Area Code +31-595-(420000...429999) located in Warffum, Groningen (GR), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 595 Subscriber Number From : 420000 Subscriber Number To : 429999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : KPN B.V. Click here to buy Netherlands Area Code Database Other Information Language Code : nl (Dutch) Country Number : 528 (Netherlands) Country Code : NL (Netherlands) Region Code : GR Region Name : Groningen City : Warffum Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 53.4000 Longitude : 6.5600 ‹ previous : +31-595-(410000...419999) next › : +31-595-(430000...439999) Dialling Instructions For trunk calls: 0 595 420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 595 420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 420000 ~ 429999 (Count: 10,000) Example: +31-595-420000 / 0031-595-420000 (0595-420000 / 0-595-420000) +31-595-420001 / 0031-595-420001 (0595-420001 / 0-595-420001) +31-595-420002 / 0031-595-420002 (0595-420002 / 0-595-420002) +31-595-420003 / 0031-595-420003 (0595-420003 / 0-595-420003) +31-595-420004 / 0031-595-420004 (0595-420004 / 0-595-420004) ...+31-595-xxxxxx / 0031-595-xxxxxx (0595-xxxxxx / 0-595-xxxxxx) ...+31-595-429995 / 0031-595-429995 (0595-429995 / 0-595-429995) +31-595-429996 / 0031-595-429996 (0595-429996 / 0-595-429996) +31-595-429997 / 0031-595-429997 (0595-429997 / 0-595-429997) +31-595-429998 / 0031-595-429998 (0595-429998 / 0-595-429998) +31-595-429999 / 0031-595-429999 (0595-429999 / 0-595-429999)