| 801 | SHIRLEY SOUTHAMPTON |
| 802 | SHIRLEY WEST MID (778552) |
| 803 | SHIRLEY WEST MIDS (309757) |
| 804 | SHOTTON (301803) |
| 805 | SHOTTON (774813) |
| 806 | SHREWSBURY MOUNT PLEASANT |
| 807 | SILEBY (T) |
| 808 | SITTINGBOURNE (301806) |
| 809 | SLOUGH CENTRAL |
| 810 | SLOUGH HIGH ST (774917) |
| 811 | SOUTH HARROW (301593) |
| 812 | SOUTH HARROW (309785) |
| 813 | SOUTH KENSINGTON |
| 814 | SOUTH NEWINGTON (771205) |
| 815 | SOUTH NEWINGTON (771208) |
| 816 | SOUTH SHIELDS KING ST |
| 817 | SOUTH STR WORTHING 309993 |
| 818 | SOUTHAMPTON RON |
| 819 | SOUTHAMPTON ROW |
| 820 | SOUTHEND-ON-SEA |
| 821 | SOUTHPORT LONDON STREET |
| 822 | SOUTHSEA (COLO 309304) |
| 823 | SPENNYMOOR (772023) |
| 824 | SPENNYMOOR (772040) |
| 825 | ST ALBANS (309725) |