Area Code +44-8717-(770000...779999) located in Special Services higher rate: up to and including 10p for BT customers (non-internet), more detail is as below.
Place
Other Information
Dialling Instructions
For trunk calls: 0 8717 770000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8717 770000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
770000 ~ 779999 (Count: 10,000)
Example:
+44-8717-770000 / 0044-8717-770000 (08717-770000 / 0-8717-770000)
+44-8717-770001 / 0044-8717-770001 (08717-770001 / 0-8717-770001)
+44-8717-770002 / 0044-8717-770002 (08717-770002 / 0-8717-770002)
+44-8717-770003 / 0044-8717-770003 (08717-770003 / 0-8717-770003)
+44-8717-770004 / 0044-8717-770004 (08717-770004 / 0-8717-770004)
... +44-8717-xxxxxx / 0044-8717-xxxxxx (08717-xxxxxx / 0-8717-xxxxxx)
... +44-8717-779995 / 0044-8717-779995 (08717-779995 / 0-8717-779995)
+44-8717-779996 / 0044-8717-779996 (08717-779996 / 0-8717-779996)
+44-8717-779997 / 0044-8717-779997 (08717-779997 / 0-8717-779997)
+44-8717-779998 / 0044-8717-779998 (08717-779998 / 0-8717-779998)
+44-8717-779999 / 0044-8717-779999 (08717-779999 / 0-8717-779999)