Area Code +44-55-(16540000...16549999) located in Corporate Numbers, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 55 Subscriber Number From : 16540000 Subscriber Number To : 16549999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : D (D) 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 : 51.5000 Longitude : -0.1300 ‹ previous : +44-55-(16510000...16519999) next › : +44-55-(16550000...16559999) Dialling Instructions For trunk calls: 0 55 16540000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 55 16540000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 16540000 ~ 16549999 (Count: 10,000) Example: +44-55-16540000 / 0044-55-16540000 (055-16540000 / 0-55-16540000) +44-55-16540001 / 0044-55-16540001 (055-16540001 / 0-55-16540001) +44-55-16540002 / 0044-55-16540002 (055-16540002 / 0-55-16540002) +44-55-16540003 / 0044-55-16540003 (055-16540003 / 0-55-16540003) +44-55-16540004 / 0044-55-16540004 (055-16540004 / 0-55-16540004) ...+44-55-xxxxxxxx / 0044-55-xxxxxxxx (055-xxxxxxxx / 0-55-xxxxxxxx) ...+44-55-16549995 / 0044-55-16549995 (055-16549995 / 0-55-16549995) +44-55-16549996 / 0044-55-16549996 (055-16549996 / 0-55-16549996) +44-55-16549997 / 0044-55-16549997 (055-16549997 / 0-55-16549997) +44-55-16549998 / 0044-55-16549998 (055-16549998 / 0-55-16549998) +44-55-16549999 / 0044-55-16549999 (055-16549999 / 0-55-16549999)