International Phone Validator & E.164 Formatter
ITU-T E.164ITU-T E.164 compliant international phone number verification and formatting tool. Normalizes messy input into standard E.164, identifies country prefixes, mobile vs fixed-line types, and clickable RFC 3966 tel: URIs.
Interactive Tool Console
Client-Side Execution • Runs in browserConforms to ITU-T E.164 international standard.
Live API Integration Public Edge API
Call this tool in your codebase or backend services directly via REST API.
curl -X GET "https://findfreeapi.com/api/v1/tools/phone-validate?phone=+905321234567"Key Standards & Highlights
Frequently Asked Questions
What is E.164 format and why is it important?
E.164 is the ITU-T international public telecommunication numbering plan. It standardizes phone numbers into a consistent string starting with + followed by country code, ensuring flawless delivery across global SMS and telephony networks.
How does the system differentiate mobile from landline numbers?
National numbering plans assign distinct prefixes to mobile carriers (e.g., 5xx in Turkey, 7xxx in the UK, 15/16/17xx in Germany), enabling accurate distinction between cellular and landline endpoints.
How are messy phone formats normalized?
The validator strips extraneous punctuation (spaces, dashes, parentheses), handles international exit codes (00 or 011), and restructures digits into the canonical +[country][number] E.164 string.
Popular Free APIs to Pair With This Tool
Verified free REST APIs that seamlessly complement this utility to accelerate your development workflow.
Zero-dependency ITU-T E.164 international phone number validator, country detector, and national format normalizer.
Küresel telefon doğrulama servisi
Telefon numarası ve operatör sorgusu
Küresel telefon numarası doğrulama
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