Area Code +45-21-(900000...999999) located in Mobile Telephony, more detail is as below. Place International Dialing Code : 45 International Prefix : 00 National Destination Code : 21 Subscriber Number From : 900000 Subscriber Number To : 999999 National Destination Code Length : 2 Uses National Destination Code : No National Significant Number Length : 8 Number Type : M (Mobile, Cellular) 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 : Mobile Telephony Timezone : Europe/Copenhagen Coordinated Universal Time : +01:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 8 Latitude : 55.6700 Longitude : 12.5500 ‹ previous : +45-21-(800000...899999) next › : +45-22-(100000...199999) Dialling Instructions For trunk calls: - 21 900000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 45 21 900000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 900000 ~ 999999 (Count: 100,000) Example: +45-21-900000 / 0045-21-900000 (21-900000 / -21-900000) +45-21-900001 / 0045-21-900001 (21-900001 / -21-900001) +45-21-900002 / 0045-21-900002 (21-900002 / -21-900002) +45-21-900003 / 0045-21-900003 (21-900003 / -21-900003) +45-21-900004 / 0045-21-900004 (21-900004 / -21-900004) ...+45-21-xxxxxx / 0045-21-xxxxxx (21-xxxxxx / -21-xxxxxx) ...+45-21-999995 / 0045-21-999995 (21-999995 / -21-999995) +45-21-999996 / 0045-21-999996 (21-999996 / -21-999996) +45-21-999997 / 0045-21-999997 (21-999997 / -21-999997) +45-21-999998 / 0045-21-999998 (21-999998 / -21-999998) +45-21-999999 / 0045-21-999999 (21-999999 / -21-999999)