| Sr. No. | City |
|---|---|
| 501 | DOWNPATRICK |
| 502 | DREGHORN |
| 503 | DRIFFIELD |
| 504 | DROITWICH |
| 505 | DROMORE |
| 506 | DRONFIELD |
| 507 | DROYLSDEN |
| 508 | DRYMEN |
| 509 | DUDLEY |
| 510 | DUFFIELD |
| 511 | DUFFTOWN |
| 512 | DULVERTON |
| 513 | DUMBARTON |
| 514 | DUMFRIES |
| 515 | DUNBAR |
| 516 | DUNBLANE |
| 517 | DUNDEE |
| 518 | DUNFERMLINE |
| 519 | DUNGANNON |
| 520 | DUNGIVEN |
| 521 | DUNKELD |
| 522 | DUNLOP |
| 523 | DUNMOW |
| 524 | DUNOON |
| 525 | DUNS |