+44-121-(2920000...2929999): Birmingham, Birmingham (BIR) Lees verder over +44-121-(2920000...2929999)
+44-161-(9670000...9679999): Manchester, Manchester (MAN) Lees verder over +44-161-(9670000...9679999)
+44-20-(77890000...77899999): London, City of London (LND) Lees verder over +44-20-(77890000...77899999)
+44-191-(9010000...9019999): Durham, County Durham (DUR) Lees verder over +44-191-(9010000...9019999)