Map
General Information
| Postal Area | Monmouthshire |
| Postcode | NP11 4XB |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Wales |
| Local authority | Caerphilly |
| Introduction Date | 1999-06-01 |
| Termination Date | 2017-07-01 |
Geographic Information
| Latitude | 51.6645130 |
| Longitude | -3.1453540 |
| Easting | 320880 |
| Northing | 196814 |
| Quality | Within the building of the matched address closest to the postcode mean |