01766 is the area code for the Porthmadog area in the Gwynedd region. The 1766 region includes places like: Criccieth, Penrhyndeudraeth, Harlech and Garndolbenmaen, among others.
The majority of numbers utilizing the 01766 area code are regular Porthmadog landlines, however it should be noted that this might be misleading. Many businesses don’t provide a service that is connected or requires a physical address, but if they have a phone number, they have an area code.
Areas using 01766 telephone numbers:
| Region | Gwynedd (Wales) | |
| Number format | 01766 XXXXXX | |
| Local number digits | 6 |
| Location | Porthmadog | |
| International number format | +44 1766 XXXXXX | |
| Geo | 52.91797 ,-4.14548 |
Call cost: landline connection fee depends on your service provider.