+44-131-(5400000...5409999): Edinburgh, City of Edinburgh (EDH) Read more about +44-131-(5400000...5409999)
+44-1423-(279000...279999): Harrogate, North Yorkshire (NYK) Read more about +44-1423-(279000...279999)
+44-1438-(384000...384999): Stevenage, Hertfordshire (HRT) Read more about +44-1438-(384000...384999)
+44-1452-(479000...479999): Gloucester, Gloucestershire (GLS) Read more about +44-1452-(479000...479999)