+44-8430-(000000...009999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8430-(000000...009999)
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+44-8430-(020000...029999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8430-(020000...029999)
+44-8430-(030000...039999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8430-(030000...039999)
+44-8430-(040000...049999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8430-(040000...049999)
+44-8443-(730000...739999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8443-(730000...739999)
+44-8443-(770000...779999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8443-(770000...779999)
+44-8443-(830000...839999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8443-(830000...839999)
