+44-121-(1210000...1219999): Birmingham, Birmingham (BIR) Read more about +44-121-(1210000...1219999)
+44-121-(1400000...1409999): Birmingham, Birmingham (BIR) Read more about +44-121-(1400000...1409999)
+44-121-(2600000...2609999): Birmingham, Birmingham (BIR) Read more about +44-121-(2600000...2609999)
+44-121-(2810000...2819999): Birmingham, Birmingham (BIR) Read more about +44-121-(2810000...2819999)
+44-121-(2950000...2959999): Birmingham, Birmingham (BIR) Read more about +44-121-(2950000...2959999)
+44-1223-(772000...772999): Cambridge, Cambridgeshire (CAM) Read more about +44-1223-(772000...772999)
+44-1225-(976000...976999): Bath, Bath and North East Somerset (BAS) Read more about +44-1225-(976000...976999)