Area Code +31-566-(620000...629999) located in Irnsum, Fryslân (FR), more detail is as below. Place International Dialing Code : 31 International Prefix : 00 National Prefix : 0 National Destination Code : 566 Subscriber Number From : 620000 Subscriber Number To : 629999 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 : FR Region Name : Fryslân City : Irnsum Timezone : Europe/Amsterdam Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 53.0800 Longitude : 5.7900 ‹ previous : +31-566-(600000...609999) next › : +31-566-(630000...639999) Dialling Instructions For trunk calls: 0 566 620000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 31 566 620000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 620000 ~ 629999 (Count: 10,000) Example: +31-566-620000 / 0031-566-620000 (0566-620000 / 0-566-620000) +31-566-620001 / 0031-566-620001 (0566-620001 / 0-566-620001) +31-566-620002 / 0031-566-620002 (0566-620002 / 0-566-620002) +31-566-620003 / 0031-566-620003 (0566-620003 / 0-566-620003) +31-566-620004 / 0031-566-620004 (0566-620004 / 0-566-620004) ...+31-566-xxxxxx / 0031-566-xxxxxx (0566-xxxxxx / 0-566-xxxxxx) ...+31-566-629995 / 0031-566-629995 (0566-629995 / 0-566-629995) +31-566-629996 / 0031-566-629996 (0566-629996 / 0-566-629996) +31-566-629997 / 0031-566-629997 (0566-629997 / 0-566-629997) +31-566-629998 / 0031-566-629998 (0566-629998 / 0-566-629998) +31-566-629999 / 0031-566-629999 (0566-629999 / 0-566-629999)