01638 is the area code for the Newmarket area in the Denbighshire region. The 01638 area includes places like Dyserth, among others.
The majority of numbers utilizing the 01638 area code are regular Newmarket 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 01638 telephone numbers:
| Region | Denbighshire (Wales) | |
| Number format | 01638 XXXXXX | |
| Local number digits | 6 |
| Location | Newmarket | |
| International number format | +44 1638 XXXXXX | |
| Geo | 53.3 , -3.38333 |
Call cost: landline connection fee depends on your service provider.
01638 is the telephone area code for Newmarket, Denbighshire (Wales). Landline numbers in this area start with 01638.
Dial +44 (the UK country code), then 1638 without the leading 0, then the 6-digit local number: +44 1638 XXXXXX.
Within the 01638 area you can usually dial just the 6-digit local number. From a mobile phone or from another area, dial the full number: 01638 XXXXXX.