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phone number standards
phone number standards
Sent TeamMar 8, 2026 / phone number standards / Article
Denmark Phone Numbers: Format, Area Code & Validation Guide
Explore Denmark's phone number system (+45): 8-digit format, number categories (geographic, mobile, toll-free 80), and international dialing. Includes validation regex: `^[2-9]\d{7}$`. Learn number portability rules and emergency numbers like 112, 114. Essential for developers.