Area Code +49-203-(3975000...3975999) located in Duisburg, Nordrhein-Westfalen (NW), more detail is as below. Place International Dialing Code : 49 International Prefix : 00 National Prefix : 0 National Destination Code : 203 Subscriber Number From : 3975000 Subscriber Number To : 3975999 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 : BT Germany GmbH & Co. OHG 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 : Duisburg Timezone : Europe/Berlin Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 6 Latitude : 51.4300 Longitude : 6.7600 ‹ previous : +49-203-(39699000...39699999) next › : +49-203-(3976000...3976999) Dialling Instructions For trunk calls: 0 203 3975000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 49 203 3975000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3975000 ~ 3975999 (Count: 1,000) Example: +49-203-3975000 / 0049-203-3975000 (0203-3975000 / 0-203-3975000) +49-203-3975001 / 0049-203-3975001 (0203-3975001 / 0-203-3975001) +49-203-3975002 / 0049-203-3975002 (0203-3975002 / 0-203-3975002) +49-203-3975003 / 0049-203-3975003 (0203-3975003 / 0-203-3975003) +49-203-3975004 / 0049-203-3975004 (0203-3975004 / 0-203-3975004) ...+49-203-xxxxxxx / 0049-203-xxxxxxx (0203-xxxxxxx / 0-203-xxxxxxx) ...+49-203-3975995 / 0049-203-3975995 (0203-3975995 / 0-203-3975995) +49-203-3975996 / 0049-203-3975996 (0203-3975996 / 0-203-3975996) +49-203-3975997 / 0049-203-3975997 (0203-3975997 / 0-203-3975997) +49-203-3975998 / 0049-203-3975998 (0203-3975998 / 0-203-3975998) +49-203-3975999 / 0049-203-3975999 (0203-3975999 / 0-203-3975999)