+44-1246-(805000...805999): Chesterfield, Derbyshire (DBY) Read more about +44-1246-(805000...805999)
+44-1248-(529000...529999): Bangor (Gwynedd), Gwynedd (GWN) Read more about +44-1248-(529000...529999)
+44-1250-(553000...553999): Blairgowrie, Perth and Kinross (PKN) Read more about +44-1250-(553000...553999)
+44-1254-(462000...462999): Blackburn, Blackburn with Darwen (BBD) Read more about +44-1254-(462000...462999)