What is the regex for us phone number?

The regex pattern for us phone number is `^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$`. This pattern validates us phone number in common formats.

How do I use this regex in JavaScript?

In JavaScript, create the regex with `const regex = /^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/;` and test with `regex.test(yourValue)`. It returns `true` if the value matches.

How do I use this regex in Python?

In Python, use `import re; re.match(r'^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$', value)`. The raw string prefix (`r`) prevents Python from interpreting backslashes as escape characters.

Is this regex case-sensitive?

By default, yes. To make it case-insensitive, add the `i` flag in JavaScript (`/^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/i`) or use `re.IGNORECASE` in Python.

Regex for US Phone Number

Regex Pattern

^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$

US phone number in common formats

Quick Answer

The regex pattern for us phone number is `^$?([0-9]{3})$?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$`. US phone number in common formats. This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

Input	Result
(555) 123-4567	✓ Matches
555-123-4567	✓ Matches
5551234567	✓ Matches
555.123.4567	✓ Matches
555-12-34567	✗ No match
+1 555 123 4567	✗ No match
123-456	✗ No match

Code Examples

javascript

const regex = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/;
const isValid = regex.test(value);

python

import re
pattern = r'^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/', $value)) {
    echo "valid";
}

java

String pattern = "^\\(?([0-9]{3})\\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

Related Regex Patterns

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Indian mobile number with optional +91 country code

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UK mobile number with optional +44 country code

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Validates a standard email address format

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RFC 5322 compliant email validation with label length limits

URL (HTTP/HTTPS)

Validates HTTP and HTTPS URLs