London Phone Numbers

Fixed Lines

  • +44 20 0122 2073
  • +44 20 3638 3812
  • +44 20 1929 1371
  • +44 20 3638 2589
  • +44 20 3733 4978
  • +44 20 3864 0405
  • +44 20 3864 5273
  • +44 20 4158 2257
  • +44 20 8630 9939
  • +44 20 3864 8925

Mobile Lines

  • +44 7911 203058
  • +44 7502 402924
  • +44 7751 397367
  • +44 7457 804713
  • +44 7911 895286
  • +44 7173 411946
  • +44 7911 859565
  • +44 7457 855176
  • +44 7392 286039
  • +44 7406 100229

The London area code is +4420 and the calling code forUnited Kingdom is +44. An area code of a region containsthe country code. This means that phone numbers in London start with +4420. The phone number format for London is +44 20 XXXX XXXX.

You can use these phone numbers to compare them with a phone number that your received from someone in London.In this way, you can ensure that the number is valid and from London.

Generate random phone numbers for London and use them to test your validations or show them as an example for users. The users will know how they should type their phone number.For example, if you require the number for a landline in London and the user enters his local number without the prefix 4420 and he doesn't specify area code, then you don't knowif the number is correct.