Prefissi di Regno Unito:
| Città /paese o regione | Prefisso | |
|---|---|---|
| 1. | Padstow | 01841 |
| 2. | Pakenham | 01359 |
| 3. | Peat Inn | 01333 |
| 4. | Peebles | 01721 |
| 5. | Pencombe | 01885 |
| 6. | Penicuik | 01968 |
| 7. | Penrith | 01768 |
| 8. | Penzance | 01736 |
| 9. | Perth | 01738 |
| 10. | Peterborough | 01733 |
| 11. | Peterhead | 01779 |
| 12. | Petersfield | 01730 |
| 13. | Pickering | 01751 |
| 14. | Pitlochry | 01796 |
| 15. | Plymouth | 01752 |
| 16. | Pocklington | 01759 |
| 17. | Pontefract | 01977 |
| 18. | Pontypool | 01495 |
| 19. | Pontypridd | 01443 |
| 20. | Pooley Bridge | 017684 |
| 21. | Port Ellen | 01496 |
| 22. | Portadown (Northern Ireland) | 02838 |
| 23. | Porthmadog | 01766 |
| 24. | Portree, Isle of Skye | 01478 |
| 25. | Preston | 01772 |
| 26. | Prudhoe | 01661 |
| 27. | Pulborough | 01798 |
| 28. | Pwllheli | 01758 |