| 301 | CARLISLE & LANCS AGENCIES |
| 302 | CARNFORTH (HPS) |
| 303 | CARRICKFERGUS (HPS) |
| 304 | CASTLE BROMWICH |
| 305 | CASTLEFORD 66 CARLTON ST |
| 306 | CATFORD |
| 307 | CATFORD (HPS) |
| 308 | CATFORD 122 RUSHEY GREEN |
| 309 | CAVERSHAM (HPS) |
| 310 | CB - LONDON 3 |
| 311 | CB LOGICA |
| 312 | CENTRAL & EAST SCOT AGY |
| 313 | CENTRAL CASH |
| 314 | CENTRAL CASH TCHQS |
| 315 | CENTRAL LONDON AGENCIES 1 |
| 316 | CENTRAL LONDON AGENCIES 2 |
| 317 | CENTRAL MIDLANDS AGY S 3 |
| 318 | CENTRAL MIDLANDS AGY'S 1 |
| 319 | CENTRAL MIDLANDS AGY'S 2 |
| 320 | CENTRAL REFERRAL UNIT |
| 321 | CENTRAL SCOTLAND MTG DESK |
| 322 | CHAPELTOWN SHEFFIELD (HPS) |
| 323 | CHAPS PAYMENT TREASURY |
| 324 | CHAPS PAYMENTS (BANKING) |
| 325 | CHATHAM 248 HIGH STREET |