+44-115-(8620000...8629999): Nottingham, Nottingham (NGM) Read more about +44-115-(8620000...8629999)
+44-116-(3760000...3769999): Leicester, Leicestershire (LEC) Read more about +44-116-(3760000...3769999)
+44-117-(2210000...2219999): Bristol, City of Bristol (BST) Read more about +44-117-(2210000...2219999)
+44-121-(6450000...6459999): Birmingham, Birmingham (BIR) Read more about +44-121-(6450000...6459999)
+44-1223-(970000...970999): Cambridge, Cambridgeshire (CAM) Read more about +44-1223-(970000...970999)
+44-1225-(668000...668999): Bath, Bath and North East Somerset (BAS) Read more about +44-1225-(668000...668999)