Area Code +44-8721-(670000...679999) 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 670000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8721 670000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
670000 ~ 679999 (Count: 10,000)
Example:
+44-8721-670000 / 0044-8721-670000 (08721-670000 / 0-8721-670000)
+44-8721-670001 / 0044-8721-670001 (08721-670001 / 0-8721-670001)
+44-8721-670002 / 0044-8721-670002 (08721-670002 / 0-8721-670002)
+44-8721-670003 / 0044-8721-670003 (08721-670003 / 0-8721-670003)
+44-8721-670004 / 0044-8721-670004 (08721-670004 / 0-8721-670004)
... +44-8721-xxxxxx / 0044-8721-xxxxxx (08721-xxxxxx / 0-8721-xxxxxx)
... +44-8721-679995 / 0044-8721-679995 (08721-679995 / 0-8721-679995)
+44-8721-679996 / 0044-8721-679996 (08721-679996 / 0-8721-679996)
+44-8721-679997 / 0044-8721-679997 (08721-679997 / 0-8721-679997)
+44-8721-679998 / 0044-8721-679998 (08721-679998 / 0-8721-679998)
+44-8721-679999 / 0044-8721-679999 (08721-679999 / 0-8721-679999)