Thai ID Numbers Explained: What Each of the 13 Digits Means
Source: CTN News l Chiang Rai Times
Published on: 2026-10-12 23:13
Last Updated on October 13, 2026 by Jeff Tomas Is a Thai ID number random, or do its digits reveal personal details? The 13 digits follow a set structure: they encode registration information, and the last digit checks whether the number follows a valid formula. That structure can offer useful clues, but it doesn't tell you everything about a person. The first digit indicates a registration category, while other digits relate to registration records. The number also doesn't establish someone's current address or identity on its own. Next, we'll look at what each part means, which first-digit categories are documented, and what the number can't tell you. For context, see how Thai government services use national ID numbers. Key Takeaways * Thailand's national ID number has 13 digits arranged in five parts, a format used within its civil registration system, as described in this World...
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