+44-20-(35570000...35579999): London, London, City of (LND) Read more about +44-20-(35570000...35579999)
+44-8436-(270000...279999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(270000...279999)
+44-8436-(320000...329999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(320000...329999)
+44-8436-(350000...359999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(350000...359999)
