+44-20-(33870000...33879999): London, City of London (LND) Read more about +44-20-(33870000...33879999)
+44-8431-(350000...359999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(350000...359999)
+44-8431-(380000...389999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(380000...389999)
+44-8431-(390000...399999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8431-(390000...399999)
+44-8446-(370000...379999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8446-(370000...379999)
+44-8447-(690000...699999): Special Services basic rate: up to and including 5p for BT customers (non-internet) Read more about +44-8447-(690000...699999)
+44-8455-(400000...409999): Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers Read more about +44-8455-(400000...409999)
+44-8702-(560000...569999): Special Services higher rate: BT’s Standard National Call Retail Price for BT customers Read more about +44-8702-(560000...569999)
+44-8715-(320000...329999): Special Services higher rate: up to and including 10p for BT customers (non-internet) Read more about +44-8715-(320000...329999)
