How to Call Denmark from US
How to Call a Landline in Denmark
Calling a Danish landline or mobile phone from the United States (USA) follows the same standard international format. Denmark uses a closed numbering plan, meaning there are no separate area codes. All phone numbers have 8 digits.
- Dial the US exit code: 011
- Dial Denmark's country code: 45
- Dial the 8-digit Danish phone number: [8-Digit Number]
For example, if you're calling a Danish number 12 34 56 78, you would dial: 011 45 12345678.
Whether it's a landline in Copenhagen, Aarhus, or a mobile phone anywhere in Denmark, the dialing format remains the same: 011 + 45 + [8-digit number].
Dialing a Denmark number:
How to Call a Mobile Phone in Denmark
As mentioned, Denmark uses an 8-digit closed numbering plan for all phones, including mobiles. You dial a mobile number exactly like a landline number.
- Dial the US exit code: 011
- Dial Denmark's country code: 45
- Dial the 8-digit Danish mobile number: [8-Digit Mobile Number]
For example, if the Danish mobile number is 23 45 67 89, you would dial: 011 45 23456789 from the USA.
Mobile numbers typically start with digits like 20-29, 30-31, 40-42, 50-55, 60-61, 71, 81, or 91-93, but this doesn't change the dialing procedure – you still dial the full 8 digits after the country code 45.
Dialing a Denmark mobile:
Denmark Area Codes (None)
Denmark utilizes a closed numbering plan. This means there are no separate area codes within the country. All telephone numbers, whether landline or mobile, have a standard length of 8 digits.
When calling Denmark from the USA, simply dial the US exit code (011), the Denmark country code (45), and then the complete 8-digit Danish phone number.
Format: 011 + 45 + [8-digit Danish number]
Mobile Phone Networks in Denmark
Denmark has a highly developed mobile network infrastructure with excellent coverage. The main mobile operators are:
- TDC Group (YouSee, Telmore)
- Telenor Denmark
- Telia Denmark
- 3 (Hi3G Denmark)
Mobile numbers are integrated into the national 8-digit numbering plan. While certain number ranges were historically associated with specific types of services or operators, number portability means you cannot reliably determine the operator solely based on the number prefix.
Common starting digits for mobile numbers include (but are not limited to): 20-29, 30-31, 40-42, 50-55, 60-61, 71, 81, 91-93. Remember, you always dial the full 8-digit number after 011 + 45.
Time Difference in Denmark
Denmark is in the Central European Time Zone (CET), which is UTC+1 during standard time. Denmark observes Daylight Saving Time (DST), known as Central European Summer Time (CEST), which is UTC+2. DST typically runs from the last Sunday in March to the last Sunday in October.
The time difference with the United States (USA) varies depending on US DST (approx. mid-March to early November) and Danish DST:
US Eastern Time (ET): Denmark is typically 6 hours ahead of ET.
(Example: 9 AM ET is 3 PM CET/CEST)
(Note: This can briefly become 5 or 7 hours during the weeks when one country observes DST but the other doesn't).
US Central Time (CT): Denmark is typically 7 hours ahead of CT.
US Mountain Time (MT): Denmark is typically 8 hours ahead of MT.
US Pacific Time (PT): Denmark is typically 9 hours ahead of PT.
(Example: 9 AM PT is 6 PM CET/CEST)
Always verify the current time difference before making a call, especially during DST transition periods in March/April and October/November.
Denmark's Phone System
Denmark boasts one of the most advanced and efficient telecommunications systems globally. Mobile phone penetration is extremely high, exceeding 100%, meaning many people have more than one mobile subscription. 4G/LTE coverage is extensive across the country, and 5G rollout is well underway by all major operators (TDC, Telenor, Telia, 3). Fixed-line broadband penetration is also very high, with widespread availability of high-speed fiber and cable internet. VoIP services and communication apps like WhatsApp, Messenger, and FaceTime are very popular for both domestic and international communication.
Best Times to Call Denmark
To find a convenient time to call Denmark from the USA, consider the typical 6-hour time difference with the US East Coast (ET).
Standard Danish business hours are usually Monday to Friday, from around 8:00 AM or 9:00 AM to 4:00 PM or 5:00 PM CET/CEST (UTC+1/+2).
The best window for calling from the USA is generally during the US morning. Aim for 8:00 AM to 11:00 AM US Eastern Time. This corresponds to 2:00 PM to 5:00 PM in Denmark, catching people during their afternoon business hours or just before they leave work.
Call Denmark For Less With Phone Card Choice
Calling Denmark from the United States (USA) using traditional phone services can be expensive. International calling cards offer a far more budget-friendly and reliable way to connect with family, friends, or business contacts in Denmark.
Our customers regularly make calls to numbers across Denmark, including cities like Copenhagen, Aarhus, Odense, and Aalborg, enjoying clear connections and significant savings on both landline and mobile calls thanks to the unified numbering plan.
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Using our service is simple:
Dial local access number
Call the local access number provided with your card (specific to the United States (USA)).
Enter your PIN
Input your unique PIN when prompted.
Dial Denmark number
Follow the format after entering your PIN:
For Landlines & Mobiles: 45 + [8-digit Danish number]
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