Postcode Tools
Useful postcode area list by Country:
England:
AL, B, BA, BB, BD, BH, BL, BN, BR, BS, CA, CB, CH, CM, CO, CR, CT, CV, CW, DA, DE, DH, DL, DN, DT, DY, E, EC, EN, EX, FY, GL, GU, HA, HD, HG, HP, HU, HX, IG, IP, KT, L, LA, LE, LN, LS, LU, M, ME, MK, N, NE, NG, NN, NR, NW, OL, OX, PE, PL, PO, PR, RG, RH, RM, S, SE, SG, SK, SL, SM, SN, SO, SP, SR, SS, ST, SW, TA, TF, TN, TQ, TR, TS, TW, UB, W, WA, WC, WD, WF, WN, WR, WS, WV, YO, GY, JE, IM
Wales
CF, HR, LD, LL, NP, SA, SY
Scotland:
AB, DD, DG, EH, FK, G, HS, IV, KA, KW, KY, ML, PA, PH, TD, ZE
Northern Ireland:
BT