All postcodes in County Londonderry

BT28 - Ballinderry Lower
BT45 - Ballyronan
BT45 - Bellaghy
BT45 - Castledawson
BT45 - Desertmartin
BT45 - Draperstown
BT45 - Fallaghloon
BT45 - Fallalea
BT45 - Knockloughrim
BT45 - Lavey
BT45 - Moneymore
BT45 - Tobermore
BT46 - Lisnamuck
BT46 - Swatragh
BT46 - Upperlands
BT47 - Claudy
BT47 - Derry
BT47 - Dungiven
BT47 - Eglinton
BT47 - Feeny
BT47 - Londonderry
BT47 - New Buildings
BT47 - Park
BT47 - Waterside
BT48 - Ballynagard
BT48 - Cityside
BT48 - Coshquin
BT48 - Culmore
BT48 - Rosemount
BT48 - The Collon
BT49 - Ballykelly
BT51 - Aghadowey
BT51 - Articlave
BT51 - Bellany
BT51 - Blackhill
BT51 - Castlerock
BT51 - Castleroe
BT51 - Garvagh
BT51 - Kilrea
BT51 - Macosquin
BT51 - Ringsend
BT52 - Ballyvelton
BT52 - Cloyfin