Networking & Web

Phone Number Parser

Paste a phone number in almost any format to extract its country, dial code, and standardized E.164 representation.

Free & unlimitedRuns in your browserNo sign-up required

Phone number

Digits only15558675309

E.164 format+15558675309

Formatted+1 (555) 867-5309

Country (from prefix)United States / Canada

Length11 digits

Phone Number Formats and Standards

Phone numbers follow country-specific formats and international standards that determine how they should be stored, displayed, and dialed.

E.164 international format

E.164 is the ITU-T recommendation for international telephone numbers. The format is +[country code][subscriber number], with no spaces or special characters, up to 15 digits total. Example: +12125551234. This format is mandatory for SMS APIs (Twilio, AWS SNS) and VoIP routing.

Storing phone numbers in databases

Always store phone numbers in E.164 format in databases, not in local display format. Display formatting (spaces, dashes, parentheses) should be applied at render time based on the user's locale. This prevents duplicate entries for the same number written differently and enables reliable searching.

Validation considerations

A valid E.164 number has 1–15 digits after the + prefix. Country codes are 1–3 digits long. Validating beyond this requires a database of valid number ranges (like libphonenumber by Google). Area code validation (e.g., US area codes that don't exist) requires country-specific knowledge.

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How it works

Three steps, no setup

Paste a phone number

With or without a country code, spacing, or punctuation.

Get the parsed breakdown

Country, dial code, national significant number, and digit count.

Copy the E.164 format

The internationally standardized format required by most SMS and calling APIs.

Common questions

Frequently asked questions

What is E.164 format?

It is the international standard format for phone numbers — a plus sign, country code, and subscriber number with no spaces or punctuation, e.g. +14155552671.

Which countries are supported?

Common formats are recognized across major regions including the US, UK, India, Germany, France, and Japan.

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Networking & Web

Phone Number Parser

Phone Number Formats and Standards

E.164 international format

Storing phone numbers in databases

Validation considerations

Three steps, no setup

Paste a phone number

Get the parsed breakdown

Copy the E.164 format

Frequently asked questions

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Phone Number Formats and Standards

E.164 international format

Storing phone numbers in databases

Validation considerations