+44-8435-(660000...669999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8435-(660000...669999)
+44-8435-(670000...679999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8435-(670000...679999)
+44-8435-(680000...689999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8435-(680000...689999)
+44-8435-(690000...699999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8435-(690000...699999)
+44-8438-(300000...309999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(300000...309999)
+44-8438-(320000...329999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(320000...329999)
+44-8453-(410000...419999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8453-(410000...419999)
+44-8702-(130000...139999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8702-(130000...139999)
+44-8724-(590000...599999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8724-(590000...599999)
+44-8724-(610000...619999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8724-(610000...619999)
