Area Code +44-8999-(600000...609999) 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 : 600000 Subscriber Number To : 609999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : Oxygen8 Communications 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 : +44-8999-(590000...599999) next › : +44-8999-(610000...619999) Dialling Instructions For trunk calls: 0 8999 600000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 8999 600000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 600000 ~ 609999 (Count: 10,000) Example: +44-8999-600000 / 0044-8999-600000 (08999-600000 / 0-8999-600000) +44-8999-600001 / 0044-8999-600001 (08999-600001 / 0-8999-600001) +44-8999-600002 / 0044-8999-600002 (08999-600002 / 0-8999-600002) +44-8999-600003 / 0044-8999-600003 (08999-600003 / 0-8999-600003) +44-8999-600004 / 0044-8999-600004 (08999-600004 / 0-8999-600004) ...+44-8999-xxxxxx / 0044-8999-xxxxxx (08999-xxxxxx / 0-8999-xxxxxx) ...+44-8999-609995 / 0044-8999-609995 (08999-609995 / 0-8999-609995) +44-8999-609996 / 0044-8999-609996 (08999-609996 / 0-8999-609996) +44-8999-609997 / 0044-8999-609997 (08999-609997 / 0-8999-609997) +44-8999-609998 / 0044-8999-609998 (08999-609998 / 0-8999-609998) +44-8999-609999 / 0044-8999-609999 (08999-609999 / 0-8999-609999)