WhoCalledYou

UK mobile prefixes

UK mobile numbers start 07. Ofcom issues each 4-digit prefix to a specific network, and that register is below: 586 allocated mobile prefixes plus the 87 prefixes in the 070 personal range. Keep in mind that numbers are portable, so the network that issued a prefix isn't always the network serving it today. Data retrieved 2026-09-06.

First, the 070 trap

070 numbers are personal ‘follow me’ numbers that forward to another line. They look exactly like mobile numbers, and that look-alike quality is what missed-call scams trade on: you see a missed call, assume it's a mobile, and ring back a number that may cost you more than you expect. If an unknown 070 number calls you, let it go.

071x prefixes

073x prefixes

074x prefixes

075x prefixes

076x prefixes

077x prefixes

078x prefixes

079x prefixes

070 personal number prefixes