Area Code +44-9031-(660000...669999) located in Special Services, open ended time dependent charge or fixed fee up to £1.50 for BT customers, more detail is as below.
Place
Other Information
Dialling Instructions
For trunk calls: 0 9031 660000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 9031 660000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
660000 ~ 669999 (Count: 10,000)
Example:
+44-9031-660000 / 0044-9031-660000 (09031-660000 / 0-9031-660000)
+44-9031-660001 / 0044-9031-660001 (09031-660001 / 0-9031-660001)
+44-9031-660002 / 0044-9031-660002 (09031-660002 / 0-9031-660002)
+44-9031-660003 / 0044-9031-660003 (09031-660003 / 0-9031-660003)
+44-9031-660004 / 0044-9031-660004 (09031-660004 / 0-9031-660004)
... +44-9031-xxxxxx / 0044-9031-xxxxxx (09031-xxxxxx / 0-9031-xxxxxx)
... +44-9031-669995 / 0044-9031-669995 (09031-669995 / 0-9031-669995)
+44-9031-669996 / 0044-9031-669996 (09031-669996 / 0-9031-669996)
+44-9031-669997 / 0044-9031-669997 (09031-669997 / 0-9031-669997)
+44-9031-669998 / 0044-9031-669998 (09031-669998 / 0-9031-669998)
+44-9031-669999 / 0044-9031-669999 (09031-669999 / 0-9031-669999)