+45 is the country code for Denmark.
Every phone number in Denmark starts with +45 when you call it from another country. From the US, dial 011 45, then the full number.
- Time there
- Copenhagen timeCentral European Time, UTC+1 to UTC+2
- From the US or Canada
- 011 45 34 41 23 45
- From the UK and most of Europe
- 00 45 34 41 23 45
- From Australia
- 0011 45 34 41 23 45
- From any mobile phone
- +45 34 41 23 45
- Inside Denmark
- 34 41 23 45
- Toll-free numbers
- Start with 80
Check a +45 number to see whether it is a mobile, a landline or VoIP.
Pick the country, enter the number without the +45, and the free check shows whether it is valid and whether it is a mobile, a landline or VoIP.
In Denmark, the phone number format for apps and SMS gateways is +45 followed by the full number.
| Written | Example | Where you see it |
|---|---|---|
| At home | 34 41 23 45 | Business cards, local ads |
| International | +45 34 41 23 45 | Websites, email signatures |
| E.164 | +4534412345 | APIs, SMS gateways, CRMs |
A missed call from a +45 number you don't know can be a one-ring scam, so check it before calling back.
One-ring scams call once and hang up, hoping you call back a line that bills you international or premium rates.
- Don't call back an international number you don't know. A real caller leaves a message or sends a text.
- Check the number in the box above. A number that is not a working mobile or landline in Denmark is a warning sign.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report it at reportfraud.ftc.gov, and see the FCC's guide to one-ring scams.
The codes next to +45 belong to other countries, so one wrong digit reaches a different place.
These are the questions people ask most about +45.
Which country uses the +45 country code?
Denmark. Every phone number there starts with +45 when it is dialed from abroad.
How do I call Denmark from the US?
Dial 011, then 45, then the full number. A mobile number written 34 41 23 45 at home is dialed 011 45 34 41 23 45 from the US, or +45 34 41 23 45 from any mobile phone.
Is +45 the same as 0045?
Yes. 00 is the exit code used in Denmark and most of the world, and the + on a mobile phone stands in for whatever exit code your network uses. From the US and Canada the exit code is 011 instead.
What time is it in Denmark?
Denmark is on Central European Time, UTC+1 in winter and UTC+2 in summer.
How do I check a +45 number that called me?
Enter it in the box above. The free check shows whether it is a valid number from Denmark and whether it is a mobile, a landline or a VoIP line, which helps you spot a one-ring scam before you call back.
Sources: Google's libphonenumber numbering data for lengths, mobile starts, area code places, first-issuing networks and time zones, as of September 24, 2026; the ITU list of country codes.