02890 is the area code for the Belfast area in the region. The 02890 area includes places like Castlereagh, among others.
The majority of numbers utilizing the 02890 area code are regular Belfast 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 02890 telephone numbers:
| Region | (Northern Ireland) | |
| Number format | 02890 XXXXXX | |
| Local number digits | 6 |
| Location | Belfast | |
| International number format | +44 2890 XXXXXX | |
| Geo | 54.58333 , -5.95 |
Call cost: landline connection fee depends on your service provider.
02890 is the telephone area code for Belfast (Northern Ireland). Landline numbers in this area start with 02890.
Dial +44 (the UK country code), then 2890 without the leading 0, then the 6-digit local number: +44 2890 XXXXXX.
Within the 02890 area you can usually dial just the 6-digit local number. From a mobile phone or from another area, dial the full number: 02890 XXXXXX.