Regex for Phone Number (US)

Validates US phone numbers in various formats: (555) 123-4567, 555-123-4567, 5551234567.

Pattern

/^$?[2-9]\d{2}$?[-.\s]?\d{3}[-.\s]?\d{4}$/

Live Tester

Enter a string to test

Examples

✓ (555) 123-4567

✓ 555-123-4567

✓ 5551234567

✗ (055) 123-4567

✗ 123-4567

✗ 555-1234-567

Pattern Breakdown

^$?[2-9]\d{2}$? — area code with optional parentheses

[-.\s]? — optional separator

\d{3} — exchange code (3 digits)

[-.\s]?\d{4}$ — separator + subscriber number (4 digits)

Code Snippets

Javascript

const regex = /^\(?[2-9]\d{2}\)?[-.\s]?\d{3}[-.\s]?\d{4}$/;
regex.test("(555) 123-4567"); // true

Python

import re
pattern = r"^\(?[2-9]\d{2}\)?[-.\s]?\d{3}[-.\s]?\d{4}$"
bool(re.match(pattern, "(555) 123-4567"))  # True

Php

$pattern = '/^\(?[2-9]\d{2}\)?[-.\s]?\d{3}[-.\s]?\d{4}$/';
preg_match($pattern, "(555) 123-4567"); // 1

Related Patterns

Email Address /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/ URL /^https?:\/\/(www\.)?[a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([a-zA-Z0-9()@:%_+.~#?&/=-]*)$/ Phone Number (International) /^\+?[1-9]\d{1,14}$/ Phone Number (EU) /^\+?[1-9][0-9]{0,3}[\s.-]?$?[0-9]{1,5}$?[\s.-]?[0-9]{1,5}[\s.-]?[0-9]{1,5}$/ IPv4 Address /^((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)$/ IPv6 Address /^([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}$/

Frequently Asked Questions

What is the regex for Phone Number (US)?▾

The regex pattern for Phone Number (US) is /^$?[2-9]\d{2}$?[-.\s]?\d{3}[-.\s]?\d{4}$/. Validates US phone numbers in various formats: (555) 123-4567, 555-123-4567, 5551234567.

How do I use the Phone Number (US) regex in JavaScript?▾

In JavaScript you create the pattern with a regex literal or the RegExp constructor and call .test() to check a string against it. A ready-to-copy example is shown in the Code Snippets section above, alongside Python and PHP versions.

What does the Phone Number (US) pattern match?▾

It matches strings like (555) 123-4567; it rejects strings like (055) 123-4567. See the Examples section above for the full list of matching and non-matching cases.