libphonenumbers
v1.3.0
Published
JavaScript port of Google's libphonenumber library for parsing, formatting, and validating international phone numbers in Node.js.
Downloads
6,754
Maintainers
Readme
libphonenumbers
libphonenumbers is JS port of Google's libphonenumber.
libphonenumbers – JavaScript port of Google's libphonenumber library for parsing, formatting, and validating international phone numbers in Node.js.
🎁 Features
libphonenumbers is compatible with both JavaScript and TypeScript.
PhoneNumberUtil
- format(number, numberFormat) is used to formats a phone number in the specified format using default rules.
- formatInOriginalFormat(number, regionCallingFrom) is used to formats a phone number using the original phone number format that the number is parsed from.
- formatOutOfCountryCallingNumber(number, regionCallingFrom) is used to formats a phone number for out-of-country dialing purposes.
- getNumberType(number) is used to gets the type of a valid phone number.
- getRegionCodeForNumber(number) is used to gets the region where a phone number is from.
- isPossibleNumber(number) is used to checks whether a phone number is possible.
- isValidNumber(number) is used to checks whether a phone number matches a valid pattern.
- isValidNumberForRegion(number, regionCode) is used to checks whether a phone number is valid for a certain region.
- parseAndKeepRawInput(numberToParse, defaultRegion) is used to parses a string and returns it in prototype buffer format while keeping the raw input value.
- parse(numberToParse, defaultRegion) is used to parses a string and returns it in proto buffer format.
AsYouTypeFormatter
- inputDigit(digit) is used to formats a phone number on-the-fly as each digit is entered.
- clear() is used to clears the internal state of the formatter, so it can be reused.
PhoneNumberFormat ( The following enums is used to pass to format(number, numberFormat) )
- E164 (value is 0)
- INTERNATIONAL (value is 1)
- NATIONAL (value is 2)
- RFC3966 (value is 3)
PhoneNumberType ( The following enums is used to compare with the output of getNumberType(number) )
- FIXED_LINE (value is 0)
- MOBILE (value is 1)
- FIXED_LINE_OR_MOBILE (value is 2)
- TOLL_FREE (value is 3)
- PREMIUM_RATE (value is 4)
- SHARED_COST (value is 5)
- VOIP (value is 6)
- PERSONAL_NUMBER (value is 7)
- PAGER (value is 8)
- UAN (value is 9)
- VOICEMAIL (value is 10)
- UNKNOWN (value is -1)
PhoneNumber
- getCountryCode() is used to gets the value of the country code.
- getCountryCodeSource() is used to gets the value of the country code source.
- getExtension() is used to gets the value of the extension.
- getItalianLeadingZero() is used to gets the value of the italian leading zero.
- getNationalNumber() is used to gets the value of the national number.
- getRawInput() is used to gets the value of the raw input.
CountryCodeSource ( The following enums is used to compare with the output of getCountryCodeSource() )
- UNSPECIFIED (value is 0)
- FROM_NUMBER_WITH_PLUS_SIGN (value is 1)
- FROM_NUMBER_WITH_IDD (value is 5)
- FROM_NUMBER_WITHOUT_PLUS_SIGN (value is 10)
- FROM_DEFAULT_COUNTRY (value is 20)
ShortNumberInfo
- connectsToEmergencyNumber(number, regionCode) is used to checks whether the short number can be used to connect to emergency services when dialed from the given region.
- isPossibleShortNumber(number) is used to checks whether a short number is a possible number.
- isPossibleShortNumberForRegion(number, regionDialingFrom) is used to checks whether a short number is a possible number when dialed from the given region.
- isValidShortNumber(number) is used to checks whether a short number is a valid number.
- isValidShortNumberForRegion(number, regionDialingFrom) is used to checks whether a short number matches a valid pattern in a region.
❌ Missing Features:
JS port of Google's libphonenumber does not support the following functions and classes:
- findNumbers
- PhoneNumberOfflineGeocoder
- PhoneNumberToTimeZonesMapper
- PhoneNumberToCarrierMapper
🔧 Install
libphonenumbers is available on npm. It can be installed with the following command:
npm install libphonenumbers --save
libphonenumbers is available on yarn as well. It can be installed with the following command:
yarn add libphonenumbers
💡 Usage
🎀 PhoneNumberUtil
📦 format(number, numberFormat)
Using Standard JavaScript:
const PNF = require('libphonenumbers').PhoneNumberFormat;
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the RFC3966 format
console.log(phoneUtil.format(number, PNF.RFC3966));
// tel:+1-202-456-2121
// Format number in the national format
console.log(phoneUtil.format(number, PNF.NATIONAL));
// (202) 456-2121
// Format number in the international format
console.log(phoneUtil.format(number, PNF.INTERNATIONAL));
// +1 202-456-2121
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
const PNF = libphonenumbers.PhoneNumberFormat;
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the RFC3966 format
console.log(phoneUtil.format(number, PNF.RFC3966));
// tel:+1-202-456-2121
// Format number in the national format
console.log(phoneUtil.format(number, PNF.NATIONAL));
// (202) 456-2121
// Format number in the international format
console.log(phoneUtil.format(number, PNF.INTERNATIONAL));
// +1 202-456-2121
📦 formatInOriginalFormat(number, regionCallingFrom)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the original format
console.log(phoneUtil.formatInOriginalFormat(number, 'US'));
// => (202) 456-2121
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the original format
console.log(phoneUtil.formatInOriginalFormat(number, 'US'));
// (202) 456-2121
📦 formatOutOfCountryCallingNumber(number, regionCallingFrom)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the out-of-country format from US
console.log(phoneUtil.formatOutOfCountryCallingNumber(number, 'US'));
// 1 (202) 456-2121
// Format number in the out-of-country format from JP
console.log(phoneUtil.formatOutOfCountryCallingNumber(number, 'JP'));
// 010 1 202-456-2121
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Format number in the out-of-country format from US
console.log(phoneUtil.formatOutOfCountryCallingNumber(number, 'US'));
// 1 (202) 456-2121
// Format number in the out-of-country format from JP
console.log(phoneUtil.formatOutOfCountryCallingNumber(number, 'JP'));
// 010 1 202-456-2121
📦 getNumberType(number)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get type of phone number
console.log(phoneUtil.getNumberType(number));
// 2 // FIXED_LINE_OR_MOBILE
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get type of phone number
console.log(phoneUtil.getNumberType(number));
// 2 // FIXED_LINE_OR_MOBILE
📦 getRegionCodeForNumber(number)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get region code of number
console.log(phoneUtil.getRegionCodeForNumber(number));
// US
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get region code of number
console.log(phoneUtil.getRegionCodeForNumber(number));
// US
📦 isPossibleNumber(number)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check is possible number
console.log(phoneUtil.isPossibleNumber(number));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check is possible number
console.log(phoneUtil.isPossibleNumber(number));
// true
📦 isValidNumber(number)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get is valid number
console.log(phoneUtil.isValidNumber(number));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get is valid number
console.log(phoneUtil.isValidNumber(number));
// true
📦 isValidNumberForRegion(number, regionCode)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check number of a region is valid
console.log(phoneUtil.isValidNumberForRegion(number, 'US'));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check number of a region is valid
console.log(phoneUtil.isValidNumberForRegion(number, 'US'));
// true
📦 parseAndKeepRawInput(numberToParse, defaultRegion)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
📦 parse(numberToParse, defaultRegion)
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Get prototype buffer format
console.log(phoneUtil.parse('123456', 'US'));
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Get proto buffer format
console.log(phoneUtil.parse('123456', 'US'));
🎀 AsYouTypeFormatter
📦 inputDigit(digit)
Using Standard JavaScript:
const AsYouTypeFormatter = require('libphonenumbers').AsYouTypeFormatter;
// Create an instance object of AsYouTypeFormatter
const formatter = new AsYouTypeFormatter('US');
console.log(formatter.inputDigit('2')); // => 2
console.log(formatter.inputDigit('0')); // => 20
console.log(formatter.inputDigit('2')); // => 202
console.log(formatter.inputDigit('-')); // => 202-
console.log(formatter.inputDigit('4')); // => 202-4
console.log(formatter.inputDigit('5')); // => 202-45
console.log(formatter.inputDigit('6')); // => 202-456
console.log(formatter.inputDigit('-')); // => 202-456-
console.log(formatter.inputDigit('2')); // => 202-456-2
console.log(formatter.inputDigit('1')); // => 202-456-21
console.log(formatter.inputDigit('2')); // => 202-456-212
console.log(formatter.inputDigit('1')); // => 202-456-2121
// Clear all input digits from instance
formatter.clear();
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
const AsYouTypeFormatter = libphonenumbers.AsYouTypeFormatter;
// Create an instance object of AsYouTypeFormatter
const formatter = new AsYouTypeFormatter('US');
console.log(formatter.inputDigit('2')); // 2
console.log(formatter.inputDigit('0')); // 20
console.log(formatter.inputDigit('2')); // 202
console.log(formatter.inputDigit('-')); // 202-
console.log(formatter.inputDigit('4')); // 202-4
console.log(formatter.inputDigit('5')); // 202-45
console.log(formatter.inputDigit('6')); // 202-456
console.log(formatter.inputDigit('-')); // 202-456-
console.log(formatter.inputDigit('2')); // 202-456-2
console.log(formatter.inputDigit('1')); // 202-456-21
console.log(formatter.inputDigit('2')); // 202-456-212
console.log(formatter.inputDigit('1')); // 202-456-2121
// Clear all input digits from instance
formatter.clear();
🎀 PhoneNumber
📦 getCountryCode()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's country code
console.log(number.getCountryCode());
// 1
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's country code
console.log(number.getCountryCode());
// 1
📦 getCountryCodeSource()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's extension
console.log(number.getCountryCodeSource());
// FROM_DEFAULT_COUNTRY
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Print the phone's extension
console.log(number.getCountryCodeSource());
// FROM_DEFAULT_COUNTRY
📦 getExtension()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Print the phone's extension
console.log(number.getExtension());
// null
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Print the phone's extension
console.log(number.getExtension());
// => null
📦 getItalianLeadingZero()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get phone's italian leading zero
console.log(number.getItalianLeadingZero());
// null
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get phone's italian leading zero
console.log(number.getItalianLeadingZero());
// null
📦 getNationalNumber()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's national number
console.log(number.getNationalNumber());
// 2024562121
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's national number
console.log(number.getNationalNumber());
// 2024562121
📦 getRawInput()
Using Standard JavaScript:
// Create an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's raw input
console.log(number.getRawInput());
// 202-456-2121
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Get the phone's raw input
console.log(number.getRawInput());
// 202-456-2121
🎀 ShortNumberInfo
📦 connectsToEmergencyNumber(number, regionCode)
Using Standard JavaScript:
// Get an instance of ShortNumberInfo
const shortInfo = require('libphonenumbers').ShortNumberInfo.getInstance();
// Check 911 is emergency number in US
console.log(shortInfo.connectsToEmergencyNumber('911', 'US'));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Get an instance of ShortNumberInfo
const shortInfo = libphonenumbers.ShortNumberInfo.getInstance();
// Check 911 is emergency number in US
console.log(shortInfo.connectsToEmergencyNumber('911', 'US'));
// true
📦 isPossibleShortNumber(number)
Using Standard JavaScript:
// Get an instance of ShortNumberInfo
const shortInfo = require('libphonenumbers').ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Check 123456 is possible short number in FR
console.log(shortInfo.isPossibleShortNumber(phoneUtil.parse('123456', 'FR')));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Get an instance of ShortNumberInfo
const shortInfo = libphonenumbers.ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Check 123456 is possible short number in FR
console.log(shortInfo.isPossibleShortNumber(phoneUtil.parse('123456', 'FR')));
// true
📦 isPossibleShortNumberForRegion(number, regionDialingFrom)
Using Standard JavaScript:
// Get an instance of ShortNumberInfo
const shortInfo = require('libphonenumbers').ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Check 123456 is possible short number for region in FR
console.log(shortInfo.isPossibleShortNumberForRegion(phoneUtil.parse('123456', 'FR'), 'FR'));
// true
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Get an instance of ShortNumberInfo
const shortInfo = libphonenumbers.ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Check 123456 is possible short number for region in FR
console.log(shortInfo.isPossibleShortNumberForRegion(phoneUtil.parse('123456', 'FR'), 'FR'));
// true
📦 isValidShortNumber(number)
Using Standard JavaScript:
// Get an instance of ShortNumberInfo
const shortInfo = require('libphonenumbers').ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check 202-456-2121 is valid short number
console.log(shortInfo.isValidShortNumber(number));
// false
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Get an instance of ShortNumberInfo
const shortInfo = libphonenumbers.ShortNumberInfo.getInstance();
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check 202-456-2121 is valid short number
console.log(shortInfo.isValidShortNumber(number));
// false
📦 isValidShortNumberForRegion(number, regionDialingFrom)
Using Standard JavaScript:
// Get an instance of ShortNumberInfo
const shortInfo = require('libphonenumbers').ShortNumberInfo.getInstance();
// Get an instance of PhoneNumberUtil
const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check 202-456-2121 is valid short number for US region
console.log(shortInfo.isValidShortNumberForRegion(number, 'US'));
// false
Using ECMAScript (ES):
import libphonenumbers from 'libphonenumbers';
// Get an instance of ShortNumberInfo
const shortInfo = libphonenumbers.ShortNumberInfo.getInstance();
// Create an instance of PhoneNumberUtil
const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();
// Parse number with US country code and keep raw input
const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');
// Check 202-456-2121 is valid short number for US region
console.log(shortInfo.isValidShortNumberForRegion(number, 'US'));
// false
🦄 Credits and Inspiration
Inspired by Google's libphonenumber.