| 301 | OLDHAM,10 YORKSHIRE STREET |
| 302 | ORPINGTON (A) |
| 303 | OSWESTRY (A) |
| 304 | OXFORD CORNMARKET ST (A) |
| 305 | OXFORD CORNMARKET STREET |
| 306 | OXFORD HIGH STREET |
| 307 | OXFORD HIGH STREET (A) |
| 308 | OXFORD NORTH |
| 309 | OXTED |
| 310 | OXTED (A) |
| 311 | OXTED (B) |
| 312 | PADDINGTON |
| 313 | PALMERS GREEN |
| 314 | PARK ROYAL |
| 315 | PARK ROYAL (A) |
| 316 | PARK ROYAL (B) |
| 317 | PEACEHAVEN (A) |
| 318 | PECKHAM |
| 319 | PICCADILLY & NEW BOND ST(B) |
| 320 | PICCADILLY&NEW BOND ST (A) |
| 321 | PICCADILY & NEW BOND STREET |
| 322 | PINNER |
| 323 | PORT SUNLIGHT |
| 324 | PORTMADOG |
| 325 | PORTMAN SQUARE |