Question 1

What formats does the phone number parser support?

Accepted Answer

The parser supports all major international phone number formats including E.164 (+12025550100), international (+1 202-555-0100), national (202-555-0100), and RFC3966 (tel:+1-202-555-0100). You can enter numbers with or without country code — if you omit the country code, set a default country to help the parser interpret the number correctly.

Question 2

What is the difference between E.164 and international format?

Accepted Answer

E.164 is the strictest machine-readable format: a plus sign followed by only digits, no spaces or dashes (e.g. +12025550100). International format is the human-readable equivalent with spaces and punctuation (e.g. +1 202-555-0100). E.164 is required by most telephony APIs (Twilio, AWS SNS, etc.), while international format is for display.

Question 3

What phone number types can be detected?

Accepted Answer

The parser can identify: MOBILE, FIXED_LINE, FIXED_LINE_OR_MOBILE, TOLL_FREE, PREMIUM_RATE, SHARED_COST, VOIP, PERSONAL_NUMBER, PAGER, UAN, VOICEMAIL, and UNKNOWN. Type detection accuracy varies by country — some countries (like the US) cannot distinguish mobile from fixed-line numbers without carrier lookup.

Question 4

What is the difference between 'valid' and 'possible' for a phone number?

Accepted Answer

A 'possible' number has the right length for a phone number in that country but may not be assigned. A 'valid' number passes full validation including format rules, prefix checks, and length — it is far more likely to be a real, dialable number. Always use validity (not just possibility) when filtering user-submitted phone numbers.

bezplatné nástroje pro webové vývojáře

Parser telefonních čísel

Ověření

Podrobnosti

Jak funguje parser telefonních čísel

Co nástroj dělá

Běžné případy použití pro vývojáře

Formáty telefonních čísel

Běžné nástrahy a okrajové případy