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Updated July 22, 2026
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Worried about surprise roaming bills or not being able to reach people when you land in Denmark? This guide gives you the practical steps to call, receive calls and keep costs down-whether you use Wi-Fi, a local SIM or your usual mobile plan.
- Denmark country code: +45 (eight-digit local numbers)
- Use “+” or your countrys international access code before 45 when calling from abroad
- Wi-Fi calls and app-to-app calls are usually free; VoIP to landlines can incur small fees
- Buying a local data SIM or eSIM often saves more than roaming for stays over a few days
How can conversations be free in Denmark?
Theyre free when the call stays on the internet. If both people use the same internet-based service (WhatsApp, FaceTime, Signal, Messenger audio, Zoom or Skype), voice and video calls use data instead of the mobile voice network and cost nothing beyond the underlying data connection.
Key points:
- App-to-app calls are free over Wi-Fi or your mobile data allowance.
- VoIP providers (e.g. SkypeOut, SIP services) can place calls to Danish landlines or mobiles-these usually charge per minute for calling regular numbers.
- Some handset features called “Wi-Fi calling” let your phone route ordinary cellular calls over Wi-Fi but still show your normal number; the call is charged like a normal call by your operator unless the operator treats Wi-Fi calls as free.
If you plan to rely on internet calling, make sure you have a reliable broadband provider or mobile data connection-see the best internet providers in Denmark for options.
How do you use Wi-Fi and mobile internet to call Denmark?
There are two practical routes: use an app (WhatsApp, FaceTime, Signal, Skype, Zoom) or enable Wi-Fi calling on your phone. Follow these steps to set up and dial correctly.
- Choose the app you and your contacts already have (WhatsApp/FaceTime often easiest for friends and family).
- Connect to a secure Wi-Fi network or turn on mobile data. If using public Wi-Fi, consider a VPN for privacy (see VPNs for Denmark).
- If you prefer the phone app, enable Wi-Fi calling in Settings > Phone > Wi-Fi Calling (Android: Connections > Wi-Fi calling). Not all operators support it.
- Dial using the international format “+45” followed by the 8-digit Danish number when calling from abroad. From inside Denmark just dial the 8 digits.
Example: to call the Danish number 12 34 56 78 from outside Denmark, enter +45 12345678 on your phone. If your service offers local dial-in numbers, you may be able to call a local access number and connect to the Danish line via VoIP-check with your provider.
What are the benefits of using calling services in Denmark?
Using internet calling or dedicated calling services gives you:
- Lower cost: app-to-app calls are free and VoIP rates to landlines are often much cheaper than traditional international minutes.
- Better audio and video: HD voice and video are standard on most apps and on 4G/5G networks.
- Cross-device continuity: call on phone, tablet or laptop using the same account and contacts.
- Local presence: virtual numbers let you receive calls to a Danish number without living in Denmark.
Warning: emergency services (112) may not be reachable or may not report your exact location when you call using Wi-Fi calling or some VoIP apps. Always keep a mobile connection or landline available for emergencies.
Is there any alternative to free calls in Denmark?
Yes. If you prefer traditional telephony or need a reliable mobile voice line you can:
- Buy a local prepaid or postpaid SIM (very common). For comparisons see SIM cards in Denmark and read about mobiles in Denmark for newcomers.
- Get a local landline-useful for long-term stays or businesses, but typically more work to install.
- Use international calling cards or low-cost VoIP subscriptions if you regularly call landlines abroad.
For short trips, an eSIM or a few GB on a prepaid SIM is often the cheapest: you keep data for apps and can call via the internet instead of paying roaming rates.
What about International roaming in Denmark?
If your mobile plan is from another EU/EEA country it will often include roaming in Denmark without extra charges, subject to your operators fair-use policy. If your plan is from outside the EU/EEA, roaming can be expensive.
Good practices:
- Check with your home provider for roaming rates before you travel.
- Disable data roaming to avoid accidental charges and use Wi-Fi or a local SIM instead.
- Buy a local prepaid SIM or eSIM for longer stays-this usually gives better data prices for calls over apps.
Warning: some operators automatically enable roaming bundles that still cost money. Turn off automatic updates and background data when roaming to avoid unexpected bills.
Frequently Asked Questions about making calls to and from Denmark
Quick answers to common questions.
Is it difficult to make calls to Denmark?
No. If you use internet apps its often as easy as tapping a contact. For traditional calls, dial +45 followed by the 8-digit number. From within Denmark dial the 8 digits only.
What are Denmark’s calling codes?
The country code is +45 (you may also see 0045). Local Danish phone numbers are eight digits and do not use a trunk prefix.
What is the prefix for Denmark?
The international prefix is +45. Always use + when storing numbers so your phone handles exit codes automatically when you travel.
Can I make a call locally from a landline in Denmark?
Yes. Any landline or mobile plan from a Danish provider can call other local numbers-just dial the 8 digits. If you need help getting a line, check local providers for installation and pricing.
Are mobile phone calls in Denmark affordable?
Calling inside Denmark is usually affordable with local plans; international calls can be pricy on some plans. The most cost-effective option for international contact is internet calling over Wi-Fi or a local data SIM.
Tip: If youre staying more than a few days, a local prepaid SIM or eSIM often pays for itself in saved roaming charges and gives you enough data for VoIP apps.
Turn on Wi-Fi calling (or install WhatsApp/Signal/Skype), test a call to a friend over Wi-Fi, and if youre staying longer than a few days buy a local prepaid SIM.