Area Code +45-639-(20000...29999) located in Telephony/ISDN, more detail is as below. Place International Dialing Code : 45 International Prefix : 00 National Destination Code : 639 Subscriber Number From : 20000 Subscriber Number To : 29999 National Destination Code Length : 3 Uses National Destination Code : No National Significant Number Length : 8 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : TDC A/S Click here to buy Denmark Area Code Database Other Information Language Code : da (Danish) Country Number : 208 (Denmark) Country Code : DK (Denmark) City : Telephony/ISDN Timezone : Europe/Copenhagen Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : None Longitude : None ‹ previous : +45-639-(00000...09999) next › : +45-639-(30000...39999) Dialling Instructions For trunk calls: - 639 20000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 45 639 20000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20000 ~ 29999 (Count: 10,000) Example: +45-639-20000 / 0045-639-20000 (639-20000 / -639-20000) +45-639-20001 / 0045-639-20001 (639-20001 / -639-20001) +45-639-20002 / 0045-639-20002 (639-20002 / -639-20002) +45-639-20003 / 0045-639-20003 (639-20003 / -639-20003) +45-639-20004 / 0045-639-20004 (639-20004 / -639-20004) ...+45-639-xxxxx / 0045-639-xxxxx (639-xxxxx / -639-xxxxx) ...+45-639-29995 / 0045-639-29995 (639-29995 / -639-29995) +45-639-29996 / 0045-639-29996 (639-29996 / -639-29996) +45-639-29997 / 0045-639-29997 (639-29997 / -639-29997) +45-639-29998 / 0045-639-29998 (639-29998 / -639-29998) +45-639-29999 / 0045-639-29999 (639-29999 / -639-29999)