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Show HN: MMSI decoding for all entity types (ships, SAR, coast stations, etc.)

github.com

3 points by leoneljdias 2 days ago

Most MMSI decoders fail on special prefixes like 99 or ignore non-ship entities. mmsi-country-lookup follows ITU-R M.585-9 (2023), validates all MMSI formats, and returns both entity type and country/region.