BytePane

Phone Number (US) Regex Pattern

Matches US phone numbers in common formats including with/without country code, parentheses, dashes, dots, and spaces.

Validation
Beginner
Difficulty
Universal
Language
none
Flags
// Regular Expression
/^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$/

Live Regex Tester

Pattern Breakdown

^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$
Character class [ ]
Group ( )
Quantifier { }
Anchor ^ $
Repetition * + ?
Escape \
Alternation |
Any char .

Code Examples

JavaScript

const regex = /^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$/;
const test = "(555) 123-4567";
console.log(regex.test(test)); // true

// Extract matches
const matches = test.match(regex);
console.log(matches);

Python

import re

pattern = r'^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$'
test = "(555) 123-4567"
match = re.search(pattern, test)
print(match)  # Found!

Go

package main

import (
    "fmt"
    "regexp"
)

func main() {
    re := regexp.MustCompile(`^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$`)
    fmt.Println(re.MatchString("(555) 123-4567")) // true
}

Common Use Cases

Phone input validationcontact formsCRM data cleaning

Match Examples

InputResult
(555) 123-4567Match
123-45-678No Match

About the Phone Number (US) Regex

Matches US phone numbers in common formats including with/without country code, parentheses, dashes, dots, and spaces.

Regular expressions (regex) are powerful pattern matching tools used across virtually all programming languages. The phone number (us) pattern is classified as beginner difficulty in the validation category. It works in all major programming languages.

When using this regex, always consider edge cases and test thoroughly with real-world data. Use the interactive tester above to validate the pattern against your specific inputs before deploying to production.

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Frequently Asked Questions

What is the Phone Number (US) regex pattern?

Matches US phone numbers in common formats including with/without country code, parentheses, dashes, dots, and spaces.

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

Use the pattern /^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$/ in your code. In JavaScript: new RegExp('^(\+1)?[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}$', ''). Test it above with your own input.

What does this Phone Number (US) regex match?

This pattern matches: "(555) 123-4567". It does NOT match: "123-45-678". Phone input validation, contact forms, CRM data cleaning.

Is the Phone Number (US) regex beginner-friendly?

This pattern is rated Beginner. It uses basic regex syntax and is easy to understand.

What languages support the Phone Number (US) regex?

This pattern works in all major programming languages including JavaScript, Python, Java, C#, Go, Ruby, PHP, and more. Syntax may vary slightly between regex engines.

Can I modify the Phone Number (US) regex for my use case?

Yes! Use the interactive tester above to modify the pattern and test with your own data. Common modifications include making it case-insensitive (add 'i' flag), matching globally (add 'g' flag), or adjusting character classes.

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