Area Code +44-1665-(230000...239999) located in Alnwick, Northumberland (NBL), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1665 Subscriber Number From : 230000 Subscriber Number To : 239999 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 : VoIP-Un 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 : NBL Region Name : Northumberland City : Alnwick Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 55.4100 Longitude : -1.7100 ‹ previous : +44-1665-(220000...229999) next › : +44-1665-(240000...249999) Dialling Instructions For trunk calls: 0 1665 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1665 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +44-1665-230000 / 0044-1665-230000 (01665-230000 / 0-1665-230000) +44-1665-230001 / 0044-1665-230001 (01665-230001 / 0-1665-230001) +44-1665-230002 / 0044-1665-230002 (01665-230002 / 0-1665-230002) +44-1665-230003 / 0044-1665-230003 (01665-230003 / 0-1665-230003) +44-1665-230004 / 0044-1665-230004 (01665-230004 / 0-1665-230004) ...+44-1665-xxxxxx / 0044-1665-xxxxxx (01665-xxxxxx / 0-1665-xxxxxx) ...+44-1665-239995 / 0044-1665-239995 (01665-239995 / 0-1665-239995) +44-1665-239996 / 0044-1665-239996 (01665-239996 / 0-1665-239996) +44-1665-239997 / 0044-1665-239997 (01665-239997 / 0-1665-239997) +44-1665-239998 / 0044-1665-239998 (01665-239998 / 0-1665-239998) +44-1665-239999 / 0044-1665-239999 (01665-239999 / 0-1665-239999)