+44-161-(3940000...3949999): Manchester, Manchester (MAN) Read more about +44-161-(3940000...3949999)
+44-191-(7210000...7219999): Sunderland, Sunderland (SND) Read more about +44-191-(7210000...7219999)
+44-20-(37690000...37699999): London, City of London (LND) Read more about +44-20-(37690000...37699999)
+44-20-(38070000...38079999): London, City of London (LND) Read more about +44-20-(38070000...38079999)
+44-23-(82280000...82289999): Southampton, Southampton (STH) Read more about +44-23-(82280000...82289999)