05601 21 Dialing Code

UK telephone numbers with dialing codes that start with 056 are location independent electronic communications service numbers (including VoIP).

Location independent electronic communications service numbers (including VoIP) are allocated in blocks to particular providers and the remaining digits of the dialing code indicate which particular provider this block of numbers were originally allocated to.In this case, the full dialing code 05601 21 indicates that the number was originally allocated to Magrathea Telecommunications Limited on 11 February 2022. Note that due to number portability, it is not possible to say which provider a specific telephone number is currently allocated to as they may have been transferred by the user.

05601 21 dialing code information