+44-8431-(000000...009999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(000000...009999)
+44-8431-(010000...019999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(010000...019999)
+44-8431-(020000...029999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(020000...029999)
+44-8431-(030000...039999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(030000...039999)
+44-8431-(040000...049999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(040000...049999)
+44-8431-(050000...059999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(050000...059999)
+44-8431-(060000...069999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(060000...069999)
+44-8431-(070000...079999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(070000...079999)
+44-8431-(080000...089999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(080000...089999)
+44-8431-(090000...099999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(090000...099999)