ZONE 1ZONE 2ZONE 3ZONE 4
ALL ENGLAND & WALES POSTCODESDD, DG, EH, FK, G, KY, ML, TDAB31-38, AB40-56HS
KA (EXCEPT KA27, KA28)IV1-28, IV30-32, IV36, IV40, IV52-54, IV63IV41-49, IV51, IV55-56
AB1-16 , AB21-25, AB30, AB39KW1-14KA27-28
PA1-19PA21-38KW15-17
PH1-3PH4-41PA20, PA41-49, PA60-78
BT (NORTHERN IRELAND)PH42-44
ISLE OF WIGHT, ISLE OF SCILLYIoM, CHANNEL ISLANDS