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KOU ZAN MARU

Cargo ship · Japan · AIS Class A

IMO9510826MMSI431001729Call signJD3086Last AIS position Oct 4, 2026, 06:24 UTC

In short

KOU ZAN MARU (Cargo ship, Japan flag) was last seen on AIS on , under way at 11.3 kn, in the North Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is >JP SGM (Sendaishiogama); its reported draught is 6.4 m (voyage report via AISstream.io global terrestrial AIS, received Oct 2, 2026, 10:46 UTC).

Current voyage: from Tokyo (departed Oct 2, 2026, 08:37 UTC) to >JP SGM (Sendaishiogama)

Vessel type
Cargo ship
Flag
Japan
Year built
—
Gross tonnage
14,902
Size (length × beam)
161 m
Registered owner
—

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Last reported position

received
Position
35.0325° N, 140.2841° E
Area
North Pacific Ocean
StatusWhat do AIS statuses mean?
Under way using engine
Speed
11.3 kn
Course
238°
Heading
238°
35.0325° N, 140.2841° E
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Last 30 days: 2 port calls (Tokyo).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name
KOU ZAN MARU
IMO numberWhat is an IMO number?
9510826
MMSIWhat is an MMSI?
431001729
Call signWhat is a call sign?
JD3086
Flag
Japan
Vessel type
Cargo ship
AIS ship type
Cargo
Gross tonnageGross tonnage vs deadweight
14,902
Length overall
160.9 m
Beam
—
Year built
—

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Operator
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

DateEventSource
Left TokyoAIS-detectedVoydar port-call detector (AIS geofence)
Arrived at TokyoAIS-detectedVoydar port-call detector (AIS geofence)
Left TokyoAIS-detectedVoydar port-call detector (AIS geofence)
Arrived at TokyoAIS-detectedVoydar port-call detector (AIS geofence)

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

PortArrivedDepartedTime in port
Tokyo JPTYOOct 1, 2026, 06:31 UTCOct 2, 2026, 08:37 UTC26 h 6 min
Tokyo JPTYOSep 25, 2026, 00:02 UTCSep 25, 2026, 13:08 UTC13 h 6 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Frequently asked questions

Where is KOU ZAN MARU now?
KOU ZAN MARU (Cargo ship, Japan flag) was last seen on AIS on Oct 4, 2026, 06:24 UTC, under way at 11.3 kn, in the North Pacific Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was >JP SGM (voyage report via AISstream.io global terrestrial AIS, received Oct 2, 2026, 10:46 UTC). This report does not confirm the ship’s current route.
What kind of ship is KOU ZAN MARU?
KOU ZAN MARU is a cargo ship sailing under the flag of Japan. The vessel is 160.9 m long and has a gross tonnage of 14,902.
What sanctions and inspection records does Voydar hold for KOU ZAN MARU?
Voydar has no matched sanctions record displayed for KOU ZAN MARU from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for KOU ZAN MARU. Missing records do not establish whether the ship has been detained.

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