| SY23 3ER information | |
|---|---|
| Postcode | SY23 3ER |
| Outward code | SY23 |
| Place | Penrhyncoch |
| Name | Place | Postcode |
|---|---|---|
| Awel y Coed, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Bro Dafydd, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Brogynin Cottage, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Brogynin Fach, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Brogynin Fawr, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Glyn Helyg, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Hendy, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Penybanc, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Tir y Dail, Penrhyncoch | Penrhyncoch | SY23 3ER |
| Ty Dafydd, Penrhyncoch | Penrhyncoch | SY23 3ER |