+44-20-(80000000...80009999): London, City of London (LND) Read more about +44-20-(80000000...80009999)
+44-116-(4580000...4589999): Leicester, Leicestershire (LEC) Read more about +44-116-(4580000...4589999)
+44-121-(7990000...7999999): Birmingham, Birmingham (BIR) Read more about +44-121-(7990000...7999999)
+44-1254-(955000...955999): Blackburn, Blackburn with Darwen (BBD) Read more about +44-1254-(955000...955999)