Area Code +49-203-(3439000...3439999) 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 : 3439000 Subscriber Number To : 3439999 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 : Telefonica O2 Germany GmbH und 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-(3198000...3198999) next › : +49-203-(3464000...3464999) Dialling Instructions For trunk calls: 0 203 3439000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 49 203 3439000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3439000 ~ 3439999 (Count: 1,000) Example: +49-203-3439000 / 0049-203-3439000 (0203-3439000 / 0-203-3439000) +49-203-3439001 / 0049-203-3439001 (0203-3439001 / 0-203-3439001) +49-203-3439002 / 0049-203-3439002 (0203-3439002 / 0-203-3439002) +49-203-3439003 / 0049-203-3439003 (0203-3439003 / 0-203-3439003) +49-203-3439004 / 0049-203-3439004 (0203-3439004 / 0-203-3439004) ...+49-203-xxxxxxx / 0049-203-xxxxxxx (0203-xxxxxxx / 0-203-xxxxxxx) ...+49-203-3439995 / 0049-203-3439995 (0203-3439995 / 0-203-3439995) +49-203-3439996 / 0049-203-3439996 (0203-3439996 / 0-203-3439996) +49-203-3439997 / 0049-203-3439997 (0203-3439997 / 0-203-3439997) +49-203-3439998 / 0049-203-3439998 (0203-3439998 / 0-203-3439998) +49-203-3439999 / 0049-203-3439999 (0203-3439999 / 0-203-3439999)