Area Code +44-8453-(990000...999999) located in Special Services basic rate: BT’s Standard Local Call Retail Price for BT customers, more detail is as below.
Place
Other Information
Dialling Instructions
For trunk calls: 0 8453 990000 (Trunk Code + National Destination Code + Subscriber Number)
For international calls: 00 44 8453 990000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number)
Telephone Number List
990000 ~ 999999 (Count: 10,000)
Example:
+44-8453-990000 / 0044-8453-990000 (08453-990000 / 0-8453-990000)
+44-8453-990001 / 0044-8453-990001 (08453-990001 / 0-8453-990001)
+44-8453-990002 / 0044-8453-990002 (08453-990002 / 0-8453-990002)
+44-8453-990003 / 0044-8453-990003 (08453-990003 / 0-8453-990003)
+44-8453-990004 / 0044-8453-990004 (08453-990004 / 0-8453-990004)
... +44-8453-xxxxxx / 0044-8453-xxxxxx (08453-xxxxxx / 0-8453-xxxxxx)
... +44-8453-999995 / 0044-8453-999995 (08453-999995 / 0-8453-999995)
+44-8453-999996 / 0044-8453-999996 (08453-999996 / 0-8453-999996)
+44-8453-999997 / 0044-8453-999997 (08453-999997 / 0-8453-999997)
+44-8453-999998 / 0044-8453-999998 (08453-999998 / 0-8453-999998)
+44-8453-999999 / 0044-8453-999999 (08453-999999 / 0-8453-999999)