+44-8437-(230000...239999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8437-(230000...239999)
+44-8438-(250000...259999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8438-(250000...259999)
+44-8452-(220000...229999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8452-(220000...229999)
+44-8453-(190000...199999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8453-(190000...199999)
+44-8725-(480000...489999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(480000...489999)
+44-8725-(490000...499999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(490000...499999)
+44-8725-(600000...609999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(600000...609999)
+44-8725-(610000...619999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(610000...619999)
+44-8725-(620000...629999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8725-(620000...629999)
+44-9131-(500000...509999): Special Services, open ended time dependent charge or fixed fee up to £1.50 for BT customers Read more about +44-9131-(500000...509999)