Denmark country code, +45 explained.
Everything you need to call Denmark with Twiching — full dialing format, step-by-step guide, and Tier-1 CLI routes that land every call.
Denmark
Copenhagen · Europe
· COUNTRY INFO · VERIFIED
ISO Alpha-2
DK
Capital
Copenhagen
Region
Europe
Timezone
UTC+1
· DIALING GUIDE · VERIFIED
FULL DIAL FORMAT
011 · +45 · XXXXXXXX
How Denmark numbers break down
A complete number to Denmark follows this pattern. Twiching adds the exit and country codes automatically when you dial from the app.
EXIT CODE
Dial from the US/Canada to leave the country.
COUNTRY CODE
Routes the call directly into Denmark.
LOCAL NUMBER
The subscriber's local number.
COMPLETE NUMBER FORMAT
011 · +45 · XXXXXXXX
Denmark on the map
Copenhagen · Europe
ROUTE
Tier-1 Direct
CLI
Verified
ASR
60%+ min
SIP trunking and local numbers for Denmark
Instead of leasing a physical line in Denmark, a Twiching SIP trunk routes your existing PBX or softphone traffic through a local +45 number — same call quality, none of the on-the-ground infrastructure.
Local +45 caller ID
Calls display a recognisable Denmark number instead of an unfamiliar international one.
SIP trunking
Route your existing PBX or softphone through Twiching's Tier-1 trunk — no hardware swap.
Minutes to provision
Numbers activate in the dashboard the same day, with no on-the-ground carrier contract.
+45
Denmark · ready to provision today
Built for reliable delivery into Denmark
Denmark isn't treated as a secondary market — it runs on the identical direct-carrier routing and delivery guarantees as every other country in the directory.
Denmark
+45
191
Countries in directory
DENMARK INCLUDED
99.97%
Call delivery rate
STIR/SHAKEN
500+
Carrier interconnects
TIER-1 DIRECT
60%+
Guaranteed ASR
REAL-TIME ROUTING
How Denmark phone numbers are structured
Numbering Format
COUNTRY
+45
LOCAL
XXXXXXXX
Denmark uses a closed numbering plan under country code +45: subscribers are reached with a single 8-digit number after the country code, with no separate area code to dial.
Carriers & language
Denmark has 98% internet penetration and is served by 3 major mobile networks (TDC Group, Telenor Denmark, Telia Denmark). VoIP is permitted and regulated by DBA (Danish Business Authority / Erhvervsstyrelsen). The local currency is DKK and the primary language is Danish, which shape IVR prompts, SMS content, and business-hours handling.
Europe context
Most European numbering plans follow ITU-T E.164 with a national trunk prefix that is dropped for international dialing, and cross-border VoIP is widely supported across the region.
Skipping the exit code
Reaching Denmark from the US requires the 011 exit code ahead of +45 — skip it and the call won't connect.
Adding an area code that doesn't exist
Don't insert an area code for Denmark: it's a closed plan, so +45 plus the 8-digit number is the whole address.
Ignoring the time difference
Denmark runs on UTC+1. Check local hours before dialing so calls don't land outside business time.
Compliance, carriers & rates for Denmark
Permitted — DBA regulated
Regulated by DBA (Danish Business Authority / Erhvervsstyrelsen)
Denmark's regulatory posture under DBA (Danish Business Authority / Erhvervsstyrelsen) is permissive toward VoIP, meaning a business can start calling and texting into the country without a separate compliance process.
- VoIP providers must register with the Danish Business Authority under the Telecommunications Act.
- Emergency service access (112) is mandatory for all VoIP operators serving Danish subscribers.
- GDPR is strictly enforced by Datatilsynet for all electronic communications service providers.
Direct Tier-1 interconnect with TDC Group — no wholesale transit in between.
US → Denmark
$0.008/min
Denmark → US
$0.007/min
Billed per second, not rounded to the minute
How businesses use a Denmark number
Look like a local business
A +45 number with Denmark caller ID reads as domestic to the person picking up — unfamiliar international numbers get screened far more often.
Sales & support in one line
The same Denmark number handles inbound support and outbound sales calls, both landing on Tier-1 routes into TDC Group and the wider network.
Built for UTC+1 hours
Multi-country teams route Denmark calls to whoever's actually awake and working in UTC+1, without juggling separate numbers per shift.
SIP trunking for market entry
Stand up a Denmark presence on SIP trunking before committing to local infrastructure — the same number scales from a pilot to full local hiring.
FAQ
Calling Denmark — frequently asked questions
Denmark uses a closed plan: a single 8-digit subscriber number directly after the country code, with no separate prefix layer. Every number in the country is the same total length as a result.
Denmark uses a closed numbering plan with no leading trunk 0 to worry about — just the country code followed directly by the subscriber number. That makes the dial string identical whether you're calling from inside or outside the country.
Twiching rates to Denmark start at $0.008/min, and calls back from Denmark to the US start at $0.007/min. Both directions are billed per second rather than rounded up to the nearest minute, on Tier-1 routes throughout.
Denmark has 98% internet penetration, which is a useful signal for how reliably VoIP and SMS-based channels will perform there. Higher penetration generally means more consistent call quality and app-based delivery for messaging.
Denmark doesn't use a separate area code — the subscriber number follows the +45 country code directly. There's no prefix length to track since the format is the same for every number in the country.
Calling Denmark means dialing 011, then +45, instead of the domestic US format — plus accounting for the UTC+1 time difference. Domestic US calls skip both the exit code and the international country code entirely.
Full country code directory
Europe is fully covered in Twiching's 191-country directory. Jump to any of the markets below for the same level of detail shown on this Denmark page. All 190 other countries are listed below, Europe first.
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