Area Code +44-121-(1230000...1239999) located in Birmingham, Birmingham (BIR), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 121 Subscriber Number From : 1230000 Subscriber Number To : 1239999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : Vodafone Ltd (C&W) 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 : BIR Region Name : Birmingham City : Birmingham Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 52.4800 Longitude : -1.8900 ‹ previous : +44-121-(1210000...1219999) next › : +44-121-(1310000...1319999) Dialling Instructions For trunk calls: 0 121 1230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 121 1230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 1230000 ~ 1239999 (Count: 10,000) Example: +44-121-1230000 / 0044-121-1230000 (0121-1230000 / 0-121-1230000) +44-121-1230001 / 0044-121-1230001 (0121-1230001 / 0-121-1230001) +44-121-1230002 / 0044-121-1230002 (0121-1230002 / 0-121-1230002) +44-121-1230003 / 0044-121-1230003 (0121-1230003 / 0-121-1230003) +44-121-1230004 / 0044-121-1230004 (0121-1230004 / 0-121-1230004) ...+44-121-xxxxxxx / 0044-121-xxxxxxx (0121-xxxxxxx / 0-121-xxxxxxx) ...+44-121-1239995 / 0044-121-1239995 (0121-1239995 / 0-121-1239995) +44-121-1239996 / 0044-121-1239996 (0121-1239996 / 0-121-1239996) +44-121-1239997 / 0044-121-1239997 (0121-1239997 / 0-121-1239997) +44-121-1239998 / 0044-121-1239998 (0121-1239998 / 0-121-1239998) +44-121-1239999 / 0044-121-1239999 (0121-1239999 / 0-121-1239999)