Area Code +44-1777-(231000...231999) located in Retford, Northamptonshire (NTH), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1777 Subscriber Number From : 231000 Subscriber Number To : 231999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Nexbridge Communications 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) Region Code : NTH Region Name : Northamptonshire City : Retford Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 53.3200 Longitude : -0.9400 ‹ previous : +44-1777-(230000...230999) next › : +44-1777-(232000...232999) Dialling Instructions For trunk calls: 0 1777 231000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1777 231000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 231000 ~ 231999 (Count: 1,000) Example: +44-1777-231000 / 0044-1777-231000 (01777-231000 / 0-1777-231000) +44-1777-231001 / 0044-1777-231001 (01777-231001 / 0-1777-231001) +44-1777-231002 / 0044-1777-231002 (01777-231002 / 0-1777-231002) +44-1777-231003 / 0044-1777-231003 (01777-231003 / 0-1777-231003) +44-1777-231004 / 0044-1777-231004 (01777-231004 / 0-1777-231004) ...+44-1777-xxxxxx / 0044-1777-xxxxxx (01777-xxxxxx / 0-1777-xxxxxx) ...+44-1777-231995 / 0044-1777-231995 (01777-231995 / 0-1777-231995) +44-1777-231996 / 0044-1777-231996 (01777-231996 / 0-1777-231996) +44-1777-231997 / 0044-1777-231997 (01777-231997 / 0-1777-231997) +44-1777-231998 / 0044-1777-231998 (01777-231998 / 0-1777-231998) +44-1777-231999 / 0044-1777-231999 (01777-231999 / 0-1777-231999)