United Kingdom Phone Number Format
Country code +44 · ISO GB
How to format, dial, and validate United Kingdom phone numbers, with live examples.
Country Code
+44
National Prefix
0
International Prefix
00
Mobile Portability
Yes
Try it now
Pre-filled with a valid fixed line number for United Kingdom. Edit it and click "Try It" to see the parsed result.
Number Types & Example Formats
Each United Kingdom phone-number type supported by libphonenumber, with a real example formatted three ways.
| Type | Length | National | International | E.164 |
|---|---|---|---|---|
| Fixed Line | 9–10 digits | 0121 234 5678 | +44 121 234 5678 | +441212345678 |
| Mobile | 10 digits | 07400 123456 | +44 7400 123456 | +447400123456 |
| Pager | 10 digits | 076 4012 3456 | +44 76 4012 3456 | +447640123456 |
| Personal Number | 10 digits | 070 1234 5678 | +44 70 1234 5678 | +447012345678 |
| Premium Rate | 7 or 10 digits | 0901 234 5678 | +44 901 234 5678 | +449012345678 |
| Toll Free | 7, 9, or 10 digits | 0800 123 4567 | +44 800 123 4567 | +448001234567 |
| UAN | 10 digits | 055 1234 5678 | +44 55 1234 5678 | +445512345678 |
| VoIP | 10 digits | 056 1234 5678 | +44 56 1234 5678 | +445612345678 |
How to Dial United Kingdom Numbers
From abroad
Dial +44 followed by the national number, dropping any leading 0.
Within United Kingdom
Dial 0 before the local number to make a domestic call.
Dialing out of United Kingdom
Dial 00 followed by the destination country code and number.
Area Codes
Browse United Kingdom area codes with cities, timezones, and example numbers for each.
Validate a United Kingdom Number with the API
Send the number to the free libphonenumber API to get the parsed country, type, formatting, and validity.
curl https://libphonenumberapi.com/api/phone-numbers/+441212345678Frequently Asked Questions
What is the country code for United Kingdom?
└ The international country code for United Kingdom is +44. Use this prefix when dialing United Kingdom numbers from another country.
How long is a United Kingdom phone number?
└ United Kingdom phone numbers are typically 9–10 digits, not including the +44 country code.
How do I dial a United Kingdom phone number from abroad?
└ From abroad, dial +44 followed by the national number, dropping any leading 0. Within United Kingdom, dial 0 before the local number.
How do I validate a United Kingdom phone number programmatically?
└ Send a GET request to https://libphonenumberapi.com/api/phone-numbers/<number>. The free libphonenumber API returns the parsed country, format, type, and validity for any number — no API key required.
Other Countries with Dialing Code +44
These countries share the same international dialing prefix as United Kingdom.