UK Area Codes Finder
020 area code information
The phone area code for London uses 8 local number digits after the area code prefix of 020. Based in the county of Greater London in the South East region of England, calls from London telephone numbers typically always follow the format of 020 [-][-][-][-] [-][-][-][-].
Other locations using the (0)20 area code
There are a number of other locations in local proximity to the London area that use the same number format. The list below represents some of the other towns and villages that use the same prefix:
- Brent
- Bromley
- Camden
- Croydon
- Greenwich
- Hackney
- Hammersmith
- Hounslow
- Islington
- Kensington and Chelsea
- Lambeth
- Lewisham
Looking for more UK calling information?
Find out more details in our essential phone numbers guide, featuring information on 01 & 02 residential lines, 08 service lines and main emergency numbers used in the United Kingdom.
Want to find different area codes outside of London? Check out our dialling codes by region below:
Nuisance calls from London telephone numbers?
If you’re receiving nuisance calls from a London, 020 telephone number, you can report it to the Information Commissioner’s Office and help stop unwanted calls from automated bots or real people.
Reporting a call to the ICO takes no longer than five minutes, simply click the button below.
How to call London phone numbers
You can find all the relevant information for London telephone numbers including how to dial the 020 prefix from international locations. Call rates from international locations and mobile telephone numbers vary from standard rate charges, check with your supplier for a breakdown of costs per minute.
| Dialling Code | 020 |
| Local Number Digits | 8 |
| UK Format | 020 [-][-][-][-] [-][-][-][-] |
| International Format | +44 (0)20 |
| Location | London |
| County | Greater London |
| Country | England |
| Geo Coordinates | 51.508129, -0.128005 |