Map
General Information
| Postal Area | Belfast |
| Postcode | BT1 1SA |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Northern Ireland |
| Local authority | Belfast |
| Introduction Date | 1999-12-01 |
| Termination Date | 2017-02-01 |
Geographic Information
| Latitude | 54.5990030 |
| Longitude | -5.9306530 |
| Easting | 333787 |
| Northing | 374276 |
| Quality | Within the building of the matched address closest to the postcode mean |