| Postcode | Coverage Area |
| MK40 | Biddenham,Castle,De Parys,Great Denham,Harpur,Queens Park |
| MK41 | Brickhill,Clapham,De Parys,Goldington,Harpur,Newnham,Putnoe,Renhold,Salph End |
| MK42 | Castle,Cauldwell,Elstow,Harrowden,Kempston,Kingsbrook,Shortstown,Wixams |
| MK43 | Bourne End,Brogborough,Box End,Bromham,Cranfield,Carlton,Felmersham,Harrold,Husborne Crawley,Keeley Green,Kempston Rural,Lidlington,Lower Shelton,Marston Moretaine,Newton Blossomvilleoakley,Odell,Pave |
| MK44 | Begwary,Bletsoe,Blunham,Bolnhurst,Cardington,Chawston,Colesden,Colmworth,Cople,Ducks Cross,Great Barford,Keysoe,Keysoe Row,Kingsbrook,Knotting,Knotting Green,Little Staughton,Melchbourne,Milton Ernest |
| MK45 | Ampthill,Barton-le-clay,Clophill,Cotton End,Flitton,Flitwick,Gravenhurst,Greenfield,Haynes,Haynes Church End,Herrings Green,Houghton Conquest,How End,Kempston Hardwick,Maulden,Millbrook,Pulloxhill,Sha |
| NN10 | Higham Ferrers,Rushden,Wymington |
| NN29 | Bozeat,Great Doddington,Irchester,Podington,Wollaston |
| PE19 | St Neots,Abbotsley,Buckden,Croxton,Diddington,Duloe,Eaton Ford,Eaton Socon,Eltisley,Eynesbury,Graveley,Great Paxton,Great Staughton,Hail Weston,Honeydon,Little Barford,Little Paxton,Offord Cluny,South |
| PE28 | Abbots Ripton,Alconbury,Alconbury Weston,Barham,Bluntisham,Brampton,Broughton,Buckworth,Bythorn,Catworth,Colne,Coppingford,Covington,Earith,Easton,Ellington,Fenstanton,Glatton,Grafham,Great Gidding,gr |