| Country | United Kingdom (GB) |
| UN/LOCODE | WLN |
| Name | Welwyn |
| Name Without Diacritics | Welwyn |
| Region | HRT |
| Function Code | --3----- |
| Function | Road |
| Status Code | AF (Approved by National Facilitation Body) |
| Date | 9511 |
| Country | United Kingdom (GB) |
| UN/LOCODE | WLN |
| Name | Welwyn |
| Name Without Diacritics | Welwyn |
| Region | HRT |
| Function Code | --3----- |
| Function | Road |
| Status Code | AF (Approved by National Facilitation Body) |
| Date | 9511 |