| Country | United Kingdom (GB) |
| UN/LOCODE | MET |
| Name | Merthyr Tydfil |
| Name Without Diacritics | Merthyr Tydfil |
| Region | MTY |
| Function Code | --3----- |
| Function | Road |
| Status Code | AF (Approved by National Facilitation Body) |
| Date | 1401 |
| Timezone | Europe/London |
| Location (UN Format) | 5145N 00323W |
| Latitude Longitude | 51.7479, -3.3778 |