| Zone 1 |
Lancashire,
Merseyside, Greater Manchester - BB, BL, FY, L, M, OL, PR, WA, WN |
| Zone 2 |
AL,
B, CB, CH, CV, DE, DN, HD, HX, LE, LS, LU, MK, NG, NN, PE, SG, SK, ST, WF, WS |
| Zone 3 |
BA,BD,
BR, BS, CR, DA,DN, DY, E, EC, EN, GL, GU, HA, HP, HR, IG, KT, LN, N, NW, OX,
RM, RG, RH, SE, SL, SM, SN, SW, TF, TW, UB, WC, WD, WR, WV |
| Zone 4 |
BH,
BN, CF, CM, CO, CT, DH, DL, HG, IP, ME, NE, NP, NR, PO,S, SO, SP, SR, SS, TN,
TS,YO |
| Zone 5 |
AB10-16,
AB21-25, CA, DD, DG, DT, EH, EX, FK, G, HU, IV1-2, IV5, IV 12, IV30-32, IV36,
KA1-4, KA 8-17, KA20-25, KA 29-30, KY, LA, LL, ML, PA1-19, PL, PH1-2, TA, TD,
TQ, Remainder KA |
| Zone 6 |
DG
Mainland, KW, LD, SA, SY, TR, TD, Remainder of AB, Remainder of PH, Remainder
of IV |
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