+44-115-(9030000...9039999): Nottingham, Nottingham (NGM) Read more about +44-115-(9030000...9039999)
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+44-1223-(731000...731999): Cambridge, Cambridgeshire (CAM) Read more about +44-1223-(731000...731999)
+44-1223-(732000...732999): Cambridge, Cambridgeshire (CAM) Read more about +44-1223-(732000...732999)