Regex for UK mobile number
UK mobile in 07XXX or +44 7XXX format.
The UK mobile number regex is ^(\+44\s?|0)7\d{3}\s?\d{6}$ — copy it below, or open it in the explainer for a token-by-token breakdown.
The pattern
^(\+44\s?|0)7\d{3}\s?\d{6}$
What it matches
07911 123456+44 7911 123456+447911123456
What it doesn't match
08911 123456+44 1234 56789007 9111 23456
Notes & gotchas
UK mobiles start with 07 (or +44 7). All UK mobile numbers are 11 digits including the leading 0, or 12 with +44 prefix.
Code in your language
Use the explainer's Code tab to generate ready-to-paste snippets in JavaScript, Python, Java, .NET, Go, Ruby, and PHP for this pattern.
Open in explainer →Token-by-token breakdown
Every part of the pattern, left to right:
| Token | Meaning |
|---|---|
^ | start of string (or line in multiline mode) |
( | start of a capturing group |
\+ | literal “+” |
44 | literal text “44” |
\s? | optional (zero or one): whitespace |
| | OR — try the alternative |
0 | literal text “0” |
) | end of group |
7 | literal text “7” |
\d{3} | exactly 3 times: digit (0–9) |
\s? | optional (zero or one): whitespace |
\d{6} | exactly 6 times: digit (0–9) |
$ | end of string (or line in multiline mode) |
About this pattern
UK identifier formats are set by HMRC, Royal Mail, and the BACS payments scheme. The regex here matches the format; full validation may need an additional checksum or lookup.
Quick usage in different languages
This exact pattern — with the correct escaping and idioms for each language:
- JavaScript:
/^(\+44\s?|0)7\d{3}\s?\d{6}$/.test(value) - Python:
re.match(r"^(\+44\s?|0)7\d{3}\s?\d{6}$", value) - Java:
Pattern.compile("^(\\+44\\s?|0)7\\d{3}\\s?\\d{6}$").matcher(value).matches() - C# / .NET:
Regex.IsMatch(value, @"^(\+44\s?|0)7\d{3}\s?\d{6}$") - Go:
regexp.MustCompile(`^(\+44\s?|0)7\d{3}\s?\d{6}$`).MatchString(value) - Ruby:
/^(\+44\s?|0)7\d{3}\s?\d{6}$/.match?(value) - PHP:
preg_match('~^(\+44\s?|0)7\d{3}\s?\d{6}$~', $value)
The explainer’s Code tab regenerates these for any pattern you paste, and the downloadable cheat sheet bundles the breakdown, all seven snippets, and the pitfalls below onto one printable page.
Common pitfalls
- Anchored to the whole string. This pattern uses ^ and $, so it requires the entire input to match. To find it inside a longer text, drop the anchors and use the global (g) flag.
- Escape it correctly per language. In Java and JavaScript strings each backslash must be doubled (\\d); in Python, Go, and C# use raw/verbatim strings so the backslashes survive.
- Validate beyond format. Matching the format doesn't guarantee the value is real. Confirm the uk mobile number against a source of truth (database, API, or checksum) where it matters.
Standards & sources
This pattern is based on the following authoritative specification(s) and issuing authorities. Formats can change — always confirm against the primary source.
Related patterns
More patterns in the United Kingdom 🇬🇧 category:
See also
Browse all 300 patterns in the library, or open this regex in the interactive explainer to see a token-by-token breakdown, test against custom input, and generate code in seven languages.