Area Code +49-231-(4258000...4258999) located in Dortmund, Nordrhein-Westfalen (NW), more detail is as below. Place International Dialing Code : 49 International Prefix : 00 National Prefix : 0 National Destination Code : 231 Subscriber Number From : 4258000 Subscriber Number To : 4258999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 11 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : G-FIT Gesellschaft für Telekommun ikation mbh&Co.KG Click here to buy Germany Area Code Database Other Information Language Code : de (German) Country Number : 276 (Germany) Country Code : DE (Germany) Region Code : NW Region Name : Nordrhein-Westfalen City : Dortmund Timezone : Europe/Berlin Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 51.5200 Longitude : 7.4700 ‹ previous : +49-231-(4257000...4257999) next › : +49-231-(4260000...4260999) Dialling Instructions For trunk calls: 0 231 4258000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 49 231 4258000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4258000 ~ 4258999 (Count: 1,000) Example: +49-231-4258000 / 0049-231-4258000 (0231-4258000 / 0-231-4258000) +49-231-4258001 / 0049-231-4258001 (0231-4258001 / 0-231-4258001) +49-231-4258002 / 0049-231-4258002 (0231-4258002 / 0-231-4258002) +49-231-4258003 / 0049-231-4258003 (0231-4258003 / 0-231-4258003) +49-231-4258004 / 0049-231-4258004 (0231-4258004 / 0-231-4258004) ...+49-231-xxxxxxx / 0049-231-xxxxxxx (0231-xxxxxxx / 0-231-xxxxxxx) ...+49-231-4258995 / 0049-231-4258995 (0231-4258995 / 0-231-4258995) +49-231-4258996 / 0049-231-4258996 (0231-4258996 / 0-231-4258996) +49-231-4258997 / 0049-231-4258997 (0231-4258997 / 0-231-4258997) +49-231-4258998 / 0049-231-4258998 (0231-4258998 / 0-231-4258998) +49-231-4258999 / 0049-231-4258999 (0231-4258999 / 0-231-4258999)