Area Code +44-8999-(000000...009999) 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 : 000000 Subscriber Number To : 009999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : The Number UK 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 : +44-8726-(990000...999999) next › : +44-8999-(010000...019999) Dialling Instructions For trunk calls: 0 8999 000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 8999 000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 000000 ~ 009999 (Count: 10,000) Example: +44-8999-000000 / 0044-8999-000000 (08999-000000 / 0-8999-000000) +44-8999-000001 / 0044-8999-000001 (08999-000001 / 0-8999-000001) +44-8999-000002 / 0044-8999-000002 (08999-000002 / 0-8999-000002) +44-8999-000003 / 0044-8999-000003 (08999-000003 / 0-8999-000003) +44-8999-000004 / 0044-8999-000004 (08999-000004 / 0-8999-000004) ...+44-8999-xxxxxx / 0044-8999-xxxxxx (08999-xxxxxx / 0-8999-xxxxxx) ...+44-8999-009995 / 0044-8999-009995 (08999-009995 / 0-8999-009995) +44-8999-009996 / 0044-8999-009996 (08999-009996 / 0-8999-009996) +44-8999-009997 / 0044-8999-009997 (08999-009997 / 0-8999-009997) +44-8999-009998 / 0044-8999-009998 (08999-009998 / 0-8999-009998) +44-8999-009999 / 0044-8999-009999 (08999-009999 / 0-8999-009999)