The Area Codes of United Kingdom:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Tain | 01862 (+441862) |
| 2. | Tamworth | 01827 (+441827) |
| 3. | Tarbert | 01880 (+441880) |
| 4. | Tarporley | 01829 (+441829) |
| 5. | Taunton | 01823 (+441823) |
| 6. | Tavistock | 01822 (+441822) |
| 7. | Telford | 01952 (+441952) |
| 8. | Temple Cloud | 01761 (+441761) |
| 9. | Thame | 01844 (+441844) |
| 10. | Thanet | 01843 (+441843) |
| 11. | Thetford | 01842 (+441842) |
| 12. | Thirsk | 01845 (+441845) |
| 13. | Thornhill | 01848 (+441848) |
| 14. | Thurso and Tongue | 01847 (+441847) |
| 15. | Tinto | 01864 (+441864) |
| 16. | Tiverton | 01884 (+441884) |
| 17. | Tobermory, Isle of Mull | 01688 (+441688) |
| 18. | Tomatin | 01808 (+441808) |
| 19. | Tomdoun | 01809 (+441809) |
| 20. | Torquay | 01803 (+441803) |
| 21. | Torrington | 01805 (+441805) |
| 22. | Tranent | 01875 (+441875) |
| 23. | Truro | 01872 (+441872) |
| 24. | Tunbridge Wells | 01892 (+441892) |
| 25. | Turriff | 01888 (+441888) |
| 26. | Tyneside, Sunderland and Durham | 0191 (+44191) |