UK Phone Number Checker
Check if a UK phone number is valid, whether it's a landline or mobile, where it's from and which company holds the number range. Get the correct UK and international (+44) format and see how to dial it from abroad. Free, no sign-up.
Check a number
0333 556 5587 is a valid UK non-geographic number.
- UK format
0333 556 5587- International
+44 333 556 5587- E.164 (for systems)
+443335565587- Number type
- Non-geographic
- Prefix
- 0333
- Range allocated to
- GCI Network Solutions Limited
- Call from the USA / Canada
011 44 333 556 5587- Call from Europe and most countries
00 44 333 556 5587or+44 333 556 5587
Call cost: UK-wide numbers that are not tied to an area. They cost the same as calling an 01 or 02 number and count towards inclusive minutes. Banks, government departments, charities and large companies use them a lot. UK call costs explained.
Calling from another country? See what to dial from abroad.
Check a list of numbers (bulk)
Paste up to 500 numbers, one per line or separated by commas. You get the type, area, range holder and correct formats for each, and can download the result as a CSV file for Excel or Google Sheets.
| Number | Valid | Type | Area | Range holder / network | International | Reports |
|---|
How to tell what kind of UK number it is
The first digits of a UK number tell you a lot before you answer or call back:
- 01 and 02: landlines with an area code, such as 020 for London or 0161 for Manchester.
- 03: UK-wide numbers charged like a normal landline call.
- 07: mobiles (070 and 076 are personal and pager numbers that can cost more).
- 0800 and 0808: freephone, free from landlines and mobiles.
- 084 and 087: business rate numbers with a service charge.
- 09: premium rate, which can cost several pounds a minute.
UK phone number formats explained
UK (national) format is how numbers are written for people in the UK: 0161 496 0000 or 07xxx xxxxxx. International format replaces the first 0 with +44: +44 161 496 0000. E.164 is the same without spaces (+441614960000) and is what CRMs, SMS tools and phone systems expect.
How to dial a UK number from abroad
Dial your country's exit code, then 44 (the UK country code), then the number without the leading 0. From the USA and Canada the exit code is 011, from most of Europe it is 00. On a mobile phone, just start with +44 and it works from anywhere.
Questions about checking UK numbers
How do I know if a UK phone number is valid?
Type it into the checker above. A valid UK number has 11 digits starting with 0 (for example 0161 496 0000) or 10 digits after +44. The checker also confirms the number belongs to a range that is in use in the UK numbering plan.
How can I tell if a number is a landline or a mobile?
UK mobile numbers start with 07 (except 070 personal and 076 pager numbers). Landlines start with 01 or 02 and include an area code. Numbers starting with 03, 080, 084, 087 or 09 are non-geographic. The checker shows the exact type for you.
What is the international format of a UK number?
Drop the first 0 and add +44 in front: 01536 857648 becomes +44 1536 857648. In systems and spreadsheets the E.164 format without spaces is used: +441536857648.
How do I call a UK number from abroad?
Dial your country's exit code, then 44, then the number without the first 0. From the USA or Canada that is 011 44, from most of Europe 00 44. On a mobile you can simply dial +44.
Can the checker tell me who owns a number?
No. It shows the number type, the area for landlines and the company that holds the number range, plus any reports from people who received calls from it. Private subscriber details are never shown.
Is it free?
Yes. You can check single numbers or lists of up to 500 numbers for free, without an account.