+44-20-(35620000...35629999): London, City of London (LND) Read more about +44-20-(35620000...35629999)
+44-8436-(510000...519999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(510000...519999)
+44-8438-(150000...159999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(150000...159999)
+44-8438-(850000...859999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(850000...859999)
+44-8451-(670000...679999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8451-(670000...679999)
+44-8725-(230000...239999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(230000...239999)
+44-8725-(260000...269999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(260000...269999)
+44-8725-(270000...279999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(270000...279999)
+44-8725-(290000...299999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(290000...299999)