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+44-8435-(960000...969999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8435-(960000...969999)
+44-8436-(560000...569999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8436-(560000...569999)
+44-8719-(820000...829999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8719-(820000...829999)