The Area Codes of Luxembourg:
| City/Town or Region | Area code | |
|---|---|---|
| 1. | Diedrich | 2745 (+352 2745) |
| 2. | Diedrich | 45 (+352 45) |
| 3. | Diedrich | 2445 (+352 2445) |
| 4. | Diedrich | 2645 (+352 2645) |
| 5. | Diekirch | 2680 (+352 2680) |
| 6. | Diekirch | 2780 (+352 2780) |
| 7. | Diekirch | 80 (+352 80) |
| 8. | Diekirch | 2480 (+352 2480) |
| 9. | Dudelange | 2652 (+352 2652) |
| 10. | Dudelange | 2667 (+352 2667) |
| 11. | Dudelange | 2752 (+352 2752) |
| 12. | Dudelange | 2767 (+352 2767) |
| 13. | Dudelange | 52 (+352 52) |
| 14. | Dudelange | 67 (+352 67) |
| 15. | Dudelange | 2452 (+352 2452) |
| 16. | Dudelange | 2467 (+352 2467) |
| 17. | Dudelange/Bettembourg/Livange | 2651 (+352 2651) |
| 18. | Dudelange/Bettembourg/Livange | 2751 (+352 2751) |
| 19. | Dudelange/Bettembourg/Livange | 51 (+352 51) |
| 20. | Dudelange/Bettembourg/Livange | 2451 (+352 2451) |