+44-8455-(290000...299999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8455-(290000...299999)
+44-8718-(260000...269999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8718-(260000...269999)
+44-8721-(500000...509999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(500000...509999)
+44-8721-(510000...519999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(510000...519999)
+44-8721-(520000...529999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(520000...529999)
+44-8721-(530000...539999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(530000...539999)
+44-8721-(540000...549999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(540000...549999)
+44-8721-(550000...559999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8721-(550000...559999)
