Voice
How to Call Denmark
This guide provides helpful tips for calling Denmark from the U.S. Learn how to make calls to Denmark with confidence.
The Denmark country code is +45. Use +45 as the international dialing prefix for calls to Denmark from any country, then dial the 8 digits after +45. The ISO codes are DK and DNK.
DENMARK COUNTRY CODE
+45
Dial before any danish number from outside Denmark
What is the country code for Denmark?
| Quick reference | Detail | When to use |
|---|---|---|
| Country Code | +45 | Dial before a danish number |
| ISO Code | DK / DNK | Country identifiers |
| International Prefix | +45 | Use for calls into Denmark |
| Trunk Prefix | 0 | Use only for domestic dialing |
| Number Length | 8 digits after +45 | Area or mobile code plus subscriber number |
| Emergency | 112 | Police, fire, and ambulance |
Good to know: Denmark uses 8-digit national numbers with no area codes. Mobile numbers start with 2, 4, or 5.
For danish numbers, there is no trunk prefix or area code. Dial the national number directly within Denmark. From another country, place +45 before the number.
How to call Denmark
Use this universal format: exit code, then +45, then the 8 digits after +45.
- Dial your exit code, or press + on a mobile phone.
- Dial 45 for Denmark.
- Dial the 8 digits after +45.
International call flow:
1. Exit code
→
2. +45
→
3. Local number
→
4. Dial
Exit code by country
US and Canada
011
UK and most of Europe
00
Australia
0011
Mobile, any country
+
Danish numbers have no area codes. 8-digit national numbers dial directly.
Dialing format and examples
The +CC format works on any mobile phone. Use +45 32 12 34 56 for a Copenhagen landline and +45 20 12 34 56 for a mobile number.
| Origin | Format | Example |
|---|---|---|
| US/Canada | 011 45 8 digits after +45 | 011 45 3212 3456 |
| UK | 00 45 8 digits after +45 | 00 45 3212 3456 |
| Australia | 0011 45 8 digits after +45 | 0011 45 3212 3456 |
| Mobile, any country | +45 8 digits after +45 | +45 3212 3456 |
For other dialing guides, see How to call the Netherlands or How to call Germany.
What a Denmark number looks like
A danish phone number in international format has two parts. The country code +45 and the national number.
Landline
+45 | 32 | 1234567
Mobile
+45 | 20 | 1234567
Number format and length
After +45, danish numbers contain 8 digits after +45. Landlines and mobile numbers follow the national format.
| Number type | Pattern | Example |
|---|---|---|
| Copenhagen landline | +45 XX XX XX XX | +45 32 12 34 56 |
| Aarhus landline | +45 XX XX XX XX | +45 32 12 34 56 |
| Danish mobile | +45 XX XX XX XX | +45 20 12 34 56 |
Format a Denmark number for WhatsApp
For WhatsApp, save the Danish number in international format with +45 and no spaces. A Danish mobile written as 20 12 34 56 becomes +45 20 12 34 56. You can also save it without spaces as +4520123456.
If your team needs a danish number for customer calls or local presence, see Telnyx Phone Numbers for numbers in 140+ countries with instant activation.
Good to know: WhatsApp needs the full international format. Danish numbers have no trunk prefix to drop.
Denmark number formats and emergency numbers
Danish numbers follow the national format. From another country, place +45 before the national number.
| City or region | Domestic code | International code |
|---|---|---|
| Copenhagen | (none) | +45 |
| Aarhus | (none) | +45 |
| Odense | (none) | +45 |
| Aalborg | (none) | +45 |
| Esbjerg | (none) | +45 |
| Roskilde | (none) | +45 |
| Number type | Dialed in Denmark | Notes |
|---|---|---|
| Emergency | 112 | Police, fire, ambulance |
| Toll-free | 0800 | Free from danish lines, not always reachable from abroad |
| Premium rate | 0900 | Can cost more than standard calls |
| Business numbers | 085 | Non-geographic business lines |
Keep in mind: 112 works inside Denmark only. If you are outside Denmark, call the emergency number for your current location. Some service numbers may not accept calls from outside Denmark.
Cost and best time to call Denmark
Call cost and timing depend on your carrier, your country, and whether you call a landline, mobile, toll-free, or premium-rate number.
How much does it cost to call Denmark
For business calling, Telnyx SIP Trunking gives per-minute pricing for calls to danish landline and mobile destinations with usage-based pricing and no monthly minimums. Your total cost can change based on call volume, destination type, and fees from your current provider.
| Calling method | Cost pattern | Best for |
|---|---|---|
| Mobile carrier | Plan rate or international fee | Personal calls |
| International add-on | Recurring fee plus lower per-minute rates | Repeat callers |
| VoIP or SIP | Per-minute pricing by destination type | Teams and high-volume calling |
Good to know: Ask your provider whether danish mobile calls are priced differently from landline calls. They often are.
Time zones and best time to call
Denmark follows Central European Time, UTC+1, and Central European Summer Time, UTC+2, during daylight saving. For business calls, aim for 9:00 a.m. to 5:00 p.m. Danish time.
| Calling from | Offset from NL | Best call window |
|---|---|---|
| United Kingdom | DK offset varies | 8:00 a.m. to 4:00 p.m. UK time |
| US Eastern | DK offset varies | 9:00 a.m. to 11:00 a.m. ET |
| US Pacific | DK offset varies | 6:00 a.m. to 8:00 a.m. PT |
Good to know: Time differences can shift for short periods because daylight saving dates do not match in every country.
Is calling Denmark free
Calling Denmark is not automatically free. It may be free if your mobile or landline plan includes Denmark calling, if both parties use an app over data, or if a company gives you a reachable local number.
WhatsApp and similar apps do not charge per minute for app-to-app calls, but your internet or roaming plan may charge for data. Business callers can use SIP Trunking with usage-based pricing for the lowest per-minute rates.
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