Area Code +49-203-(6688...66889999) 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 : 6688 Subscriber Number To : 66889999 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 : COLT Technology Services GmbH SD Voice 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 : 7 Latitude : 51.4300 Longitude : 6.7600 ‹ previous : +49-203-(667...66799999) next › : +49-203-(6689...66899999) Dialling Instructions For trunk calls: 0 203 6688 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 49 203 6688 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6688 ~ 66889999 (Count: 66,883,312) Example: +49-203-00006688 / 0049-203-00006688 (0203-00006688 / 0-203-00006688) +49-203-00006689 / 0049-203-00006689 (0203-00006689 / 0-203-00006689) +49-203-00006690 / 0049-203-00006690 (0203-00006690 / 0-203-00006690) +49-203-00006691 / 0049-203-00006691 (0203-00006691 / 0-203-00006691) +49-203-00006692 / 0049-203-00006692 (0203-00006692 / 0-203-00006692) ...+49-203-xxxxxxxx / 0049-203-xxxxxxxx (0203-xxxxxxxx / 0-203-xxxxxxxx) ...+49-203-66889995 / 0049-203-66889995 (0203-66889995 / 0-203-66889995) +49-203-66889996 / 0049-203-66889996 (0203-66889996 / 0-203-66889996) +49-203-66889997 / 0049-203-66889997 (0203-66889997 / 0-203-66889997) +49-203-66889998 / 0049-203-66889998 (0203-66889998 / 0-203-66889998) +49-203-66889999 / 0049-203-66889999 (0203-66889999 / 0-203-66889999)