Area Code +44-8723-(820000...829999) 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 8723 820000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8723 820000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
820000 ~ 829999 (Count: 10,000)
Example:
+44-8723-820000 / 0044-8723-820000 (08723-820000 / 0-8723-820000)
+44-8723-820001 / 0044-8723-820001 (08723-820001 / 0-8723-820001)
+44-8723-820002 / 0044-8723-820002 (08723-820002 / 0-8723-820002)
+44-8723-820003 / 0044-8723-820003 (08723-820003 / 0-8723-820003)
+44-8723-820004 / 0044-8723-820004 (08723-820004 / 0-8723-820004)
... +44-8723-xxxxxx / 0044-8723-xxxxxx (08723-xxxxxx / 0-8723-xxxxxx)
... +44-8723-829995 / 0044-8723-829995 (08723-829995 / 0-8723-829995)
+44-8723-829996 / 0044-8723-829996 (08723-829996 / 0-8723-829996)
+44-8723-829997 / 0044-8723-829997 (08723-829997 / 0-8723-829997)
+44-8723-829998 / 0044-8723-829998 (08723-829998 / 0-8723-829998)
+44-8723-829999 / 0044-8723-829999 (08723-829999 / 0-8723-829999)