Area Code +44-1204-(510000...519999) located in Bolton, Bolton (BOL), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 1204 Subscriber Number From : 510000 Subscriber Number To : 519999 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 : 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) Region Code : BOL Region Name : Bolton City : Bolton Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 53.5800 Longitude : -2.4300 ‹ previous : +44-1204-(500000...509999) next › : +44-1204-(520000...529999) Dialling Instructions For trunk calls: 0 1204 510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 1204 510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 510000 ~ 519999 (Count: 10,000) Example: +44-1204-510000 / 0044-1204-510000 (01204-510000 / 0-1204-510000) +44-1204-510001 / 0044-1204-510001 (01204-510001 / 0-1204-510001) +44-1204-510002 / 0044-1204-510002 (01204-510002 / 0-1204-510002) +44-1204-510003 / 0044-1204-510003 (01204-510003 / 0-1204-510003) +44-1204-510004 / 0044-1204-510004 (01204-510004 / 0-1204-510004) ...+44-1204-xxxxxx / 0044-1204-xxxxxx (01204-xxxxxx / 0-1204-xxxxxx) ...+44-1204-519995 / 0044-1204-519995 (01204-519995 / 0-1204-519995) +44-1204-519996 / 0044-1204-519996 (01204-519996 / 0-1204-519996) +44-1204-519997 / 0044-1204-519997 (01204-519997 / 0-1204-519997) +44-1204-519998 / 0044-1204-519998 (01204-519998 / 0-1204-519998) +44-1204-519999 / 0044-1204-519999 (01204-519999 / 0-1204-519999)