Area Code +44-8721-(730000...739999) 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 730000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8721 730000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
730000 ~ 739999 (Count: 10,000)
Example:
+44-8721-730000 / 0044-8721-730000 (08721-730000 / 0-8721-730000)
+44-8721-730001 / 0044-8721-730001 (08721-730001 / 0-8721-730001)
+44-8721-730002 / 0044-8721-730002 (08721-730002 / 0-8721-730002)
+44-8721-730003 / 0044-8721-730003 (08721-730003 / 0-8721-730003)
+44-8721-730004 / 0044-8721-730004 (08721-730004 / 0-8721-730004)
... +44-8721-xxxxxx / 0044-8721-xxxxxx (08721-xxxxxx / 0-8721-xxxxxx)
... +44-8721-739995 / 0044-8721-739995 (08721-739995 / 0-8721-739995)
+44-8721-739996 / 0044-8721-739996 (08721-739996 / 0-8721-739996)
+44-8721-739997 / 0044-8721-739997 (08721-739997 / 0-8721-739997)
+44-8721-739998 / 0044-8721-739998 (08721-739998 / 0-8721-739998)
+44-8721-739999 / 0044-8721-739999 (08721-739999 / 0-8721-739999)