Validating Phone Number Formats in United Kingdom

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Q

How to validate phone number formats for United Kingdom?

Enter your phone number in the form below and click the "Validate" button.

✍: FYIcenter.com

A

Validation result by FYIcenter.com:

Specified Phone Number: Valid ✔

"20 8759 3344" matches the format of "AA SSSS SSSS"

Most phone numbers in United Kingdom are written in the following formats:

   Prefix: long distance or international
   --------------------------------------
   |   Carrier or area code 
   |   --------------------
   |   |   Subscriber number
   |   |   -----------------
   v   v   v
   0   AA  SSSS SSSS    - Local format
   0   AAA SSS SSSS     - Local format
  +44  AA  SSSS SSSS    - International format
  +44  AAA SSS SSSS     - International format

Most telephone numbers in United Kingdom have 10, 10 digits and are written in the format of "AA SSSS SSSS", "AAA SSS SSSS". Here are some examples: 20 8759 3344; 20 7874 1000; 844 335 1801; 344 481 5555.

When dialing locally inside United Kingdom, the long distance prefix of "0" is required. So the format becomes "0 AA SSSS SSSS", "0 AAA SSS SSSS".

When dialing from outside of United Kingdom, the international dial-in prefix "+44" is required. So the format becomes "+44 AA SSSS SSSS", "+44 AAA SSS SSSS".

When dialing from United Kingdom to other countries, the international dail-out prefix "+" or "00" required.

To validate phone number formats for other countries or regions, see our Generic Phone Number Format Validator.

To see phone number examples in United Kingdom, try our Test Phone Number Generator.

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