Area Code +44-8999-(640000...649999) located in Inbound Routing Codes, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 8999 Subscriber Number From : 640000 Subscriber Number To : 649999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : Opex Hosting Limited Click here to buy United Kingdom Area Code Database Other Information Language Code : en (English) Country Number : 826 (United Kingdom) Country Code : GB (United Kingdom) City : Inbound Routing Codes Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5100 Longitude : -0.1300 ‹ previous : +44-8999-(630000...639999) next › : +44-8999-(650000...659999) Dialling Instructions For trunk calls: 0 8999 640000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 8999 640000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 640000 ~ 649999 (Count: 10,000) Example: +44-8999-640000 / 0044-8999-640000 (08999-640000 / 0-8999-640000) +44-8999-640001 / 0044-8999-640001 (08999-640001 / 0-8999-640001) +44-8999-640002 / 0044-8999-640002 (08999-640002 / 0-8999-640002) +44-8999-640003 / 0044-8999-640003 (08999-640003 / 0-8999-640003) +44-8999-640004 / 0044-8999-640004 (08999-640004 / 0-8999-640004) ...+44-8999-xxxxxx / 0044-8999-xxxxxx (08999-xxxxxx / 0-8999-xxxxxx) ...+44-8999-649995 / 0044-8999-649995 (08999-649995 / 0-8999-649995) +44-8999-649996 / 0044-8999-649996 (08999-649996 / 0-8999-649996) +44-8999-649997 / 0044-8999-649997 (08999-649997 / 0-8999-649997) +44-8999-649998 / 0044-8999-649998 (08999-649998 / 0-8999-649998) +44-8999-649999 / 0044-8999-649999 (08999-649999 / 0-8999-649999)