+44-8442-(240000...249999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8442-(240000...249999)
+44-8442-(330000...339999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8442-(330000...339999)
+44-8442-(500000...509999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8442-(500000...509999)
+44-8442-(600000...609999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8442-(600000...609999)
+44-8442-(700000...709999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8442-(700000...709999)
+44-8448-(780000...789999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8448-(780000...789999)
+44-8451-(710000...719999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8451-(710000...719999)
+44-8709-(600000...609999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8709-(600000...609999)
+44-8715-(010000...019999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8715-(010000...019999)
