- Prefix
020 0- Area
- London
- Number type
- Geographic landline (01/02)
- Format
020 0XXX XXXX- From abroad
+44 20 0XXX XXXX- Ofcom blocks in range
- 1,000
- Blocks in service
- 42
- Range holders
- 22
What are 020 0XXX XXXX numbers?
Any UK number matching 020 0XXX XXXX sits in the
020 dialling code for London.
Ofcom hands these numbers to communications providers in blocks; this range
contains 1,000 blocks, of which
42 are allocated and usable. Calls from these
numbers are typically homes and businesses in the London area — or
organisations elsewhere that keep a local 020 presence using
VoIP.
Who holds 020 0… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 10 | 020 0000 XXXX |
| Buzz Networks Limited | 5 | 020 0100 XXXX |
| TelXL Limited | 3 | 020 0200 XXXX |
| Virgin Media Limited | 3 | 020 0007 XXXX |
| GCI Network Solutions Limited | 2 | 020 0188 XXXX |
| Syntec Limited | 2 | 020 0500 XXXX |
| TalkTalk Communications Limited | 2 | 020 0011 XXXX |
| (AQ) LIMITED | 1 | 020 0333 XXXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 020 0020 XXXX |
| Atlas Interactive Group Limited | 1 | 020 0004 XXXX |
| Babble Cloud (SUI) Limited | 1 | 020 0300 XXXX |
| Barritel Limited | 1 | 020 0002 XXXX |
…and 10 more providers hold smaller allocations in this range.
Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.
Not every block in this range is in service: of the 1,000 blocks Ofcom lists, 958 are protected (reserved by Ofcom and not in use). A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 020 0… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 020 caller IDs so their calls look like they come from London (‘neighbour spoofing’). If an unexpected caller asks for personal, banking or one-time-code details, hang up and ring the organisation back on a number you find independently. To put a name to a caller, see who called me?; to report one, see how to report a scam number.
Check a specific 020 0XXX XXXX number
Paste any full number into the checker above (or on the main phone number checker) to see its exact range holder and allocation status from this week’s Ofcom data.
Run mobiles for a business? See our business mobile network comparison or get a quote.