+44-20-(81110000...81119999): London, City of London (LND) Read more about +44-20-(81110000...81119999)
+44-8431-(230000...239999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(230000...239999)
+44-8450-(660000...669999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8450-(660000...669999)
+44-8450-(670000...679999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8450-(670000...679999)
+44-8450-(680000...689999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8450-(680000...689999)
+44-8450-(690000...699999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8450-(690000...699999)
+44-8451-(700000...709999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8451-(700000...709999)
+44-8702-(600000...609999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8702-(600000...609999)
+44-8726-(650000...659999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8726-(650000...659999)
