01811

Geographic - unassigned (formerly London Outer Area, National Dialling)

The 01811 dialling code has not yet been allocated to any geographic location.

If you have received a call from a telephone number beginning 01811, it is likely that the caller is spoofing their identity.


Have you been called by a number beginning 01811?

For full numbers beginning 01811, click here to get info on who called.


Phone numbers beginning 01811 are geographic numbers.

More on geographic numbers


How to write an 01811 telephone number

Numbers beginning 01811 are not currently in use, so a format has not yet been determined.


The cost of calling an 01811 number

You cannot currently call numbers beginning 01811 as they are not currently in use.