Map
General Information
| Postal Area | Belfast |
| Postcode | BT1 1AA |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Northern Ireland |
| Local authority | Belfast |
| Introduction Date | 1990-02-01 |
Geographic Information
| Latitude | 54.6024440 |
| Longitude | -5.9222910 |
| Easting | 334316 |
| Northing | 374675 |
| Quality | Within the building of the matched address closest to the postcode mean |