Business Directories and Databases: Various online platforms and commercial databases (e.g., HitHorizons.com, which lists over 974,000 entities in Denmark) may list corporate phone numbers for Danish companies. These are typically for official business contact and are compiled from public company registrations or direct submissions.
Phone Number Validation and Verification Services: Various APIs and services exist that can validate the format, existence, and often the type (mobile, landline) of a Danish phone number. These are primarily tools for data hygiene and accuracy, ensuring the numbers you already possess are correct and active, rather than for generating new contacts.
Reverse Phone Lookup Services (Highly Restricted): Services that claim to offer reverse phone lookup often rely on user-contributed or scraped data. For Danish numbers, the legality and comprehensiveness of such services for personal data are severely limited by GDPR and national laws. A Danish phone number, even without a name, is considered personal data if the person can be identified through "all means reasonably likely to be used."
Denmark's data protection landscape is primarily defined by:
General Data Protection Regulation (GDPR) (EU 2016/679): As an EU member, Denmark strictly adheres to GDPR. Key principles include:
Lawfulness, Fairness, and Transparency: Any processing of united states of america phone number library personal data (including phone numbers) must have a valid legal basis (e.g., explicit consent, contractual necessity, legitimate interest) and be transparent to the data subject.
Purpose Limitation: Data collected for one specific purpose cannot be used for another without additional, explicit consent.
Data Minimization: Only necessary data should be collected and retained.
Data Subject Rights: Individuals have extensive rights, including access, rectification, erasure ("right to be forgotten"), restriction of processing, objection (especially to direct marketing), and data portability.
Danish Data Protection Act (Act No. 502 of May 23, 2018): This national law supplements and implements GDPR in Denmark. It includes specific provisions, such as treating data about deceased persons as personal data for 10 years after their death. The Danish Data Protection Agency (Datatilsynet) is the independent supervisory authority responsible for enforcing this Act and GDPR.
Act on Electronic Communications Networks and Services: This law governs telecommunications services and includes provisions related to direct marketing via electronic.