| AL | B | BA | BB | BH |
| BL | BN | BR | BS | BT |
| CA | CB | CF | CH | CM |
| CO | CR | CV | CW | DA |
| DE | DG | DH | DL | DN |
| DY | E | EC | EH | EN |
| EX | G | GL | GU | HD |
| HP | HR | HU | HX | IG |
| IP | IR | KA | KT | L |
| LA | LD | LE | LG | LL |
| LN | LS | LU | M | ME |
| MK | ML | N | NC | NE |
| NG | NN | NP | NR | NW |
| OL | OX | PE | PL | PO |
| PR | RG | RH | RM | S |
| SA | SC | SE | SG | SH |
| SK | SL | SM | SN | SO |
| SP | SR | SS | ST | SW |
| SY | TA | TF | TN | TQ |
| TR | TS | TW | UB | UK |
| W | WA | WC | WD | WF |
| WN | WR | WS | WV | YO |