Area Code +44-5511-(450000...459999) located in Corporate Numbers, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 5511 Subscriber Number From : 450000 Subscriber Number To : 459999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : S (Special) Carrier Name : BT 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 : Corporate Numbers 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 : +44-5511-(440000...449999) next › : +44-5511-(460000...469999) Dialling Instructions For trunk calls: 0 5511 450000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5511 450000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 450000 ~ 459999 (Count: 10,000) Example: +44-5511-450000 / 0044-5511-450000 (05511-450000 / 0-5511-450000) +44-5511-450001 / 0044-5511-450001 (05511-450001 / 0-5511-450001) +44-5511-450002 / 0044-5511-450002 (05511-450002 / 0-5511-450002) +44-5511-450003 / 0044-5511-450003 (05511-450003 / 0-5511-450003) +44-5511-450004 / 0044-5511-450004 (05511-450004 / 0-5511-450004) ...+44-5511-xxxxxx / 0044-5511-xxxxxx (05511-xxxxxx / 0-5511-xxxxxx) ...+44-5511-459995 / 0044-5511-459995 (05511-459995 / 0-5511-459995) +44-5511-459996 / 0044-5511-459996 (05511-459996 / 0-5511-459996) +44-5511-459997 / 0044-5511-459997 (05511-459997 / 0-5511-459997) +44-5511-459998 / 0044-5511-459998 (05511-459998 / 0-5511-459998) +44-5511-459999 / 0044-5511-459999 (05511-459999 / 0-5511-459999)