+44-121-(5700000...5709999): Birmingham, Birmingham (BIR) Read more about +44-121-(5700000...5709999)
+44-131-(6400000...6409999): Edinburgh, City of Edinburgh (EDH) Read more about +44-131-(6400000...6409999)
+44-161-(4110000...4119999): Manchester, Manchester (MAN) Read more about +44-161-(4110000...4119999)
+44-1759-(763000...763999): Pocklington, East Riding of Yorkshire (ERY) Read more about +44-1759-(763000...763999)
+44-20-(34990000...34999999): London, City of London (LND) Read more about +44-20-(34990000...34999999)