+44-1509-(423000...423999): Loughborough, Leicestershire (LEC) Read more about +44-1509-(423000...423999)
+44-161-(4160000...4169999): Manchester, Manchester (MAN) Read more about +44-161-(4160000...4169999)
+44-1733-(730000...730999): Peterborough, Peterborough (PTE) Read more about +44-1733-(730000...730999)
+44-1908-(929000...929999): Milton Keynes, Milton Keynes (MIK) Read more about +44-1908-(929000...929999)
+44-20-(35870000...35879999): London, City of London (LND) Read more about +44-20-(35870000...35879999)