020 area code: London
Updated: 17/09/2026
020 is the area code for London. Landline numbers with this code are written as 020 XXXX XXXX.
020 area code – London
| Area code | 020 |
|---|---|
| Area | London |
| Region | Greater London |
| Often written as | 0203, 0207, 0208 |
| Number format | 020 XXXX XXXX |
| International format | +44 20 XXXX XXXX |
An area code does not prove where the caller is. Geographic numbers are also issued to internet phone (VoIP) services, so a business or call centre anywhere can use a local-looking number, and scammers often fake local area codes.
Missed call from a number starting with 020 – what to do
- Check the full number in the search below to see reviews and reports from other people.
- Never read out one-time passcodes, card details or online banking passwords over the phone. Your bank and the police will never ask you to move money to a "safe account".
- Forward scam texts to 7726 for free and report fraud to Report Fraud, which replaced Action Fraud (in Scotland, to Police Scotland on 101).
Other area codes in Greater London
All dialling codes