IMO Ship Number Checksum Validator
Validate 7-digit IMO ship identification numbers using weighted Modulo 10 check digit verification.
Sample IMO Numbers:
Valid IMO Ship Number
Official Identifier: IMO 9176187 | Check Digit: 7 (Expected: 7)
FAQ
Frequently Asked Questions
Everything you need to know about this tool
An IMO number is a unique 7-digit identifier assigned by IHS Markit under SOLAS regulations to ocean-going commercial cargo and passenger ships. Unlike ship names, an IMO number remains unchanged throughout a vessel’s lifetime.
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