+44-20-(35700000...35709999): London, City of London (LND) Read more about +44-20-(35700000...35709999)
+44-8436-(520000...529999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(520000...529999)
+44-8438-(450000...459999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(450000...459999)
+44-8438-(460000...469999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(460000...469999)
+44-8438-(470000...479999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(470000...479999)
+44-8438-(480000...489999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(480000...489999)
+44-8452-(530000...539999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8452-(530000...539999)
+44-8701-(730000...739999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8701-(730000...739999)
+44-8726-(050000...059999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8726-(050000...059999)