Area Code +44-8721-(710000...719999) 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 8721 710000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8721 710000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
710000 ~ 719999 (Count: 10,000)
Example:
+44-8721-710000 / 0044-8721-710000 (08721-710000 / 0-8721-710000)
+44-8721-710001 / 0044-8721-710001 (08721-710001 / 0-8721-710001)
+44-8721-710002 / 0044-8721-710002 (08721-710002 / 0-8721-710002)
+44-8721-710003 / 0044-8721-710003 (08721-710003 / 0-8721-710003)
+44-8721-710004 / 0044-8721-710004 (08721-710004 / 0-8721-710004)
... +44-8721-xxxxxx / 0044-8721-xxxxxx (08721-xxxxxx / 0-8721-xxxxxx)
... +44-8721-719995 / 0044-8721-719995 (08721-719995 / 0-8721-719995)
+44-8721-719996 / 0044-8721-719996 (08721-719996 / 0-8721-719996)
+44-8721-719997 / 0044-8721-719997 (08721-719997 / 0-8721-719997)
+44-8721-719998 / 0044-8721-719998 (08721-719998 / 0-8721-719998)
+44-8721-719999 / 0044-8721-719999 (08721-719999 / 0-8721-719999)