Area Code +45-991-(20000...29999) located in Telephony/ISDN, more detail is as below. Place International Dialing Code : 45 International Prefix : 00 National Destination Code : 991 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 : +45-991-(10000...19999) next › : +45-991-(30000...39999) Dialling Instructions For trunk calls: - 991 20000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 45 991 20000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20000 ~ 29999 (Count: 10,000) Example: +45-991-20000 / 0045-991-20000 (991-20000 / -991-20000) +45-991-20001 / 0045-991-20001 (991-20001 / -991-20001) +45-991-20002 / 0045-991-20002 (991-20002 / -991-20002) +45-991-20003 / 0045-991-20003 (991-20003 / -991-20003) +45-991-20004 / 0045-991-20004 (991-20004 / -991-20004) ...+45-991-xxxxx / 0045-991-xxxxx (991-xxxxx / -991-xxxxx) ...+45-991-29995 / 0045-991-29995 (991-29995 / -991-29995) +45-991-29996 / 0045-991-29996 (991-29996 / -991-29996) +45-991-29997 / 0045-991-29997 (991-29997 / -991-29997) +45-991-29998 / 0045-991-29998 (991-29998 / -991-29998) +45-991-29999 / 0045-991-29999 (991-29999 / -991-29999)