+44-115-(8310000...8319999): Nottingham, Nottingham (NGM) Read more about +44-115-(8310000...8319999)
+44-117-(3510000...3519999): Bristol, City of Bristol (BST) Read more about +44-117-(3510000...3519999)
+44-121-(3380000...3389999): Birmingham, Birmingham (BIR) Read more about +44-121-(3380000...3389999)
+44-1223-(922000...922999): Cambridge, Cambridgeshire (CAM) Read more about +44-1223-(922000...922999)
+44-131-(5300000...5309999): Edinburgh, City of Edinburgh (EDH) Read more about +44-131-(5300000...5309999)