020 is the area code for the London area in the Greater London region. The 020 area includes places like Lambeth, Clerkenwell, West End of London and City of London, among others.
The majority of numbers utilizing the 020 area code are regular London landlines, however it should be noted that this might be misleading. Many businesses don’t provide a service that is connected or requires a physical address, but if they have a phone number, they have an area code.
Areas using 020 telephone numbers:
| Region | Greater London (England) | |
| Number format | 020 XXXX XXXX | |
| Local number digits | 8 |
| Location | London | |
| International number format | +44 20 XXXX XXXX | |
| Geo | 51.50853 , -0.12574 |
Call cost: landline connection fee depends on your service provider.
020 is the telephone area code for London, Greater London (England). Landline numbers in this area start with 020.
Dial +44 (the UK country code), then 20 without the leading 0, then the 8-digit local number: +44 20 XXXX XXXX.
Within the 020 area you can usually dial just the 8-digit local number. From a mobile phone or from another area, dial the full number: 020 XXXX XXXX.