01689 is the area code for the Orpington area in the Greater London region. The 1689 region includes places like: Farnborough, Sidcup, Chislehurst and Knockholt, among others.
The majority of numbers utilizing the 01689 area code are regular Orpington 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 01689 telephone numbers:
| Region | Greater London (England) | |
| Number format | 01689 XXXXXX | |
| Local number digits | 6 |
| Location | Orpington | |
| International number format | +44 1689 XXXXXX | |
| Geo | 51.37457 ,0.09785 |
Call cost: landline connection fee depends on your service provider.