+44-1273-(800000...800999): Brighton, Brighton and Hove (BNH) Read more about +44-1273-(800000...800999)
+44-1342-(800000...809999): East Grinstead, West Sussex (WSX) Read more about +44-1342-(800000...809999)
+44-1908-(430000...439999): Milton Keynes, Milton Keynes (MIK) Read more about +44-1908-(430000...439999)
+44-20-(70440000...70449999): London, London, City of (LND) Read more about +44-20-(70440000...70449999)