| Sr. No. | City |
|---|---|
| 401 | COLERAINE |
| 402 | COLNBROOK |
| 403 | COLNE |
| 404 | COLWYN BAY |
| 405 | COMBER |
| 406 | COMRIE |
| 407 | CONGLETON |
| 408 | CONSETT |
| 409 | CONWY |
| 410 | COOKHAM |
| 411 | COOKSTOWN |
| 412 | COPLEY |
| 413 | COPPULL |
| 414 | CORBY |
| 415 | CORSHAM |
| 416 | CORWEN |
| 417 | COSHAM |
| 418 | COTTINGHAM |
| 419 | COULSDON |
| 420 | COUPAR ANGUS |
| 421 | COVENTRY |
| 422 | COWBRIDGE |
| 423 | COWDENBEATH |
| 424 | COWES |
| 425 | COWPLAIN |