+44-8449-(260000...269999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8449-(260000...269999)
+44-8455-(890000...899999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8455-(890000...899999)
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+44-8717-(010000...019999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8717-(010000...019999)
+44-8720-(210000...219999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(210000...219999)
+44-8720-(330000...339999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8720-(330000...339999)
