Area Code +44-8713-(660000...669999) 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 8713 660000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8713 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
660000 ~ 669999 (Count: 10,000)
Example:
+44-8713-660000 / 0044-8713-660000 (08713-660000 / 0-8713-660000)
+44-8713-660001 / 0044-8713-660001 (08713-660001 / 0-8713-660001)
+44-8713-660002 / 0044-8713-660002 (08713-660002 / 0-8713-660002)
+44-8713-660003 / 0044-8713-660003 (08713-660003 / 0-8713-660003)
+44-8713-660004 / 0044-8713-660004 (08713-660004 / 0-8713-660004)
... +44-8713-xxxxxx / 0044-8713-xxxxxx (08713-xxxxxx / 0-8713-xxxxxx)
... +44-8713-669995 / 0044-8713-669995 (08713-669995 / 0-8713-669995)
+44-8713-669996 / 0044-8713-669996 (08713-669996 / 0-8713-669996)
+44-8713-669997 / 0044-8713-669997 (08713-669997 / 0-8713-669997)
+44-8713-669998 / 0044-8713-669998 (08713-669998 / 0-8713-669998)
+44-8713-669999 / 0044-8713-669999 (08713-669999 / 0-8713-669999)