libphonenumber-js
A simpler and smaller rewrite of Google Android's libphonenumber
library in javascript/TypeScript.
Parse and format personal phone numbers.
If you’re trying to build a React component with it, take a look at react-phone-number-input
.
LibPhoneNumber
Google's libphonenumber
is an ultimate phone number formatting and parsing library developed by Google for Android phones. It is written in C++ and Java, and, while it has an official autogenerated javascript port, that port is tightly coupled to Google's closure
javascript framework, and, when compiled into a bundle, weighs about 550 kB (350 kB code + 200 kB metadata).
With many websites today asking for user's phone number, the internet could benefit from a simpler and smaller library that would just deal with parsing or formatting personal phone numbers, and that's what libphonenumber-js
is.
Differences from Google's libphonenumber
Smaller footprint:
145 kB
(65 kB code + 80 kB sufficient metadata) vs the original Google's550 kB
(350 kB code + 200 kB full metadata).Can search for phone numbers in text. Google's autogenerated javascript port doesn't provide such feature for some reason.
Focuses on parsing and formatting personal phone numbers while skipping any other "special" cases like:
Emergency phone numbers like
911
."Short codes" — short SMS-only numbers like
12345
.Numbers starting with an
*
. For example,*555
is used in New Zeland to report non-urgent traffic incidents. Or, in Israel, certain advertising numbers start with a*
.Australian
13
-smart numbers, which are a "catchy" "short" form of regular "landline" numbers and are mainly used in advertisement.Alphabetic phone numbers like
1-800-GOT-MILK
. People don't input their phone numbers like that. It was only used in advertisement in the days of push-button telephones."Two-in-one" phone numbers with "combined" extensions like
(530) 583-6985 x302/x2303
. Phone numbers like that actually represent two separate phone numbers, so it's not clear which one to pick or how to return both at the same time.Local numbers with the "area code" omitted. For example, when dialing phone numbers within the same "area", people sometimes skip the "area code", and dial, say, just
456-789
instead of proper(123) 456-789
. This all is considered a relic of the past. In the modern world, there're no "local areas" and anyone could call everyone else around the world.
Doesn't provide "geolocation" feature when it can tell a city by a phone number.
Doesn't use hyphens or brackets when formatting phone numbers in international format. Instead, whitespace is used. The rationale is that brackets aren't relevant in international context because there're no "local areas", and hyphens aren't used because whitespace just looks cleaner.
Doesn't set
.country
to"001"
when parsing "non-geographic" phone numbers, like mobile satellite communications services. Instead,.country
is set toundefined
in those cases, and instead a developer can call.isNonGeographic()
method of thePhoneNumber
instance to find out whether the parsed phone number is a "non-geographic" one.Doesn't provide the equivalent of
libphonenumber
'sformatNumberForMobileDialing()
function that formats a number for dialing from a mobile phone within the same country. This feature may be required for dialing local numbers from a mobile phone in some countries like Brazil or Colombia where they require adding "carrier codes" when making such calls. Sincelibphonenumber-js
is not a dialing library (we're not Android phone operaing system), it doesn't prepend any "carrier codes" when formatting such phone numbers, though it does parse such "carrier codes" correctly.Fixed a small bug when Canadian numbers
+1310xxxx
wheren't considered possible.<!--
- Doesn't use "carrier codes" when formatting numbers: "carrier codes" are only used in Colombia and Brazil and only when dialing within those countries from a mobile phone to a fixed line number.
(
.formatNumberForMobileDialing()
method is not implemented therefore there's no need to format carrier codes) -->
GitHub Repository Status
On March 9th, 2020, GitHub, Inc. silently banned my account — erasing all my repos, issues and comments, even in my employer's private repos — without any notice or explanation. Because of that, all source codes had to be promptly moved to GitLab. The GitHub repo is now only used as a backup (although you can still "star" it), and the primary repo is now the GitLab one. For users' convenience, issues can be reported in both places.
Install
via npm
$ npm install libphonenumber-js --save
via yarn
$ yarn add libphonenumber-js
Alternatively, one could include it on a web page directly via a <script/>
tag.
Use
If you'd like to create an issue, see bug reporting instructions.
Parse phone number
Parses a complete phone number.
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber(' 8 (800) 555-35-35 ', 'RU')
if (phoneNumber) {
phoneNumber.country === 'RU'
phoneNumber.number === '+78005553535'
phoneNumber.isPossible() === true
phoneNumber.isValid() === true
// Note: `.getType()` requires `/max` metadata: see below for an explanation.
phoneNumber.getType() === 'TOLL_FREE'
}
Format phone number
Formats a complete phone number.
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('+12133734253')
if (phoneNumber) {
phoneNumber.formatInternational() === '+1 213 373 4253'
phoneNumber.formatNational() === '(213) 373-4253'
phoneNumber.getURI() === 'tel:+12133734253'
}
"As You Type" formatter
Parses and formats an incomplete phone number.
import { AsYouType } from 'libphonenumber-js'
new AsYouType().input('+12133734')
// Returns: '+1 213 373 4'
new AsYouType('US').input('2133734')
// Returns: '(213) 373-4'
Validate phone number
Validates a complete phone number.
import {
isPossiblePhoneNumber,
isValidPhoneNumber,
validatePhoneNumberLength
} from 'libphonenumber-js'
isPossiblePhoneNumber('8 (800) 555-35-35', 'RU') === true
isValidPhoneNumber('8 (800) 555-35-35', 'RU') === true
validatePhoneNumberLength('8 (800) 555', 'RU') === 'TOO_SHORT'
validatePhoneNumberLength('8 (800) 555-35-35', 'RU') === undefined // Length is valid.
isPossiblePhoneNumber()
only validates phone number length, while isValidPhoneNumber()
validates both phone number length and phone number digits.
validatePhoneNumberLength()
is just a more detailed version of isPossiblePhoneNumber()
— if the phone number length is invalid, instead of just returning false
, it returns the actual reason why the phone number length is incorrect: TOO_SHORT
, TOO_LONG
, etc.
Full-text search
Finds complete phone numbers in text.
import { findPhoneNumbersInText } from 'libphonenumber-js'
findPhoneNumbersInText(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// number: PhoneNumber {
// country: 'RU',
// countryCallingCode: '7',
// number: '+78005553535',
// nationalNumber: '8005553535'
// },
// startsAt : 22,
// endsAt : 40
// }, {
// number: PhoneNumber {
// country: 'US',
// countryCallingCode: '1',
// number: '+12133734253',
// nationalNumber: '2133734253',
// ext: '1234'
// },
// startsAt : 86,
// endsAt : 110
// }]
"min" vs "max" vs "mobile" vs "core"
This library provides different "metadata" sets, where a "metadata" set is a complete list of phone number parsing and formatting rules for all possible countries.
As one may guess, the complete list of those rules is huge, so this library provides a way to optimize bundle size by choosing between max
, min
, mobile
or "custom" metadata:
min
— (default) The smallest metadata set- Is about
80 kilobytes
in size (libphonenumber-js/metadata.min.json
file) - Choose this when:
- You don't need to detect phone number type — "fixed line", "mobile", etc — via
.getType()
- You're fine with just validating phone number length via
.isPossible()
and you don't need to strictly validate phone number digits via.isValid()
- You don't need to detect phone number type — "fixed line", "mobile", etc — via
- Is about
max
— The complete metadata set- Is about
145 kilobytes
in size (libphonenumber-js/metadata.max.json
file) - Choose this when:
- The basic
.isPossible()
phone number length check is not enough for you and you need the strict phone number digits validation via.isValid()
- You need to detect phone number type — "fixed line", "mobile", etc — via
.getType()
- The basic
- Is about
mobile
— The complete metadata set for dealing with mobile numbers only- Is about
95 kilobytes
in size (libphonenumber-js/metadata.mobile.json
file) - Choose this when:
- You need
max
metadata capabilities and you only accept mobile numbers- It will still be able to handle non-mobile numbers just fine, with the only difference that
.isValid()
or.isPossible()
might potentially returnfalse
for them, or.getType()
might potentially returnundefined
.
- It will still be able to handle non-mobile numbers just fine, with the only difference that
- You need
- Is about
Choose one from the above and then simply import
the functions from the relevant sub-package:
min
—libphonenumber-js/min
, or justlibphonenumber-js
, since it's the default.max
—libphonenumber-js/max
mobile
—libphonenumber-js/mobile
As for "custom" metadata, it could be used in those rare cases when not all countries are needed and a developer would really prefer to reduce the bundle size to a minimum. In that case, one could generate their own "custom" metadata set and then import
the functions from libphonenumber-js/core
sub-package which doesn't come pre-packaged with any metadata and instead accepts metadata
as the last argument of each exported function.
Definitions
Country code
A "country code" is a two-letter ISO country code (like "US"
).
This library supports all officially assigned ISO alpha-2 country codes, plus a few extra ones: AC
(Ascension Island), TA
(Tristan da Cunha), XK
(Kosovo).
To check whether a country code is supported, use isSupportedCountry()
function.
Non-geographic
There're several calling codes that don't belong to any country:
+800
— Universal International Toll Free Number+808
— Universal International Shared Cost Number+870
— Inmarsat Global Limited+878
— Universal Personal Telecommunications+881
— Global Mobile Satellite System+882
and+883
— International Networks+888
— United Nations Office for the Coordination of Humanitarian Affairs+979
— International Premium Rate Service
Such phone numbering plans are called "non-geographic", and their phone numbers' country
is undefined
.
National (significant) number
"National (significant) number" is all national phone number digits, excluding the "national prefix". Examples:
- International number:
+1 213 373 4253
. Country:"US"
. National number:(213) 373-4253
. National (significant) number:213 373 4253
- Inetrnational number:
+33 1 45 45 32 45
. Country:"FR"
. National number:01 45 45 32 45
. Notice the0
at the start of the national number — it's because in France they add0
"national prefix" when writing phone numbers in national format. National (significant) number:1 45 45 32 45
(doesn't include the "national prefix").
Country calling code
"Country calling code" is all digits between the +
and the national (significant) number in a number that is written in international format. Examples:
- International number:
+1 213 373 4253
. Country:"US"
. National (significant) number:213 373 4253
. Country calling code:1
- Inetrnational number:
+33 1 45 45 32 45
. Country:"FR"
. National (significant) number:1 45 45 32 45
. Country calling code:33
Several countries could share the same "country calling code". For example, NANPA countries like USA and Canada share the same 1
country calling code.
API
parsePhoneNumber(string, defaultCountry?: string | options?: object): PhoneNumber
Parses a complete phone number from string
.
Can be imported either as a "default" export or as a "named" export called parsePhoneNumberFromString
.
import parsePhoneNumber from 'libphonenumber-js'
// import { parsePhoneNumberFromString as parsePhoneNumber } from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('(213) 373-42-53 ext. 1234', 'US')
if (phoneNumber) {
console.log(phoneNumber.formatNational())
}
Returns an instance of PhoneNumber
class, or undefined
if no phone number could be parsed from the input string. That could be for a number of reasons. For example, the phone number in the input string could be incomplete, or it could contain a phone number that has an invalid country calling code, etc.
Available options
:
defaultCountry: string
— Default country for parsing numbers written in non-international form (without a+
sign). Will be ignored when parsing numbers written in international form (with a+
sign). Instead of passing it asoptions.defaultCountry
, one could also pass it as a standalonedefaultCountry
argument (for convenience).defaultCallingCode: string
— Default calling code for parsing numbers written in non-international form (without a+
sign). Will be ignored when parsing numbers written in international form (with a+
sign). It could be specified when parsing phone numbers belonging to "non-geographic numbering plans" which by nature don't have a country code, making thedefaultCountry
option unusable.extract: boolean
— Defines the "strictness" of parsing a phone number. By default, theextract
flag istrue
meaning that it will attempt to extract the phone number from an input string like"My phone number is (213) 373-4253 and my hair is blue"
. This could be thought of as "less strict" parsing. To make it "more strict", one could passextract: false
flag, in which case the function will attempt to parse the input string as if the whole string was a phone number. Applied to the example above, it would returnundefined
because the entire string is not a phone number, but for an input string"(213) 373-4253"
it would return a parsedPhoneNumber
.
If a developer wants to know the exact reason why the phone number couldn't be parsed then they can use parsePhoneNumberWithError()
function which throws an exact error:
import { parsePhoneNumberWithError, ParseError } from 'libphonenumber-js'
try {
const phoneNumber = parsePhoneNumberWithError('(213) 373-42-53 ext. 1234', {
defaultCountry: 'US'
})
} catch (error) {
if (error instanceof ParseError) {
// Not a phone number, non-existent country, etc.
console.log(error.message)
} else {
throw error
}
}
NOT_A_NUMBER
— When the supplied string is not a phone number. For example, when there are no digits:"abcde"
,"+"
.INVALID_COUNTRY
- When
defaultCountry
doesn't exist (or isn't supported by this library yet):parsePhoneNumber('(111) 222-3333', 'XX')
. - When parsing a non-international number without a
defaultCountry
:parsePhoneNumber('(111) 222-3333')
. - When an international number's country calling code doesn't exist:
parsePhoneNumber('+9991112223333')
.
- When
TOO_SHORT
— When the number is too short. For example, just 1 or 2 digits:"1"
,"+12"
.TOO_LONG
— When the national (significant) number is too long (17 digits max) or when the string being parsed is too long (250 characters max).
Strictness
By default, the parsing function will attempt to extract a phone number from the input string even in cases like "Support: (213) 373-4253 (robot)"
, which mimicks the behavior of the original Google's libphonenumber
library, and is the default behavior for legacy reasons. However, if "strict" input validation is required, one can pass extract: false
flag to demand that the whole input string be a viable phone number.
// By default it parses without `extract: false` flag.
// It will "extract" the phone number from the input string.
parsePhoneNumber('Call: (213) 373-4253', 'US') === PhoneNumber
// When parsing the same input string with `extract: false` flag,
// it will return `undefined`, because a phone number can't
// contain letters or a colon.
parsePhoneNumber('Call: (213) 373-4253', {
defaultCountry: 'US',
extract: false
}) === undefined
// When the whole input string represents a phone number,
// parsing it with `extract: false` flag will return a `PhoneNumber`.
parsePhoneNumber('(213) 373-4253', {
defaultCountry: 'US',
extract: false
}) === PhoneNumber
PhoneNumber
PhoneNumber
class represents a complete phone number.
PhoneNumber
class instance is returned from parsePhoneNumber()
function, or it could also be constructed manually from a number in E.164
format:
const phoneNumber = new PhoneNumber('+12133734253')
// (optional) Add a phone number extension.
phoneNumber.setExt('1234')
PhoneNumber
class instance has the following properties:
number: string
— The phone number inE.164
format. Example:"+12133734253"
.countryCallingCode: string
— The country calling code. Example:"1"
.nationalNumber: string
— The national (significant) number. Example:"2133734253"
.country: string?
— The country code. Example:"US"
. Will beundefined
when nocountry
could be derived from the phone number. For example, when several countries have the samecountryCallingCode
and thenationalNumber
doesn't look like it belongs to any particular one of them. Or when a number belongs to a non-geographic numbering plan.ext: string?
— The phone number extension, if any. Example:"1234"
.carrierCode: string?
— The "carrier code", if any. Example:"15"
. "Carrier codes" are only used in Colombia and Brazil and only when dialing within those countries from a mobile phone to a fixed line number.
PhoneNumber
class instance provides the following methods:
setExt(ext: string)
Adds a phone number extension to a phone number.
const phone = "+12133734253"
const phoneExt = "1234"
const phoneNumber = parsePhoneNumber(phone)
if (phoneNumber) {
if (phoneExt) {
phoneNumber.setExt(phoneExt)
}
// Returns "(213) 373-4253 ext. 1234"
return phoneNumber.formatNational()
}
format(format: string, [options]): string
Formats the phone number into a string according to a specified format
.
Available format
s:
NATIONAL
— Example:"(213) 373-4253"
INTERNATIONAL
— Example:"+1 213 373 4253"
E.164
— Example:"+12133734253"
RFC3966
(the phone number URI) — Example:"tel:+12133734253;ext=123"
IDD
— "Out-of-country" dialing format. Example:"011 7 800 555 35 35"
for+7 800 555 35 35
being called out ofoptions.fromCountry === "US"
. If nooptions.fromCountry
was passed or if there's no default IDD prefix foroptions.fromCountry
then returnsundefined
.
Available options
:
formatExtension(number, extension)
— Formatsnumber
andextension
into a string. By default returns${number} ext. ${extension}
for almost all countries with rare exceptions of some special cases like${number} x${extension}
for the United Kingdom.nationalPrefix: Boolean
— Some phone numbers can be formatted both with national prefix and without it. In such cases the library defaults to "with national prefix" (for legacy reasons). PassnationalPrefix: false
option to force formatting without a national prefix.
Examples:
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('+12133734253')
phoneNumber.format("NATIONAL") === '(213) 373-4253'
phoneNumber.format("INTERNATIONAL") === '+1 213 373 4253'
phoneNumber.format("RFC3966") === 'tel:+12133734253'
// The following are just convenience aliases for the `.format()` function.
phoneNumber.formatNational() === phoneNumber.format("NATIONAL")
phoneNumber.formatInternational() === phoneNumber.format("INTERNATIONAL")
phoneNumber.getURI() === phoneNumber.format("RFC3966")
isPossible(): boolean
Checks if the phone number is "possible". Only checks the phone number length. Doesn't check the actual phone number digits.
isValid(): boolean
Checks if the phone number is "valid". First checks the phone number length and then checks the phone number digits against all available regular expressions.
By default, this library uses min
("minimal") metadata which is only 80 kB
in size but also doesn't include the precise validation regular expressions resulting in less strict validation rules (some very basic validation like number length check is still included for each country). If you don't mind the extra 65 kB
of metadata then use max
metadata instead of the default (min
) one. Google's library always uses "full" metadata so it will yield different isValidNumber()
results compared to the "minimal" metadata used by default in this library.
/min
vs /max
vs /mobile
metadata</summary>
#
import parseMin from 'libphonenumber-js/min'
import parseMax from 'libphonenumber-js/max'
import parseMobile from 'libphonenumber-js/mobile'
// In Singapore (+65), when a mobile number starts with `8`,
// it can only have the second digit in the range of `0..8`.
// In a number "+6589555555", the second digit is `9`
// which makes it an invalid mobile number.
// This is a "strict" validation rule and it is
// not included in the (default) `min` metadata.
// When using the (default) `min` metadata,
// basic number length check passes (from `8` to `11`)
// and the "loose" national number validation regexp check passes too:
// `(?:1\d{3}|[369]|7000|8(?:\d{2})?)\d{7}`.
parseMin('+6589555555').isValid() === true
// When using `max` or `mobile` metadata,
// the validation regexp for mobile numbers is more precise —
// `(?:8[1-8]|9[0-8])\\d{6}` — as well as the possible lengths (only `8`).
parseMax('+6589555555').isValid() === false
parseMobile('+6589555555').isValid() === false
#
See "Using phone number validation feature" for choosing between isPossible()
and isValid()
.
getPossibleCountries(): string[]
Returns a list of countries that this phone number could possibly belong to.
Can be used when parsing a complete international phone number which contains a "country calling code" that is shared between several countries. If parsing such a phone number returns country: undefined
then getPossibleCountries()
function could be used to somehow speculate about what country could this phone number possibly belong to.
getType(): string?
Returns phone number type — fixed line, mobile, toll free, etc — or undefined
if the number is invalid or if there are no phone number type regular expressions for this country in metadata.
By default, this library uses min
("minimal") metadata which is only 80 kB
in size but also doesn't include the regular expressions for determining a phone number type — fixed line, mobile, toll free, etc — which could result in getType()
returning undefined
for most countries. If you don't mind the extra 65 kB
of metadata then use max
metadata instead of the default (min
) one. Google's library always uses "full" metadata so it will yield different getNumberType()
results compared to the "minimal" metadata used by default in this library.
#
MOBILE
— Cellphones.FIXED_LINE
— Stationary phones.FIXED_LINE_OR_MOBILE
— Could beMOBILE
orFIXED_LINE
.PREMIUM_RATE
— Callers are charged by call or per minute. SMS text messages are also subject to charge.TOLL_FREE
— Free to call from anywhere.SHARED_COST
— "An intermediate level of telephone call billing where the charge for calling a particular international or long-distance phone number is partially, but not entirely, paid for by the recipient".VOIP
— "IP telephony". Calls are made over the Internet rather than via the conventional telephone-only lines.PERSONAL_NUMBER
— Phones connected by satellites.PAGER
— "Pagers" are wireless telecommunications devices that were widely used in the 80-es and could receive (and, optionally, send) text or voice messages.UAN
— "UAN is a number resource that allows a service or business with several terminating lines to be reached through a unique universal number. A UAN number shall be dialable from the entire Pakistan, based on the applicant’s proposed coverage without dialing the area code. UAN cannot be assigned to two separate business or mutually exclusive public services. Each service provider who allows UAN through its network shall offer a tariff, which is not more expensive than the normal tariff available for a similar non-UAN public service".VOICEMAIL
— "A voicemail access number is a telephone number provided by a voicemail service to allow subscribers to dial into their voicemail accounts and manage any currently saved messages. Typically, the number is used when a subscriber is away from home and wishes to check any voice messages currently stored on the service. Originally envisioned as part of the features associated with voicemail accounts offered with land line accounts, many mobile service providers today also supply their customers with a voicemail access number to use when checking messages from any phone other than the mobile or cellular unit associated with the account".
#
/min
vs /max
vs /mobile
metadata</summary>
#
import parseMin from 'libphonenumber-js/min'
import parseMax from 'libphonenumber-js/max'
import parseMobile from 'libphonenumber-js/mobile'
// Singapore (+65) mobile number "+6584655555".
// The (default) `min` bundle doesn't contain any regexps for
// getting phone number type from phone number digits for Singapore.
parseMin('+6584655555').getType() === undefined
// The `max` does contain all the regexps for getting
// phone number type from phone number digits for any country.
parseMax('+6584655555').getType() === 'MOBILE'
// The `max` does contain all the regexps for getting
// mobile phone number type from mobile phone number digits for any country.
parseMobile('+6584655555').getType() === 'MOBILE'
isNonGeographic(): boolean
Returns true
if the number belongs to a "non-geographic numbering plan".
isEqual(phoneNumber: PhoneNumber): boolean
Compares two PhoneNumber
s: returns true
if they're equal, false
otherwise.
isPossiblePhoneNumber(input: string, defaultCountry?: string | options?: object): boolean
Checks if input
can be parsed as a "possible" phone number. A phone number is "possible" when it has valid length. The actual phone number digits aren't validated.
isPossiblePhoneNumber('8 (888) 888-88-88', 'RU') === true
isPossiblePhoneNumber('+12223333333') === true
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a shortcut for a two-step process of "strictly" parsing a phone number and then calling .isPossible()
.
isValidPhoneNumber(input: string, defaultCountry?: string | options?: object): boolean
Checks if input
can be parsed as a "valid" phone number. A phone number is "valid" when it has valid length, and the actual phone number digits match the regular expressions for its country.
isValidPhoneNumber('8 (888) 888-88-88', 'RU') === false
isValidPhoneNumber('8 (800) 555-35-35', 'RU') === true
isValidPhoneNumber('+12223333333') === false
isValidPhoneNumber('+12133734253') === true
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a shortcut for a two-step process of "strictly" parsing a phone number and then calling .isValid()
.
See "Using phone number validation feature" for choosing between isPossible()
and isValid()
.
isValidPhoneNumberForCountry(input: string, country: string): boolean
Same as isValidPhoneNumber()
but with the "default country" argument being replaced with an "exact country", which is more strict.
This function is not currently exported from this library. The reason is that its result would be too vague when it returns false
— it could mean any of:
- The input is not a valid phone number.
- The input is a valid phone number but it belongs to another country.
- The input is a phone number that belongs to the correct country but is not valid.
At least the second case should be handled separately from a "User Experience" point of view: if the user has input a valid phone number but for another country, they should be notified that "perhaps you meant another country" rather than just throwing "the phone number is incorrect" error in their face.
But for those who'd still like to have such function, here's a possible implementation for it:
export default function isValidPhoneNumberForCountry(phoneNumberString, country) {
const phoneNumber = parsePhoneNumber(phoneNumberString, {
defaultCountry: country,
// Demand that the entire input string must be a phone number.
// Otherwise, it would "extract" a phone number from an input string.
extract: false
})
if (!phoneNumber) {
return false
}
if (phoneNumber.country !== country) {
return false
}
return phoneNumber.isValid()
}
The same approach could be used to implement an isPossiblePhoneNumberForCountry()
function.
validatePhoneNumberLength(input: string, defaultCountry?: string | options?: object): string?
Checks if input
phone number length is valid. If it is, then nothing is returned. Otherwise, a rejection reason is returned.
NOT_A_NUMBER
— When the supplied string is not a phone number. For example, when there are no digits:"abcde"
,"+"
.INVALID_COUNTRY
- When
defaultCountry
doesn't exist (or isn't supported by this library yet):parsePhoneNumber('(111) 222-3333', 'XX')
. - When parsing a non-international number without a
defaultCountry
:parsePhoneNumber('(111) 222-3333')
. - When an international number's country calling code doesn't exist:
parsePhoneNumber('+9991112223333')
.
- When
TOO_SHORT
— When the number is too short. For example, just 1 or 2 digits:"1"
,"+12"
.TOO_LONG
— When the national (significant) number is too long (17 digits max) or when the string being parsed is too long (250 characters max).INVALID_LENGTH
— When the national (significant) number is neither too short, nor too long, but somewhere in between and its length is still invalid.
#
validatePhoneNumberLength('abcde') === 'NOT_A_NUMBER'
validatePhoneNumberLength('444 1 44') === 'INVALID_COUNTRY'
validatePhoneNumberLength('444 1 44', 'TR') === 'TOO_SHORT'
validatePhoneNumberLength('444 1 444', 'TR') === undefined // Length is valid.
validatePhoneNumberLength('444 1 4444', 'TR') === 'INVALID_LENGTH'
validatePhoneNumberLength('444 1 44444', 'TR') === 'INVALID_LENGTH'
validatePhoneNumberLength('444 1 444444', 'TR') === undefined // Length is valid.
validatePhoneNumberLength('444 1 4444444444', 'TR') === 'TOO_LONG'
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a more detailed version of isPossiblePhoneNumber()
for those who asked for a more specific rejection reason.
The phone number is parsed "strictly" from the input string.
class
AsYouType(defaultCountry?: string | options?: object)
Creates a formatter for a partially-entered phone number.
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
The formatter instance has the following methods:
input(text: string)
— Appends text to the input. Returns the formatted phone number.reset()
— Resets the input.
new AsYouType().input('+12133734') === '+1 213 373 4'
new AsYouType('US').input('2133734') === '(213) 373-4'
The formatter instance also provides the following getters:
getNumber(): PhoneNumber?
— Returns thePhoneNumber
. Will returnundefined
if no national (significant) number digits have been entered so far, or if nodefaultCountry
/defaultCallingCode
has been specified and the user enters a phone number in national format (without a+
).getNumberValue(): string?
— Returns the phone number inE.164
format. For example, for default country"US"
and input"(222) 333-4444"
it will return"+12223334444"
. Will returnundefined
if no digits have been input, or when the user inputs a phone number in national format (without a+
) and no default country or default "country calling code" have been specified.getChars(): string
— Returns the phone number characters:+
sign (if present) and the digits. Returns an empty string if no phone number characters have been input.getTemplate(): string
— Returns the template that is used to format the phone number characters —+
sign (if present) and the digits — which are designated byx
-es. Returns an empty string if no phone number characters have been input.
// National phone number input example.
const asYouType = new AsYouType('US')
asYouType.input('2') === '2'
asYouType.getNumber().number === '+12'
asYouType.getChars() === '2'
asYouType.getTemplate() === 'x'
asYouType.input('1') === '21'
asYouType.getNumber().number === '+121'
asYouType.getChars() === '21'
asYouType.getTemplate() === 'xx'
asYouType.input('3') === '(213)'
asYouType.getNumber().number === '+1213'
asYouType.getChars() === '213'
asYouType.getTemplate() === '(xxx)'
asYouType.input('3734253') === '(213) 373-4253'
asYouType.getNumber().number === '+12133734253'
asYouType.getChars() === '2133734253'
asYouType.getTemplate() === '(xxx) xxx-xxxx'
// International phone number input example.
const asYouType = new AsYouType()
asYouType.input('+1-213-373-4253') === '+1 213 373 4253'
asYouType.getNumber().country === 'US'
asYouType.getNumber().number === '+12133734253'
asYouType.getChars() === '+12133734253'
asYouType.getTemplate() === 'xx xxx xxx xxxx'
isInternational(): boolean
— Returnstrue
if the phone number is being input in international format. In other words, returnstrue
if and only if the parsed phone number starts with a"+"
.getCallingCode(): string?
— Returns the "country calling code" part of the phone number. Returnsundefined
if the number is not being input in international format, or if no valid "country calling code" has been entered. Supports "non-geographic" phone numbering plans: even though those aren't technically "countries", they have their own "country calling codes" too.getCountry(): string?
— Returns a two-letter country code of the phone number. Returnsundefined
for "non-geographic" phone numbering plans. Returnsundefined
if no phone number has been input yet, or if it couldn't tell what country the phone number belongs to — that could happen when several countries have the same "country calling code" and the phone number doesn't look like it belongs to any particular one of them.isPossible(): boolean
— Returnstrue
if the phone number is "possible". Is just a shortcut forgetNumber()?.isPossible()
.isValid(): boolean
— Returnstrue
if the phone number is "valid". Is just a shortcut forgetNumber()?.isValid()
.
1.6.0
)</summary>
#
For legacy API (before version 1.6.0
) the formatter instance provides the following getters:
country: string?
— Phone number country. Will returnundefined
if the country couldn't be derived from the number.getNationalNumber(): string
— Returns the national (significant) number part of the phone number.getTemplate(): string?
— Same as the current version ofgetTemplate()
with the only difference that it returnsundefined
if no suitable format was found for the number being entered (or if no national (significant) number has been entered so far).
// National phone number input example.
const asYouType = new AsYouType('US')
asYouType.input('2') === '2'
asYouType.getNationalNumber() === '2'
asYouType.input('1') === '21'
asYouType.getNationalNumber() === '21'
asYouType.input('3') === '(213)'
asYouType.getNationalNumber() === '213'
asYouType.input('3734253') === '(213) 373-4253'
asYouType.getNationalNumber() === '2133734253'
// International phone number input example.
const asYouType = new AsYouType()
asYouType.input('+1-213-373-4253') === '+1 213 373 4253'
asYouType.country === 'US'
asYouType.getNationalNumber() === '2133734253'
#
"As You Type" formatter was created by Google as part of their Android OS and therefore only works for numerical keyboard input, i.e. it can only accept digits (and a +
sign at the start of an international number). When used on desktops where a user can input all kinds of punctuation (spaces, dashes, parens, etc) it simply ignores everything except digits (and a +
sign at the start of an international number).
Google's "As You Type" formatter does not support entering phone number extensions. If your project requires inputting phone number extensions then use a separate input field for that.
findPhoneNumbersInText(text: string, defaultCountry?: string | options?: object): object[]
Searches for complete phone numbers in text
.
Available options
:
defaultCountry: string
defaultCallingCode: string
For the description of defaultCountry
or defaultCallingCode
, see parsePhoneNumber()
function description.
import { findPhoneNumbersInText } from 'libphonenumber-js'
findPhoneNumbersInText(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// number: PhoneNumber {
// country: 'RU',
// countryCallingCode: '7',
// number: '+78005553535',
// nationalNumber: '8005553535'
// },
// startsAt : 22,
// endsAt : 40
// }, {
// number: PhoneNumber {
// country: 'US',
// countryCallingCode: '1',
// number: '+12133734253',
// nationalNumber: '2133734253',
// ext: '1234'
// },
// startsAt : 86,
// endsAt : 110
// }]
(in previous versions, it was called findNumbers()
)
1.6.0
) example</summary>
#
import { findNumbers } from 'libphonenumber-js'
findNumbers(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// phone : '8005553535',
// country : 'RU',
// startsAt : 22,
// endsAt : 40
// },
// {
// phone : '2133734253',
// country : 'US',
// ext : '1234',
// startsAt : 86,
// endsAt : 110
// }]
#
By default it processes the whole text and then outputs the phone numbers found. If the text is very big (say, a hundred thousand characters) then it might freeze the user interface for a couple of seconds. To avoid such lags one could employ "iterator" approach using searchPhoneNumbersInText()
to perform the search asynchronously (e.g. using requestIdleCallback
or requestAnimationFrame
).
(in previous versions, it was called searchNumbers()
)
searchPhoneNumbersInText()
</summary>
#
ES6 iterator:
import { searchPhoneNumbersInText } from 'libphonenumber-js'
const text = `
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`
async function() {
for (const number of searchPhoneNumbersInText(text, 'US')) {
console.log(number)
await new Promise(resolve => setTimeout(resolve, 0))
}
console.log('Finished')
}
Java-style iterator (for those still not using ES6):
import { PhoneNumberMatcher } from 'libphonenumber-js'
const matcher = new PhoneNumberMatcher(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, {
defaultCountry: 'US',
v2: true
})
// Search cycle iteration.
const iteration = () => {
if (matcher.hasNext()) {
console.log(matcher.next())
setTimeout(iteration, 0)
} else {
console.log('Finished')
}
}
// Run the search.
iteration()
#
Although Google's javascript port doesn't provide the findPhoneNumbersInText()
function, the Java and C++ ports do. I guess that's because Google just doesn't need to crawl phone numbers on Node.js because they do it in Java or C++. Still, javascript nowadays is the most popular programming language given its simplicity and user-friendliness. The findPhoneNumbersInText()
function provided by this library is a port of Google's PhoneNumberMatcher.java
into javascript.
getExampleNumber(country: string, examples: object): PhoneNumber
Returns an example phone number for a country. Returns an instance of PhoneNumber
class. Will return undefined
if country
doesn't exist or isn't supported by this library.
import examples from 'libphonenumber-js/mobile/examples'
import { getExampleNumber } from 'libphonenumber-js'
const phoneNumber = getExampleNumber('RU', examples)
phoneNumber.formatNational() === '8 (912) 345-67-89'
isSupportedCountry(country: string): boolean
Checks if a country is supported by this library.
isSupportedCountry('RU') === true
isSupportedCountry('XX') === false
getCountries(): string[]
Returns a list of supported countries.
getCountries() === ["AC", "AD", ...]
getCountryCallingCode(country: string): string
Returns country calling code for a country. Will throw an error if country
doesn't exist or isn't supported by this library.
getCountryCallingCode('RU') === '7'
getCountryCallingCode('IL') === '972'
getExtPrefix(country: string): string
Returns phone number extension prefix for a given country. If no custom ext prefix is defined for a country
then the default " ext. "
prefix is returned.
getExtPrefix('US') === ' ext. '
getExtPrefix('GB') === ' x'
parseDigits(text: string): string
Parses digits from string. Can be used for building a phone number extension input component (e.g. react-phone-number-input).
parseDigits('x123') === '123'
parseDigits('٤٤٢٣') === '4423'
parseIncompletePhoneNumber(text: string): string
Parses phone number characters (+
and digits). Can be used for building a phone number input component (e.g. react-phone-number-input).
parseIncompletePhoneNumber('8 (800) 555') === '8800555'
parseIncompletePhoneNumber('+7 800 555') === '+7800555'
parseIncompletePhoneNumber('+٤٤٢٣٢٣٢٣٤') === '+442323234'
parsePhoneNumberCharacter(character, prevParsedCharacters?, eventListener?)
Parses next character of an input string while parsing phone number digits (including a +
) from that string. Basically, it discards everything except +
and digits, and +
is only allowed at the start of a phone number.
This function is a low-level one that is currently only used in react-phone-number-input
with input-format
. Frankly speaking, that's the only reason why this function is exported. Other developers, perhaps, should just ignore it and use parseIncompletePhoneNumber()
instead because it's much simpler.
// Suppose a user inputs a "+1 (213) 373-42-53" string
// and it starts parsing that string character-by-character.
parsePhoneNumberCharacter('+', undefined) === '+'
parsePhoneNumberCharacter('1', '+') === '1'
parsePhoneNumberCharacter(' ', '+1') === undefined
parsePhoneNumberCharacter('(', '+1') === undefined
parsePhoneNumberCharacter('2', '+1') === '2'
parsePhoneNumberCharacter('1', '+12') === '1'
parsePhoneNumberCharacter('3', '+121') === '3'
parsePhoneNumberCharacter(')', '+1213') === undefined
parsePhoneNumberCharacter(' ', '+1213') === undefined
parsePhoneNumberCharacter('3', '+1213') === '3'
parsePhoneNumberCharacter('7', '+12133') === '7'
parsePhoneNumberCharacter('3', '+121337') === '3'
parsePhoneNumberCharacter('-', '+121337') === undefined
parsePhoneNumberCharacter('4', '+1213373') === '4'
parsePhoneNumberCharacter('2', '+12133734') === '2'
parsePhoneNumberCharacter('-', '+12133734') === undefined
parsePhoneNumberCharacter('5', '+121337342') === '5'
parsePhoneNumberCharacter('3', '+1213373425') === '3'
So basically, it's the same as parseIncompletePhoneNumber()
with the only difference that it operates at a character-by-character level rather than at a string-as-a-whole level.
The optional eventListener
argument is a function of eventName: string
argument. It will be called with an "end"
argument in a situation when the application should stop parsing the input string. Currently, the only situation when that could happen is when it encounters an "out-of-place" +
character. For example, when parsing a "+1 (234) + 56-78"
string, it would emit an "end"
event at the second +
character so that the application could return "+1234"
rather than "+12345678"
.
formatIncompletePhoneNumber(value: string, defaultCountry?: string | options?: object): string
Formats a possibly incomplete phone number.
While the usual parsePhoneNumber(string).format()
function could only be used to format a complete phone number, this function could be used to format a possibly incomplete phone number.
The value
argument should be a (possibly incomplete) phone number in E.164
format.
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just an alias for new AsYouType(defaultCountry, metadata).input(value)
. It can be used for building a phone number input component (e.g. react-phone-number-input).
// National numbers, with second argument.
formatIncompletePhoneNumber('8800555', 'RU') === '8 (800) 555'
formatIncompletePhoneNumber('8800555', { defaultCountry: 'RU' }) === '8 (800) 555'
formatIncompletePhoneNumber('8800555', { defaultCallingCode: '7' }) === '8 (800) 555'
// International numbers, without second argument.
formatIncompletePhoneNumber('+7800555') === '+7 800 555'
Legacy API
1.6.0
): parse()
, parseNumber()
, format()
, formatNumber()
, isValidNumber()
, getNumberType()
.</summary>
parseNumber(text, [defaultCountry], [options])
(previously called parse()
)
(legacy API)
Attempts to parse a phone number from text
.
If defaultCountry
is passed then it's gonna be the default country for parsing non-international phone numbers.
Returns { country, phone, ext }
object where
country
is a country code.phone
is a national (significant) number.ext
is a phone number extension.
If the phone number supplied isn't valid then an empty object {}
is returned.
// Parses international numbers.
parseNumber('+1 213 373 4253') === { country: 'US', phone: '2133734253' }
parseNumber('Phone: +1-213-373-4253.') === { country: 'US', phone: '2133734253' }
parseNumber('+12133734253') === { country: 'US', phone: '2133734253' }
// Parses national numbers provided a default country.
parseNumber('Phone: (213) 373-4253.', 'US') === { country: 'US', phone: '2133734253' }
// Parses phone number extensions.
parseNumber('(213) 373-4253 ext. 123', 'US') === { country: 'US', phone: '2133734253', ext: '123' }
// Parses RFC 3966 phone number URIs.
parseNumber('tel:+78005553535;ext=123') === { country: 'RU', phone: '8005553535', ext: '123' }
If the phone number supplied isn't valid then an empty object {}
is returned.
parseNumber('+1 111 111 1111') === {}
parseNumber('(111) 111-1111', 'US') === {}
parseNumber('abcdefg') === {}
#
Available options
:
defaultCountry : string
— Same as thedefaultCountry
argument.extended : boolean
— If set totrue
thenparseNumber()
will attempt to parse even a remotely hypothetical phone number even if it is considered "invalid".
{ extended: true }
documentation and examples</summary>
The result of "extended" parsing is an object where
country
is a country code.phone
is a national (significant) number.ext
is a phone number extension.countryCallingCode
is a country calling code.carrierCode
s are only used in Colombia and Brazil and only when dialing within those countries from a mobile phone to a fixed line number.valid: boolean
— whether it's a "valid" (real) phone number.possible: boolean
— a phone number is considered "possible" when it fits the phone number length rules for a given country. E.g. for US national (significant) number regexp is[2-9]\d{9}
and possible national (significant) number length is10
so a phone number(111) 111-1111
is not a "valid" number because it doesn't match the US national (significant) number regexp but it is a "possible" number because it's10
digits long.- Some or all of these properties may be absent from the result object.
`
js
// If the number is valid.
parseNumber('Phone: (213) 373-4253.', 'US', { extended: true }) ===
{
country: 'US',
phone: '2133734253',
ext: undefined,
countryCallingCode: 1,
carrierCode: undefined,
valid: true,
possible: true
}
// If the number is not "valid" but "possible". parseNumber('(111) 111-1111', 'US', { extended: true }) === { country: 'US', phone: '1111111111', ext: undefined, countryCallingCode: 1, carrierCode: undefined, valid: false, possible: true }
// If the number is not "valid" but "possible" // and country can't be derived from it. // (e.g. can't tell if it's a US number or a Canadian number) parseNumber('+1 111 111 1111', { extended: true }) === { country: undefined, phone: '1111111111', ext: undefined, countryCallingCode: 1, carrierCode: undefined, valid: false, possible: true }
// If the number is not "possible" (invalid length). parseNumber('(213) 373', 'US', { extended: true }) === { country: 'US', phone: '213373', ext: undefined, countryCallingCode: 1, carrierCode: undefined, valid: false, possible: false }
// In some cases if the number is extremely not "possible"
// then an empty object {}
is returned.
//
// Too short (or too long)