Map
General Information
| Postal Area | Monmouthshire |
| Postcode | NP11 4YQ |
| User Type | Large (more than 25 items of mail per day) |
| Region | — |
| Country | Wales |
| Local authority | Caerphilly |
| Introduction Date | 1999-06-01 |
| Termination Date | 2001-01-01 |
Geographic Information
| Latitude | 51.6634170 |
| Longitude | -3.1480300 |
| Easting | 320693 |
| Northing | 196695 |
| Quality | Postcode sector mean, (mainly PO Boxes) |