Phone Number Standards

This guide details Afghanistan phone number formats (+93), validation rules, and area codes (20-69). Learn mobile (07X XXXXXXX), landline (0AA XXXXXX) patterns with regex examples. Includes JavaScript validation snippets and error handling for robust implementations.

Explore ??land Islands phone number formats (+358): landline (18[1-8]X{3,6}), mobile (4[0-8]X{4,8}, 50X{4,8}, 4946X{2,6}), toll-free (800X{4,6}). Includes regex for validation, dialing codes, and ITU-T E.164 normalization.

Understand Albania's (+355) phone number system: formats, area/operator codes (2-5 digits), & validation. Includes geographic (0AA XXX XXXX) & mobile (06X XXX XXXX) patterns. Essential for developers needing E.164 formatting & regex for validation; covers toll-free (0800) & premium (0900) services.

Explore Algeria's phone number system: format (+213 XX XXXXXXX), area codes, and validation. Implement robust regex (e.g., mobile: ^\+213(5[4-6]|6[5-7]|7[7-9])\d{7}$) for accurate validation. Includes formatting examples and dialing procedures for developers.

Explore American Samoa's (+1 684) phone number formats, including landline ([2-9]XX XXXX) & mobile (7XX XXXX) patterns. Learn validation via regex (e.g., ^\+1 684...). Understand dialing, NANP, & FCC regulations. Ideal for developers needing number parsing or validation logic.

Andorra phone number deep-dive: format (+376), validation, and structure. Learn fixed-line (7/8XXXXX), mobile (6XX XXXX), & special service number patterns. Includes regex for validation and E.164 compliance details, crucial for developers integrating Andorran numbers.

Explore Angola's phone number system: formats, area codes, & validation. Understand 9-digit landline (2X XXXXXXX) & mobile (9[1-9]XXXXXXX) patterns. Includes regex for validation and E.164 formatting guidance.

Anguilla phone number deep-dive: formats, area code (264), & validation. Learn E.164 normalization, NANP compliance, & mobile/landline regex. Includes MNP details & examples.

Explore Antigua and Barbuda phone number formats (+1 268): landline (46X), mobile (464, 7XX, 5XX). Includes validation regex, E.164 format, and number portability. Implement robust validation with JavaScript examples and understand the NANP regulatory compliance. Covers network infrastructure, emergency numbers, and developer best practices.

Understand Argentina's phone number system: formats, area codes, & validation. Covers E.164 structure, landline/mobile prefixes (+54 9), & regex validation. Learn the 10-digit rule and ENACOM regulations. Includes JavaScript validation examples.

Comprehensive guide to Armenia phone number formats (+374): area codes, validation, and structure. Includes landline (010XXXXXX), mobile (0[33|41|...]XXXXXX) examples. Regex for validation, emergency numbers (101-104, 911), and PSRC compliance details provided.

Aruba phone number format deep dive: covers +297 country code, 7-digit local numbers, and dialing conventions. Includes regex for validation (e.g. ^5\d{6}$ landlines, ^800\d{4}$ toll-free). Understand mobile (290X{4}) vs landline (5X{6}) patterns and ITU-T E.164 compliance.

Explore Ascension Island phone number formats (+247): landline (6[2-467]XXX) & mobile (4XXX). Learn validation using regex, E.164 formatting, dialing codes, & database schema. Ensure correct implementation with this guide.

Explore Australia's phone number formats, area codes, and validation rules. Understand landline (02, 03, 07, 08), mobile (04XX XXX XXX), & toll-free (1800) patterns. Includes regex for validation & dialing procedures adhering to ITU-T E.164; crucial for developers.

Explore Austria's phone number format (+43): area codes, structure, and validation. Understand landline/mobile patterns (0664, 0676), regex (e.g. ^06[56789]\d{4,10}$), and dialing. Covers geographic, toll-free (0800), and premium numbers, plus number portability.

Explore Azerbaijan's phone number formats (+994) with this in-depth guide. Understand NSN structure (8-9 digits), area codes (Baku: 12, Ganja: 22), mobile prefixes (50, 51, 55). Includes regex patterns like ^\+994(12|22|36)\d{7}$ for validation.

Explore Bangladesh phone number formats (+880): structure, area codes, & validation. Understand 9-10 digit NSN, mobile (+8801[3-9]\d{8}$), fixed-line patterns (+880[2-9]\d{7,8}$). Includes dialing codes, BTRC regulation, & MNP insights.

Explore Barbados phone number formats (+1 246): NANP structure, area codes, and validation. Understand 7-digit subscriber numbers, dialing codes (011), and regex patterns. Includes toll-free (800), premium (900) examples, plus ITU-T E.164 compliance for telecom professionals.

Explore Belarus phone number formats (+375): structure, area/carrier codes, and validation. Understand landline (+375 17...), mobile (+375 29...), and toll-free formats. Includes regex for validation (e.g., ^\+375\s(29|33|44)\s\d{7}$). Perfect for developers needing E.164 compliance.

Explore Belgium's phone number formats (+32): landline (0XX XXX XXX), mobile (04XX XXX XXX), toll-free (0800 XXX XX). Includes regex for validation, dialing codes, and ITU E.164 compliance. Essential for developers needing accurate Belgian number handling.

Explore Belize phone number formats (+501): structure, dialing codes, & validation. Understand 7-digit numbering, landline (2[02]XXXX), mobile (6[0-35-7]XXXXX) patterns. Includes regex for developers & ITU-T E.164 compliance details.

Explore Benin's (+229) phone number formats, crucial for telecom professionals. Understand 8-digit structure, mobile (9,6,5,4XXXXXXX) & landline (2XXXXXXX) patterns. Includes regex for validation and ITU-T E.164 compliance insights.

Bermuda phone number guide: formats, area code (441), & validation. Covers landline (+1 441 292 XXXX), mobile (+1 441 334 XXXX) & toll-free (+1 800 XXX XXXX). Includes regex.

Bhutan phone number format (+975) explained: area codes, validation & dialing. Understand landline (2[3-6]XXXXXX), mobile (17[1-8]XXXXXX) patterns. Includes regex for validation and ITU-T E.164 compliance details.

Explore Bolivia's phone number formats (+591): landline (8-digit '0X XXX XXXX'), mobile ('6/7X XXX XXX'), & toll-free ('800 XXX XXXX'). Includes regex validation, dialing codes, ITU standards, and number portability. Essential for developers needing telecom data.

Explore Bonaire, Sint Eustatius, and Saba phone number formats (+599): landline (7 digits) & mobile (9 digits). Includes number structure, dialing codes, and validation regex (^+599[1-9]\d{6}$ for landlines). TRA regulations and ITU-T E.164 compliance covered.

Explore Bosnia and Herzegovina phone number formats (+387): structure, area codes, and validation. Includes landline (0XX XXXXXX), mobile (06X XXXXXX) examples. Regex patterns provided for validation. Understand dialing rules, number portability, and RAK regulations. Ideal for developers needing E.164 compliance.

Explore Bosnia & Herzegovina phone number formats (+387): area codes, landline/mobile structure, and validation. Includes regex patterns like ^6[0-9]{7}$ for mobile. Covers dialing codes, number portability since 2015, and CRA regulation. Ideal for developers needing 6-7 digit subscriber number details.

Explore Botswana phone number formats (+267): landline (2X XXXX), mobile (7[1-8]XXXXXX), toll-free (0800XXXX). Includes ITU-T E.164 standards, regex validation `/^7[1-8][0-9]{6}$/`, dialing codes, BOCRA oversight, and number portability for telecom professionals.

Explore Brazil's phone number formats (+55), area codes, and validation. Understand landline `(NN) NNNN-NNNN` vs. mobile `(NN) 9NNNN-NNNN` patterns. Includes regex for validation and dialing: e.g., `^\(?(1[1-9]...\)? ?9\d{4}-?\d{4}$` for mobile. Essential for developers needing E.164 compliance.

This guide details the British Indian Ocean Territory (+246) phone number format. Learn 7-digit structure, including geographic (37X{5}) and mobile (38X{5}) number patterns. Includes JavaScript regex validation examples and E.164 formatting for developers and telecom engineers.

This guide details British Virgin Islands (+1 284) phone number formats, crucial for developers integrating BVI telecom data. Learn NANP structure (NPA-NXX-XXXX), validation regex (e.g., /^1?(\+1)?284[2-9]\d{6}$/), number portability, and E.164 formatting for seamless application integration.

Explore Brunei (+673) phone number formats: landline (7 digits, 2/3 prefix), mobile (7-8 digits, 7/8 prefix). Includes regex for validation (/^[23]\d{6}$/). Covers dialing & ITU-T E.164.

Explore Bulgaria's phone number formats (+359): area codes, structure, and validation. Includes landline (0[2-9]X{5,7}), mobile (08[7-9]X{7}) regex. Examples: Sofia (02), Plovdiv (032). Covers dialing, portability since 2007, and CRC regulation. Ideal for developers needing accurate telecom data.

Explore Burkina Faso's phone number format (+226): an in-depth guide for developers. Understand 8-digit number structure ([2-7]XXXXXXX), landline (2XXXXXXX), mobile ([5-7]XXXXXXX). Includes regex for validation and dialing procedures. Follows ITU-T E.164; no number portability.

Explore Burundi's phone number formats (+257): structure, dialing codes, & validation. Understand landline (22XXXXXXX) & mobile (79/71XXXXXXX) patterns. Includes regex for validation, E.164 compliance, & telecom operator details. Ideal for developers needing number parsing logic.

Explore C??te d'Ivoire's (+225) phone number system: formats, dialing codes, & validation. Understand 10-digit structure (XZABPQMCDU), mobile (01, 05, 07) vs. fixed-line (21, 25, 27). Includes regex: `^0[157]\d{8}$` & ARCEP regulatory details.

Explore Cabo Verde's (+238) phone number system: formats, dialing codes, and validation. Understand landline (2[1-7]XXXXXX), mobile (9[1-9]XXXXX) & toll-free (800XXXX) structures. Includes regex for validation & ITU compliance details.

Explore Cambodian phone number validation: formats, area codes (+855), and regex. Learn mobile (01X), landline (0[2-4]), & special service number structures. Includes validation techniques, conversion to +855 international format, and data storage best practices. Ensure data integrity and regulatory compliance.

Explore Cameroon's phone number formats (+237): structure, dialing codes, & validation. Understand landline (2X XX XX XX), mobile (6X XX XX XX) patterns. Includes regex: `^2\d{7}$`, `^6\d{7}$` for validation. Learn about MNP and ITU-T E.164 compliance.

Explore Canada's phone number formats, area codes, and validation. Understand the +1 country code, 10-digit structure (NXX-NXX-XXXX), and dialing procedures. Includes regex for validation like ^\+1[2-9]\d{2}[2-9]\d{2}\d{4}$ and upcoming 559/357 overlays.

CAR phone number guide: formats, area codes, & validation. Understand +236 numbering: landline (21XXXXXX), mobile (7[024-7]XXXXXX), & premium (8776XXXX). Includes regex for validation.

Explore Chad's phone number formats (+235): validation (landline /^22\d{6}$/, mobile /^[679]\d{7}$/), emergency (112, 117, 118), int'l dialing (00/16 prefixes). Includes carrier codes and technical implementation.

Explore Chilean phone number formats (+56): structure, validation & dialing. Understand landline (2XXXXXXXX), mobile (9XXXXXXXX) & toll-free (800XXXXXX) patterns. Includes regex for validation & SUBTEL regulatory details.

Understand China's phone number formats (+86): landline (10-12 digits w/ 2-4 digit area codes like '10'), mobile (11 digits). Includes validation regex, dialing codes, & operator prefixes. Ideal for telecom engineers needing numbering plan details.

Explore Christmas Island phone number formats (+61): landline (8[1-9]XXXXXXX), mobile (4[0-9]XXXXXXX). Includes validation regex, dialing codes (0011), and ITU E.164 compliance. Essential for developers needing telecom specifics; e.g., validating '891234567' or '+61' handling.

Comprehensive guide to Cocos (Keeling) Islands phone numbers (+61): formats, area codes, & validation. Includes number structure (9 digits), regex (e.g. ^\+614\d{8}$), and dialing for landline/mobile. Conforms to ITU-T E.164; managed by ACMA.

Comoros phone number formats (+269) explained: structure, area codes, and validation. Learn the 7-digit NSN format, dialing codes (00 for international), and number types. Includes regex for validation: `/^\+269[3478]\d{6}$/` and JavaScript examples.

Explore Washington, D.C.'s area code 202 telecom infrastructure, covering 68.34 sq mi & 671,000+ residents. Understand the 771 overlay, mandatory 10-digit dialing since 2021, fiber optics, 5G, & regulatory compliance for secure government & diplomatic communication.

Understand Cook Islands phone number formats (+682) with this technical guide. Learn the 5-7 digit subscriber number structure, landline (2XXXX) & mobile patterns ([578]XXXX). Includes regex for validation: `/^[2-578]\d{4}$/`. No area codes used; adheres to ITU-T E.164.

Understand Costa Rica's +506 phone number format: an 8-digit closed system. Includes landline (2XXX-XXXX), mobile (8XXX-XXXX) examples, and VoIP (21XX-XXXX). Validate numbers using regex: `^2\d{7}$`, `^8\d{7}$`. Learn dialing procedures and number portability.

Explore Croatia's phone number formats (+385): area codes, landline (01 XXX XXXX), mobile (09X XXX XXX) structure, and dialing. Validate numbers using regex: `^0[1-9]\d{7}$`. Includes E.164, ITU-T E.123/E.164 standards, and HAKOM regulation details for telecom professionals.

Explore Cuba's phone number system: formats, dialing codes, & validation. Understand landline (7/8-digit, `[2-7]XXXXXXX`), mobile (`5XXXXXXX`) formats. Includes regex for validation & ITU-T E.164 compliance. Learn about +53 country code, prefixes, & telecom regulations.

Explore Cura??ao's (+599) phone number formats: a technical guide for developers/telecom experts. Understand 7-digit number structure (NXX XXXX), dialing, and ITU-T E.164. Includes regex for validation (e.g. ^\+599 9[0-9]{2} [0-9]{4}$), operator ranges, and dialing procedures. No number portability.

Explore Cyprus phone number formats (+357): structure, dialing codes, and validation. Understand 8-digit number allocation, including geographic (2[2-6]XXXXXX) & mobile (9[6-7]XXXXXX). Includes regex for validation and ITU-T standards compliance.

Explore Czechia's (+420) phone number system: formats, area codes, & validation. Understand 9-digit structure, landline (2XX XXX XXX), mobile (60X/7XX XXX XXX) patterns. Includes regex for validation.

DRC phone number format guide: structure, area codes, validation. Covers landline (0X XXX XXXX), mobile (0XX XXX XXXX) formats. Includes regex (e.g. ^0[89]\d{8}$), dialing codes (+243), ITU-T E.164 adherence, and operator prefixes for parsing/validation.

Explore Denmark's phone number system (+45): 8-digit format, number categories (geographic, mobile, toll-free 80), and international dialing. Includes validation regex: `^[2-9]\d{7}$`. Learn number portability rules and emergency numbers like 112, 114. Essential for developers.

Understand Djibouti's (+253) phone number system: 8-digit formats for fixed (21X{6}) and mobile (77X{6}) lines. Includes number portability, dialing codes, and validation regex like ^\+25377\d{6}$. Conforms to ITU-T E.164.

Explore Dominica's (+1 767) phone number format: fixed-line (767-2XX-XXXX), mobile (767-[2-9]XX-XXXX). Includes validation regex (e.g., ^7672[0-9]{6}$), dialing codes, and operator ranges. Learn about number portability and the DTA regulatory body. Perfect for developers needing precise telecom data.

Explore the Dominican Republic's (+1) phone number format: a technical guide covering area codes (809, 829, 849), landline/mobile patterns, and validation. Includes regex for formats like +1 800-XXX-XXXX (toll-free) and dialing procedures, crucial for developers needing E.164 compliance.

Explore the E.164 standard for international phone numbers, crucial for global telecom interoperability. Learn E.164 structure: CC (1-3 digits), NDC, & SN. Validate numbers using regex: /^\+[1-9]\d{1,14}$/. Implement best practices & avoid common issues. Libraries like `phone` & `libphonenumber-js` covered.

Understand Ecuador phone number formats (+593): area/mobile codes, subscriber numbers, and validation. Includes E.164 format, regex for 7/8 digit validation, and landline (2-7) vs mobile (9X) prefixes. Essential for developers integrating Ecuadorian numbers; covers number portability.

Explore Egypt's phone number system: formats, area codes, and validation. Includes landline (Cairo '2', Alexandria '3'), mobile prefixes (Vodafone '10', Etisalat '11'). Covers ITU-T E.164 compliance, mobile number portability (MNP) & dialing guides. Essential for developers & telecom professionals.

Explore El Salvador's 8-digit phone number system (+503): formats, dialing, & validation. Understand landline (2XXXXXXX), mobile (6/7XXXXXXX) prefixes. Includes regex for validation & MNP insights.

Understand Equatorial Guinea's (+240) phone number system. This guide details formats (landline: 33[0-24-9]X[46]X{4}, mobile: 222/55X{6}), validation via regex, and network integration. Includes JavaScript validation code and regulatory insights for developers.

Understand Eritrean phone number formats (+291) with this technical guide. Learn landline (e.g., +291 1 XXXXXX for Asmara) & mobile (e.g., +291 7XX XXXX) patterns. Includes validation regex & formatting code for developers. Valid 7-digit numbers.

Explore Estonia phone number formats (+372): structure, validation, and implementation. Understand mobile (5XXX XXXX), landline (3XXX XXXX), & VoIP (6XXX XXXX) patterns. Includes regex for validation and E.164 storage best practices, plus portability & GDPR considerations for developers.

Eswatini phone number deep-dive: formats, area codes (+268), & validation. Learn mobile (7[6-9]\d{6}), landline (23[2-5]\d{6}), toll-free (0800\d{4}) patterns. Includes emergency numbers (999, 933, 977), regex & code examples for robust implementation.

Explore Ethiopia's phone number system: formats, area codes (Addis Ababa 011, Dire Dawa 025), and validation. Includes mobile (091x, 094x), fixed-line patterns, JavaScript regex examples. Essential for developers integrating with Ethiopian telecom services; covers Ethio Telecom, Safaricom, and emergency numbers (911).

Explore Falkland Islands phone number formats (+500): a technical guide for developers. Understand 5-digit number structure, Stanley's 2XXXX range, and mobile 5XXXX prefixes. Includes JavaScript validation regex and dialing codes for robust app integration.

Faroe Islands phone number deep-dive: formats, area codes (+298), & validation. Includes landline/mobile patterns (prefixes 2-4 vs. 5-9), emergency routing (112, 113, 1870), JavaScript validation examples, and telecom infrastructure details (4G/LTE 98% coverage).

Explore Fiji phone number formats (+679): a technical guide covering validation and structure. Understand 7-digit number ranges ([3-6] for fixed, [7-9] mobile), plus JavaScript validation. Essential for developers integrating Fiji telecom services.

Explore Finland phone number formats (+358): structure, area codes (e.g., Helsinki '09'), and validation. Includes mobile/landline regex, portability, and carrier codes (990-999). Learn to validate Finnish numbers with JavaScript examples and handle number portability.

Explore France's phone number system: formats (+33 X XX XX XX XX), validation rules, and ARCEP regulations. Understand geographic (01-05), mobile (06-07), and VoIP (09) number types. Includes JavaScript validation snippets and emergency numbers like 112 and 114.

Explore French Guiana's phone number system: formats, area codes (+594), & validation. Includes fixed-line (0594), mobile (0694) details, & regex examples. Learn E.164 standardization, number portability (RIO codes: PP-YYYYMMDD-NNNNN), & ARCEP compliance for developers.

This guide details French Polynesia's phone number formats, validation & implementation. Understand 8-digit number structure, including landline (4XXXXXXX) & mobile (8[7|9]XXXXXX). Includes regex for validation and E.164 storage best practices.

Validate Gabonese phone numbers (+241) using regex and E.164 format. Understand 9-digit structure post-April 2025, service type indicators (1,6,7), and ARCEP regulations. Includes Javascript examples for local/international format conversion and validation regex: ^(?:(?:\+|00)241|0)([1-7])\d{7}$.

Gambia phone number deep-dive: formats, validation, and telecom insights. Understand +220 number structure, including mobile (7-9XXXXXX) & landline (4-5XXXXXX). Implement E.164 validation using regex. Covers operator details and emergency number handling (1XX).

Explore Georgia's (+995) phone number formats, validation, and implementation. Understand landline (032, 043), mobile (5XX), & special numbers. Includes regex for validation & E.164 formatting. Essential for developers integrating Georgian numbers; covers number portability.

Explore Germany's phone number format (+49): area codes (2-5 digits), subscriber numbers (3-13 digits), and validation. Understand geographic (0XX[X]), mobile (01XX), and service numbers. Includes regex for validation and handling mobile number portability (MNP).

Explore Ghana's phone number system: formats, area codes (+233), & validation. Understand landline (0322001234), mobile (0241234567) patterns. Includes regex & JavaScript validation examples.

Explore Gibraltar's phone number formats (+350) with validation rules and regex. Understand landline (200, 222, 225 prefixes), mobile (5[4-8]XXXXXX), and special service numbers. Includes validation code and emergency number details (999, 112). Learn number portability and GRA regulations.

Explore Greece's phone number system (+30): architecture, CRDB, and EETT compliance. Learn number portability's 3-tier architecture. Includes API/DB integration, validation (<2 hours), porting (<3 days), and MSISDN format. Ideal for developers needing technical integration details.

Explore Greenland's phone number system (+299): format, validation, and dialing. Understand the 6-digit numbering plan, landline (1, 2, 3), mobile (4, 5) prefixes. Includes international calling (+299), ITU-T E.164 compliance, and JavaScript validation examples.

Understand Grenada phone number formats (+1 473) for reliable telecom integration. Learn landline (473-2XX-XXXX), mobile (473-4XX/5XX-XXXX) patterns and validation. Includes regex: `^473[45][0-9]{6}$`, portability, E.164 formatting, and security best practices.

Explore Guadeloupe phone number formats (+590) and validation. Understand landline (590), mobile (690) area codes. Includes regex validation `/^\+590(590|690|800|89\d)\d{6}$/`, dialing, number portability (10-day transfer), and database schema examples for developers.

This guide details Guam phone number formats (+1 671), validation, and dialing. Understand NANP structure, regex for validation (e.g., `^\+1 671 [2-9][0-9]{2} [0-9]{4}$`), number portability, and telecom operators. Includes E.164 compliance and porting timelines (1-4 days).

Explore Guatemala's phone number system: formats, area codes (+502), and validation. Understand landline (2XXXXXXX, 6XXXXXXX, 7XXXXXXX) & mobile (3-5XXXXXXX) patterns. Includes regex validation examples and regulatory insights.

Guernsey phone number deep-dive: formats, area code (1481), and validation. Learn landline (+44 1481 XXXXXX) & mobile (+44 7XXX XXXXXX) patterns. Includes JavaScript validation regex and dialing codes.

Explore Guinea's phone number system: formats (+224), area codes, & validation. Learn landline (3XXXXXXX) & mobile (6XXXXXXX) patterns. Includes JavaScript validation regex.

Explore Guinea-Bissau phone number formats (+245): an 8-digit system without area codes. Includes mobile (95/96/97XXXXXX), landline (44XXXXXX) patterns, and int'l dialing. Plus regex for validation and network coverage details for developers.

Explore Guyana phone number formats (+592): a technical guide covering 7-digit NSN structure, dialing codes, and validation. Includes regex for landline (2XXXXXX), mobile (6XXXXXX, 7[0-5]XXXXX), toll-free (800XXXX). Learn E.164 best practices.

Explore Haiti's phone number system (+509): formats, validation (regex: /^2[2-9]\d{5}$/, /^[34]\d{6}$/), and dialing. Covers landline (2[2-9]XXXXXX), mobile ([34]XXXXXX). Includes emergency numbers (114, 115, 116) and regulatory details for Haitian telecom.

Honduras phone number guide: formats, area codes (+504), & validation. Understand 8-digit NSN structure since 2004. Includes regex for landline (2XXX XXXX), mobile ([3,7-9]XXX XXXX), & toll-free (8002 XXXX) validation. E.164 storage & number portability details provided.

Explore Hong Kong phone number formats (+852): structure, area codes, and validation. Learn fixed-line (2/3 prefix), mobile (4-9 prefix) patterns, and number portability (MNP/FLNP). Includes a TypeScript validation example and regex for developers. OFCA oversight ensures compliance.

Explore Hungary's phone number formats, area codes, and validation rules. Understand geographic (06 1 XXX XXXX for Budapest) & mobile (+36 20/30/70) patterns. Includes regex for validation, AML emergency services details (??? 50m accuracy), and NMHH compliance guidelines.

Understand Iceland's phone number system: format (+354), validation & structure. Covers 7-digit numbers, mobile (6/7/8XXXXXX), geographic (4/5XXXXXX). Includes regex for validation.

Explore India's phone number system: E.164 format (+91[1-9]\d{9}), validation (regex examples in Javascript), and area code usage. Includes emergency numbers (112, 100, 101), telecom market statistics ($48.61B revenue in 2025), and TRAI regulatory overview.

Guide to Indonesian phone number formats (+62): area codes, validation. Learn mobile/landline patterns, regex (e.g., `^08[1-9][0-9]\d{7,8}$`), error handling. Includes validation rules based on Kemenkominfo regulations. Essential for developers targeting Indonesia's growing telecom market (projected to reach $14.36B by 2029).

Explore Iran's phone number formats (+98): landline (021 XXXXXXXX), mobile (09XX XXXXXXX), MVNO (099X XXXXXXX). Includes area codes (e.g., Tehran: 021), premium-rate prefixes (909, 7020), plus validation regex and emergency numbers (110, 115, 125). Learn number structure and validation.

Comprehensive guide to Iraq phone number formats (+964): structure, validation, and dialing. Includes area codes (Baghdad '01', Basra '04'), mobile prefixes ('075', '077', '078', '079', '076'), and regex for developers. Learn landline (6-7 digits) and mobile (7 digits) validation.

Explore Ireland's phone number system: formats, area codes (+353), & validation. Includes landline (01, 021, 091 examples), mobile (08[3-9]XXXXXXX), & special service formats. Regex & formatting code snippets provided for robust validation. Learn E.164 storage & ComReg compliance.

Explore Isle of Man phone number formats (+44): validation, area codes (1624), and mobile prefixes (7624). Learn E.164 standards, regex for validation, and number portability nuances. Implement robust validation and avoid common pitfalls.

Explore Israeli phone number formats (+972): landline (02-XXXXXXX), mobile (05X-XXXXXXX). Understand area codes, validation with regex (e.g., /^0([2-9])\d{7}$/), and dialing rules. Learn to validate 7-8 digit subscriber numbers and handle international calls.

Comprehensive guide to Italy phone number formats (+39): landline (0xx XXXXXXX), mobile (3XY XXXXXXX), special services (800, 89X). Includes validation regex, E.164 formatting, number portability, and AGCOM database usage. Perfect for developers needing Italian number parsing/validation. 155 chars

This guide details Jamaica's phone number format (+1), area codes (876, 658), and validation. Learn E.164 normalization, regex for validation, and number portability. Includes Javascript examples and covers fixed-line/mobile patterns for developers needing precise telecom data.

Explore Japan's phone number system: formats, area codes, & validation. Understand `0XX-XXXX-XXXX` (geographic), `0Y0-XXXX-XXXX` (mobile) patterns. Includes carrier integration, E.164, number portability, SMS (Shift-JIS 70 char limit), emergency services (110, 119, 171) & validation best practices.

Explore Jersey phone number formats (+44): landline (01534 XXXXXX), mobile (07XXX XXXXXX), and special numbers (0800, 03XX, 09XX). Includes validation regex and calling codes. Learn number portability and telecom evolution impacting number handling.

Explore Jordan's (+962) phone number formats, validation rules, and telecom landscape. Understand mobile (07x) & landline patterns with regex examples. Learn TRC compliance for apps. Includes 911 emergency services & area codes (02, 03, 05, 06). Validate numbers effectively.

Explore Kazakhstan phone number formats (+7 & +997): structure, area codes (710-733 examples), and validation. Includes regex/JavaScript snippets for mobile (70[0-8], 77[1-8]) & landline. E.164 format & dual validation explained.

Explore Kenya's phone number system: formats, area codes (+254), & validation. Understand 9-digit NSN structure, landline (020, 041) & mobile prefixes (07, 01). Includes MNP, regex, & emergency number handling for robust telecom apps.

Kiribati phone number deep-dive: formats, validation & ITU-T E.164 compliance. Covers landline (+686[2-4]\d{4,5}), mobile (+6866\d{6}), & emergency (999). Includes JavaScript validation regex & CCK regulatory details.

Kosovo phone number deep-dive: format, area codes (+383), & validation. Understand 8-digit NSN structure, landline (38/39), mobile (43/44/45/49) prefixes. Includes regex for validation, number portability, and formatting best practices.

Validate Kuwaiti phone numbers with this guide, covering E.164 format, landline (2XXXXXXX), mobile (5/6/9XXXXXXX) & corporate (18XXXXX) patterns. Includes regex for validation, MNP handling, and CITRA compliance. Learn to sanitize input and handle +965.

Explore Kyrgyzstan phone number formats (+996): structure, area codes, & validation. Understand geographic (312 for Bishkek), mobile (7XX), & toll-free patterns. Includes E.164 storage, regex examples, and implementation for developers needing reliable Kyrgyz number handling.

Explore Laos phone number formats (+856) with this technical guide. Learn E.164 structure, landline (2X{7}), mobile (20[2-9]X{6,7}) patterns, & validation regex. Includes normalization and error handling for developers.

Explore Latvia's phone number system (+371): formats, validation & technical details. Understand 8-digit structure, mobile (2XXXXXXX), fixed-line (6XXXXXXX) patterns. Includes Javascript regex for validation and E.164 formatting. Learn about key operators and 5G deployment.

Comprehensive guide to Lebanon phone number formats (+961): structure, validation, and implementation. Includes landline/mobile prefixes (03, 70, 71, 01, 04-07, 09), regex for national/international formats, and number portability best practices. NSN length: 8 digits.

Lesotho phone number deep-dive: format, area codes (+266), & validation. Covers ITU-T E.164 structure, service type indicators (2=landline, 5/6=mobile, 8=toll-free), & regex. Includes Javascript validation examples and implementation guidelines.

Explore Liberia's phone number formats (+231), validation rules, and structure. Understand mobile (77/88X XXX XXXX), fixed-line (2X XXX XXXX) patterns. Includes regex for validation and E.164 best practices. Targetting Liberia's 4.77 million mobile connections.

Explore Libya's phone number formats (+218): structure, validation, and telecom infrastructure. Understand 8-9 digit NSN lengths, mobile prefixes (091-096), and landline area codes (2-8). Includes regex for validation and network considerations for developers.

This guide details Liechtenstein's phone number format (+423), structure, and validation. Learn number categories (landline 2XXXXXX, mobile 6/7XXXXXX), and regex for validation. Includes domestic/international calling codes and regulatory insights.

Lithuanian phone number format explained, covering the +370 country code and transition from '8' to '0' national prefix by 2025-12-01. Includes validation regex, Python examples, and handling 9-digit numbers during the dual prefix period. Learn about area codes and regulatory compliance.

Comprehensive guide to Luxembourg phone numbers (+352): formats, validation, and structure. Understand mobile (6/7 prefixes), toll-free (800), & premium (90) numbers. Includes JavaScript validation regex: `^(?:6[269][18]\d{6}|7[189]\d{6})$`. Learn number portability via GIE FNP.

Explore Madagascar's phone number system: formats, area codes (+261), & validation. Learn mobile (32, 33, 34 prefixes) & fixed-line (20 prefix) patterns. Includes validation regex `^3[2-4,7-9]\d{7}$`, emergency codes (17, 18, 124), and number portability insights.

Explore Malawi's phone number formats (+265): dialing codes, validation, and technical details. Understand mobile (088/099 prefixes) & landline patterns. Includes regex for validation and MNP insights, crucial for developers integrating with Malawi's telecom infrastructure. Emergency numbers: 997, 998, 999.

Explore Malaysia phone number formats (+60): validation regex, area/mobile prefixes. Understand fixed line (03-XXXX XXXX), mobile (01X-XXXX XXXX) patterns. Includes E.164 conversion and implementation for robust applications.

Understand Maldives phone number formats (+960) with this technical guide. Learn 7-digit number structure, validation using regex (e.g., ^[3|6|7|9]\d{6}$), and handle number portability. Includes number type prefixes (3, 6, 7, 9) and emergency codes (119, 102, 118).

Explore Mali phone number formats (+223): an in-depth guide covering landline (8 digits) & mobile (6/7/9 prefixes) dialing. Includes international call procedures (011/00 + 223), emergency numbers (112, 17, 15, 18), operator details (Orange, Malitel), and regulatory insights for developers.

Explore Malta phone number formats (+356): validation, dialing codes, & structure. Learn E.164 standard implementation, regex for pattern matching (e.g., mobile: ^(?:\+356)?[79]\d{7}$). Includes normalization JS code & error handling for robust applications.

Understand Marshall Islands phone number formats (+692): structure, validation, and implementation. Includes landline (2XX XXXX), mobile (3XX XXXX) examples. Learn regex for validation and E.164 formatting. Optimize apps for 4G/LTE, satellite latency (250-500ms), and bandwidth constraints.

Understand Martinique phone number formats (+596) for reliable application integration. Explore landline (596 3-7XXXXXXX) & mobile (696) patterns with validation regex. Includes number portability, formatting examples, and emergency number handling for developers. ARCEP regulatory context covered.

Explore Mauritania's (+222) phone number system: formats, validation, and implementation. Understand 8-digit NSN structure, landline (250, 451), & mobile prefixes. Includes JavaScript validation and formatting code snippets.

Explore Mauritius phone number formats (+230): validation rules, area codes, and technical implementation. Learn landline (2XXX XXXX), mobile (5XXX XXXX) & special service number regex. Includes E.164 normalization, MNP, ICTA compliance, and scalable database schema examples.

Explore Mayotte phone number formats (+262 country code) and validation techniques. Learn E.164 conversion, regex patterns (landline: 269, mobile: 639), and error handling. Includes JavaScript code snippets for formatting from local formats to +262XXXXXXXX.

Explore Mexico phone number formats (+52): validation, area codes (2-3 digits), & structure. Understand mobile ('1' identifier) vs. landline. Includes regex examples and 2019 reforms.

Explore Micronesia's (+691) phone number system: formats, validation, and dialing. Understand fixed-line (XXX XXXX) & mobile (7XX XXXX) patterns. Includes regex for validation and E.164 formatting best practices for developers. Learn about FSMTC compliance and future considerations.

Explore Minnesota's phone number system: formats, area codes, & validation. Understand NANP structure (+1 country code), number portability, & the 924 overlay (by 2025). Includes regex validation snippets & E.164 best practices; crucial for developers/telecom.

Explore Moldova's phone number system: formats (+373 country code), area codes (2X, 6X), & validation. Understand mobile/landline patterns, special services (800, 90X), & regex. Includes number portability, ANRCETI regulations, and JavaScript validation examples.