Area Code +49-231-(4492000...4492999) 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 : 4492000 Subscriber Number To : 4492999 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 : 01051 Telecom GmbH 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-(4469000...4469999) next › : +49-231-(4499000...4499999) Dialling Instructions For trunk calls: 0 231 4492000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 49 231 4492000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4492000 ~ 4492999 (Count: 1,000) Example: +49-231-4492000 / 0049-231-4492000 (0231-4492000 / 0-231-4492000) +49-231-4492001 / 0049-231-4492001 (0231-4492001 / 0-231-4492001) +49-231-4492002 / 0049-231-4492002 (0231-4492002 / 0-231-4492002) +49-231-4492003 / 0049-231-4492003 (0231-4492003 / 0-231-4492003) +49-231-4492004 / 0049-231-4492004 (0231-4492004 / 0-231-4492004) ...+49-231-xxxxxxx / 0049-231-xxxxxxx (0231-xxxxxxx / 0-231-xxxxxxx) ...+49-231-4492995 / 0049-231-4492995 (0231-4492995 / 0-231-4492995) +49-231-4492996 / 0049-231-4492996 (0231-4492996 / 0-231-4492996) +49-231-4492997 / 0049-231-4492997 (0231-4492997 / 0-231-4492997) +49-231-4492998 / 0049-231-4492998 (0231-4492998 / 0-231-4492998) +49-231-4492999 / 0049-231-4492999 (0231-4492999 / 0-231-4492999)