+44-8451-(980000...989999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8451-(980000...989999)
+44-8704-(370000...379999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8704-(370000...379999)
+44-8719-(570000...579999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8719-(570000...579999)
+44-8720-(250000...259999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(250000...259999)
+44-8720-(270000...279999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(270000...279999)
+44-8720-(310000...319999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(310000...319999)
+44-8720-(410000...419999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(410000...419999)
+44-8720-(430000...439999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(430000...439999)
+44-9030-(650000...659999): Special Services, open ended time dependent charge or fixed fee up to £1.50 for BT customers Read more about +44-9030-(650000...659999)
+44-9030-(660000...669999): Special Services, open ended time dependent charge or fixed fee up to £1.50 for BT customers Read more about +44-9030-(660000...669999)