Warning
The number of digits in the area code and subscriber number is not as expected for this country, this could be an error in the system, or that too few or many digits were entered, look below for more information.
Dialing from London to San Francisco
Result, dial: 00 1 415 0
(If you are behind a switchboard you may have to dial '0' or '9' (or another number) to get an external line.)
How the number is composed
| Number | Comments |
|---|---|
| 00 | 00 is the international prefix used to dial somewhere outside of United Kingdom. |
| 1 | 1 is the international code used to dial to USA. |
| 415 | There are multiple city/area codes in use for San Francisco. If 415 does not work, you may try the others. The area codes used are: 415/628. |
| 0 | /1000 is the local number you wrote. The international prefix was removed from the number. The national prefix was removed from the number. Some letters/symbols are translated or removed. |
Find other dialing codes
Local time comparison
| Location | Local Time |
|---|---|
| London (United Kingdom – England) | Sunday, June 15, 2025 at 1:48:30 am |
| San Francisco (USA – California) | Saturday, June 14, 2025 at 5:48:30 pm |