At 235 gross tons, Jakob Prei is the 79,928th largest of the 84,014 vessels in this registry that report a tonnage. The median across that set is 5,994 GT, so this hull is about 26 times smaller than the typical vessel on record here. The largest measures 499,167 GT.
Among the 612 research / surveys held here, it ranks 453rd by tonnage — larger than 6% of that group. Their median tonnage is 2,180 GT, and the largest tenth begin at 9,452 GT. The flag most often flown by this group is United States (90 ships). The yard that appears most often against it is Wärtsilä, with 36 hulls on record.
Estonia is the country of registry for 81 vessels in this directory, of which Jakob Prei is the 48th largest by tonnage. The most common class under that flag is vessels this registry holds no type classification for (50 ships), and the median vessel measures 916 GT. Browse every ship flagged Estonia.
Narrowing to both dimensions at once, this registry holds 4 research / surveys flying the Estonia flag, of which 2 are larger by tonnage.
Jakob Prei was built in 2012, making it 14 years old. It is one of 2,747 hulls in this registry delivered that year, a cohort whose median tonnage is 23,456 GT; within it this ship is the 2,610th largest. Across the whole of the 2010s the registry holds 20,111 vessels, median 23,456 GT. The median build year across the entire registry is 1995.
The registry attributes 59 vessels to Abeking & Rasmussen, with a median tonnage of 1,030 GT, delivered between 1947 and 2025. See the rest of that yard’s output.
At 23.0 m overall, Jakob Prei is 48.0 m shorter than the 71.0 m median for research / surveys on record.
IMO numbers are issued in broadly chronological blocks. Within 500 either side of 9580431 this registry holds 43 other vessels, whose median build year is 2011 and which range from 2009 to 2014. That places this hull’s registration in the same part of the series, consistent with its recorded build year of 2012.
Its IMO number, 9580431, carries its own check digit. The first six digits are weighted seven down to two and summed — 9×7 + 5×6 + 8×5 + 0×4 + 4×3 + 3×2 = 151 — and the last digit of that total, 1, must equal the seventh digit, 1. It does, so this number is well formed.
