Who called me from a Verizon UK number?

Verizon UK is a UK communications provider, part of Verizon. That means Ofcom has allocated Verizon UK one or more blocks of UK telephone numbers under the National Telephone Numbering Plan, which Verizon UK can either use for its own customers or sub-allocate to resellers and downstream providers. In total, Verizon UK currently holds 494 allocated number blocks in our copy of the Ofcom plan.

Verizon UK's number ranges are concentrated in (020) (London), 0345, 0845, 01753 (Slough). Across all of its allocations the split is roughly 405 geographic landline, 47 premium-rate, 34 03 non-geographic, 8 freephone blocks. You can use the tables below to jump straight to a specific Verizon UK area code or number block and see the common call patterns reported for it.

The oldest Verizon UK number block in the Ofcom data was allocated in 1995, and the most recent in 2025. Allocation dates matter because a number that has been live for many years is more likely to be a settled business or residential line, whereas a very recently-allocated block is more commonly seen in VoIP and virtual-number services — the kind sometimes used for short-lived marketing or scam campaigns.

Is a Verizon UK number safe to answer? In most cases, yes — the overwhelming majority of calls from any UK provider's range are ordinary, legitimate calls. However, two things are important to understand. First, because Verizon UK can sub-allocate or resell its numbers, the fact that a number sits in a Verizon UK block does not mean Verizon UK itself is calling you. Second, UK caller IDs can be spoofed: scammers can make a call appear to come from a Verizon UK number they don't control. So treat the number as a clue, not proof — judge the call on what the caller actually asks for.

If a Verizon UK number called you and you're unsure, don't share security details, bank information or one-time passcodes, and don't return the call until you've verified it independently. You can block the specific number on any UK smartphone from the recent-calls list, enable free network-level call screening through your own landline provider, and register with the Telephone Preference Service (TPS) to cut legitimate marketing calls. Persistent nuisance calls can be reported to Ofcom, and suspected scams to Action Fraud (or Police Scotland on 101).