Denmark Phone Number Validator & Carrier Lookup
Denmark uses a closed 8-digit numbering plan with no geographic area codes and no national trunk prefix, so every number is dialled in full and its E.164 form is simply +45 followed by the eight digits. The mobile networks are run by TDC (retail brand YouSee), Telenor, Norlys and 3, alongside many resellers. Because numbers move freely between operators, use mode=current to resolve the operator now serving a ported number instead of the one that originally held it.
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Denmark phone number format
Denmark numbers carry the +45 country code and are written in full, with no separate national trunk prefix. Mobile and fixed-line ranges are distinguished by their leading digits and returned as a line_type you can filter on.
Major Denmark carriers
Denmark carriers are assigned in number ranges by the Danish Agency for Digital Government (Digitaliseringsstyrelsen) numbering plan, not a simple prefix — Veriphone returns the carrier a number belongs to, together with line type.
Questions about Denmark number validation
Which area code should I use for a Danish number?
None. Denmark abolished geographic area codes in 1989, and numbers are a flat 8 digits with no area code and no national trunk prefix to add or remove. You dial all eight digits from anywhere in the country, and the E.164 form is just +45 plus those eight digits — which is why Veriphone returns no fixed-line cities for Denmark.
Does Veriphone tell Danish mobile and landline numbers apart?
Yes. Denmark's number register designates every number series as primarily for fixed or primarily for mobile use, and Veriphone returns that designation as the line type. Because the register says primarily, a series can occasionally carry the other kind of service, and a ported number keeps the line type of the series it was allocated from.
Can I identify the operator from a Danish number's prefix?
Not reliably. Since portability launched in 2001 a number can move between operators while keeping its digits, so the prefix reflects only the original allocation. Standard lookups return that original operator; mode=current returns the operator currently serving the number after any porting.
How many digits is a valid Danish number, and what about a leading zero?
Always exactly eight digits after the +45 country code, with no operator or city prefix to strip. Danish numbers do not start with 0 or 1, so a leading 0 in submitted data is a formatting artefact rather than a trunk code to remove before validating.
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