Tug · last seen 35°N 140°E · Jun 2026 · MMSI 431005532 · Call sign JD3691
Not yet on Master's MateKIYOSUMI is a working tug, 34 metres from stem to stern. She carries a beam measuring 12 metres and a 3.5-metre draft. She's listed under MMSI 431005532, call sign JD3691. KIYOSUMI can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
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Joining the Safety Initiative Network doesn't just put KIYOSUMI on the map. It hands you the full bridge:
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