+44-8446-(280000...289999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8446-(280000...289999)
+44-8446-(380000...389999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8446-(380000...389999)
+44-8446-(420000...429999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8446-(420000...429999)
+44-8447-(150000...159999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8447-(150000...159999)
+44-8447-(890000...899999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8447-(890000...899999)
+44-8454-(690000...699999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8454-(690000...699999)
+44-8712-(860000...869999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8712-(860000...869999)
+44-8715-(380000...389999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8715-(380000...389999)
