UK area code
020 — London
The 020 dialling code covers London in Greater London. Approximate population of the area: 8,982,000. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 020 dialling code
020 is the UK area code for London and the surrounding Greater London area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 20 the originating exchange is most likely physically located in or near London. Numbers in this code are allocated to UK communications providers in 1,000- or 10,000-number blocks; the table below shows which Range Holder Ofcom assigned each block to.
This is the same data Ofcom publishes every Wednesday in the public UK Numbering Data feed. We re-ingest the snapshot weekly, so the allocations you see here are at most seven days old. Because UK numbers are portable, the current carrier of any specific number on 020 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 020 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for London, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 020 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 020
- British Telecommunications PLC2 ranges
- Virgin Media Ltd1 range
- Vodafone Limited1 range
- Sky UK Ltd1 range
- TalkTalk Communications Limited1 range
All allocated ranges on 020
Showing up to 200 ranges, ordered by prefix.
| Prefix | Status | Range holder |
|---|---|---|
| +44 203 | Allocated | British Telecommunications PLC |
| +44 207100 | Allocated | Virgin Media Ltd |
| +44 207101 | Allocated | Vodafone Limited |
| +44 207102 | Allocated | Sky UK Ltd |
| +44 207103 | Allocated | TalkTalk Communications Limited |
| +44 207946 | Allocated | British Telecommunications PLC |
Related lookups
FAQs about 020
What does the 020 area code cover?
020 is the UK dialling code for London and the wider Greater London area. The area has a population of approximately 8,982,000. When you receive a call starting with 020 from a UK landline, the originating exchange is likely in or near London.
Is a 020 number safe?
Most calls from 020 are legitimate landlines. Scammers can however spoof any UK area code, so a 020 prefix alone doesn't guarantee safety. Use the lookup above to see the Range Holder, then read the AI internet check for behavioural reports.
How many providers operate 020 number ranges?
Across the 6 ranges currently visible, 5 different Range Holders are listed. The top allocations are typically held by Openreach (BT), Virgin Media O2 and Sky.