Denmark Country Code +45
The international country calling code for Denmark is +45. You will see this prefix on numbers used by shipping and logistics companies around major ports, renewable energy and engineering firms, pharmaceutical and life-science headquarters, government agencies, universities and individual mobile users throughout the kingdom.
Denmark uses a closed 8-digit numbering plan with no trunk prefix. There is no national “0” to drop: the same 8 digits are dialled inside the country and from abroad (with +45 in front for international calls). Numbers are often written as 12 34 56 78 or 1234 5678, but spacing is purely visual.
This page explains how Danish phone numbers are structured, how to dial +45 from overseas, how the Europe/Copenhagen time zone works (CET/CEST), and what to keep in mind when calling export partners, ports, tech companies and travellers in Denmark.
Tip: within the Danish realm there are territories with their own country codes: Faroe Islands +298 and Greenland +299. Those numbers are not +45 and have separate country pages.
Example business number (Copenhagen)
+45 33 12 34 56
Common format for headquarters, law firms and consultancies in the capital region.
Example mobile number
+45 20 12 34 56
Mobiles use the same 8-digit structure; many start with prefixes like 2x, 5x or 6x.
Time & region
CET/CEST · UTC+1 / UTC+2
Same time as Germany and Sweden for most of the year. IANA zone: Europe/Copenhagen.
Overview – where +45 is used
The code +45 belongs to Denmark, a Scandinavian country known for shipping, design, green energy and pharmaceuticals. You will encounter +45 numbers when dealing with ports and freight forwarders, wind-turbine and engineering suppliers, pharmaceutical and biotech companies, Danish subsidiaries of global groups, as well as hotels, conference venues and local residents.
Denmark is both highly digitalised and tightly integrated into the European Union. Many Danish contacts prefer digital channels like email, Teams or Slack, but voice calls and SMS to +45 mobiles are still essential for time-critical logistics, technical support and on-call services. Keeping +45 numbers in a clean, standardised format makes routing, logging and verification much simpler.
You may see numbers written as 12 34 56 78, 1234 5678 or (+45) 12 34 56 78. For your internal systems, the safest canonical form is +4512345678, and then your UI can apply a consistent spacing pattern for display.
Typical +45 use cases in business & travel
- Logistics & maritime – global shipping lines, freight forwarders and port agents in Copenhagen, Aarhus and other terminals.
- Energy & engineering – wind-turbine manufacturers, offshore projects, EPC contractors and technical support teams.
- Life sciences & services – pharmaceutical HQs, medical suppliers, IT consultancies and shared service centres.
When a Danish contact shares only an 8-digit number without the country code, you can safely treat it as a national +45 number – there is no leading 0 or regional area code to add.
Denmark phone number formats (+45)
Pattern: +45 XX XX XX XX (8 digits)Danish phone numbers are simple and uniform. There is no geographic area code system that you need to interpret, and no trunk prefix “0”. Every standard subscriber number has 8 digits, and the same 8 digits are used both inside Denmark and from abroad.
- • Country code: +45.
- • National format: 8 digits, typically written as 12 34 56 78 or 1234 5678.
- • International format: +45 12 34 56 78 – just add +45 in front of the same 8 digits.
- • Landlines vs mobiles: both use 8 digits; certain leading combinations are more common for mobiles vs fixed, but from a dialling perspective they are handled the same.
- • Special service numbers: Denmark also has short codes (for example 3-digit emergency and service numbers) that do not use the +45 pattern and work only domestically.
For validation, a simple rule works well: after stripping spaces, parentheses and hyphens, a Danish number should normally be +45 followed by 8 digits, or just 8 digits if you are working in a purely national context.
Sample Danish numbers
Illustrative onlyTypical corporate main line, used for reception and switchboard at central offices.
Example pattern for regional logistics hubs, factories and distribution centres.
Many customer-facing staff share a +45 mobile for calls, SMS and messaging apps with international clients.
How to dial Denmark (+45)
1. From the USA or Canada
To call a Danish number from the US or Canada:
- Dial 011 – international access code.
- Dial 45 – country code for Denmark.
- Dial the 8-digit Danish number.
Example (US → Copenhagen number 33 12 34 56): 011 45 33 12 34 56.
2. From Europe or many other countries
In many countries the international prefix is 00:
- Dial 00 – international prefix.
- Dial 45 – Denmark country code.
- Dial the 8-digit number.
Example (Germany → Danish mobile 20 12 34 56): 00 45 20 12 34 56.
3. Dialing inside Denmark & calling abroad
- Within Denmark: dial the 8-digit number directly, for both landlines and mobiles (e.g. 33 12 34 56 or 20 12 34 56).
- From Denmark to other countries: dial 00 + destination country code + national number (for example 00 44 20… for London, 00 1… for the US).
- Short codes: emergency (112) and service numbers are 3–4 digits and do not include +45.
There is no need to strip or add any “0” when switching between local and international formats; you always use the same 8-digit subscriber number with +45 in front when dialling from abroad.
Normalisation tip: if users type 0045 2012 3456,
+45-20-12-34-56 or 20123456, you can normalise all of these to
+4520123456 internally and render them in your preferred display style.
Time in Denmark – Europe/Copenhagen (CET / CEST)
Denmark follows Central European Time (CET), which is UTC+1, and Central European Summer Time (CEST), which is UTC+2 when daylight saving time is active. The IANA time zone identifier is Europe/Copenhagen.
In practice, Danish time usually matches Germany, Sweden, Norway and many other EU countries. During the summer, it is typically one hour ahead of the UK and Portugal, and several hours ahead of the Americas. This is important when you coordinate early-morning logistics calls or late-afternoon technical support.
Standard office hours are commonly 08:00–16:00 or 09:00–17:00 local time, but ports, warehouses and emergency support desks may run extended or 24/7 operations. For software, assigning Danish users to Europe/Copenhagen ensures clock changes are handled automatically.
Copenhagen compared with other cities
| City / region | Time zone | Typical offset vs Copenhagen |
|---|---|---|
| Copenhagen (Denmark) | Europe/Copenhagen (CET/CEST) | Reference |
| London | Europe/London | ≈ −1 hour (most of the year) |
| Stockholm | Europe/Stockholm | ≈ same time |
| Dubai | Asia/Dubai | ≈ +2 to +3 hours (seasonal) |
| New York | America/New_York | ≈ −6 to −7 hours (seasonal) |
| Shanghai | Asia/Shanghai | ≈ +7 hours (winter), +6 hours (summer) |
If your team supports Danish customers from other time zones, consider showing “Copenhagen time now” in your internal dashboards and scheduling tools so agents can quickly see whether they are calling within normal working hours.
Safety & emergency calls in Denmark
Denmark uses the standard European emergency number 112. Dialling 112 from any Danish landline or mobile connects you to an emergency operator who can dispatch police, fire and ambulance services.
In addition, there are dedicated numbers for non-emergency police contact and for medical advice in some regions, but for life-threatening situations, 112 is the key number to know. Emergency services are generally highly reliable and well-coordinated.
General emergency
112
Call 112 from any phone in Denmark for urgent police, fire or medical assistance. The operator can coordinate the appropriate response.
Police (non-emergency)
Local lines
For non-urgent matters, Danish police also maintain non-emergency contact numbers. Travellers usually receive these from local authorities, hotels or official websites.
Health advice
Regional services
In some regions, additional numbers are available for out-of-hours medical advice or on-call doctors. For true emergencies, always use 112 first.
Practical tip
Save key +45 contacts
Alongside 112, save the phone numbers of your hotel, local partner, Danish office and insurance emergency line – all in +45 format so they work even if your SIM or roaming changes.
Danish emergency operators can often assist in English in addition to Danish, especially in cities and tourist or business hubs.
Examples: calling +45 numbers
UK (London) → Copenhagen office
Copenhagen office number: 33 12 34 56.
- Dial 00 – international prefix from the UK.
- Dial 45 – country code for Denmark.
- Dial the 8-digit number 33 12 34 56.
Result: 00 45 33 12 34 56
Germany (Hamburg) → Danish mobile
Danish mobile: 20 12 34 56.
- Dial 00 – international prefix from Germany.
- Dial 45 – Denmark country code.
- Dial 20 12 34 56.
Result: 00 45 20 12 34 56
Inside Denmark – calling a local contact
Saved contact: +45 50 12 34 56.
- On most phones, you can dial it exactly as stored with the +45 prefix.
- Alternatively, you can dial just the 8 digits 50 12 34 56.
- Both methods reach the same subscriber; the +45 format is simply more portable internationally.
For CRMs and user databases, prefer the canonical form +4550123456.
Denmark country code +45 – FAQ
What is the country code for Denmark?
The international country calling code for Denmark is +45. When dialling from abroad, you normally call your international access code (00 or 011), then 45, then the 8-digit Danish number.
How long are Danish phone numbers?
Standard Danish landline and mobile numbers all have 8 digits in the national format. There is no separate area code. In full international form they are written as +45 XX XX XX XX, with +45 followed by 8 digits.
Does Denmark use a trunk prefix “0” for national calls?
No. Denmark uses a closed 8-digit plan without a trunk 0. You dial the same 8 digits inside the country as appear after +45 in international format.
How should I store Danish numbers in my CRM or app?
For reliability, store every Danish contact in E.164 format: +45 followed by the 8-digit number, with no spaces or punctuation (for example +4533123456 or +4520123456). Your UI can then format them as +45 33 12 34 56 or +45 20 12 34 56.
Is +45 used for Greenland or the Faroe Islands?
No. While Greenland and the Faroe Islands are part of the Kingdom of Denmark, they have their own country codes: +299 for Greenland and +298 for the Faroe Islands. Only phone numbers in mainland Denmark (and a few associated services) use +45.
What time zone is Denmark in?
Denmark uses Central European Time (CET), which is UTC+1, and Central European Summer Time (CEST), which is UTC+2 during the daylight saving period. The technical time zone identifier is Europe/Copenhagen.
Download the Denmark (+45) dialing & time zone cheat sheet
Export this page as a one-page PDF summarising Denmark country code +45, 8-digit number formats, the Europe/Copenhagen time zone and practical tips for storing and using +45 numbers in your systems.