What kind of ship is Sumise Maru No. 23?

Sumise Maru No. 23 is a cargo ship sailing under the flag of Japan, built in 2015. The vessel is 96 m long with a beam of 17 m and has a gross tonnage of 4,008.

What sanctions and inspection records does Seadar hold for Sumise Maru No. 23?

Seadar has no matched sanctions record displayed for Sumise Maru No. 23 from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Sumise Maru No. 23. Missing records do not establish whether the ship has been detained.

Sumise Maru No. 23

Cargo ship · Japan · built 2015 · AIS Class A

IMO9757515MMSI431006685Call signJD3866Last AIS position Sep 29, 2026, 20:12 UTC

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In short

Sumise Maru No. 23 (Cargo ship, Japan flag) was last seen on AIS on Sep 29, 2026, 20:12 UTC, under way at 10.4 kn, near Hannan (North Pacific Ocean). Seadar 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 AKO OFF; its reported draught is 4.6 m (voyage report via AISstream.io global terrestrial AIS, received Sep 28, 2026, 16:04 UTC). Its last detected port call was at Wakayama: arrived Sep 27, 2026, left Sep 29, 2026.

Vessel type: Cargo ship
Flag: Japan
Year built: 2015
Gross tonnage: 4,008
Size (length × beam): 96 m × 17 m
Registered owner: —

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Last reported position

received Sep 29, 2026, 20:12 UTC

Position: 34.4622° N, 135.1552° E
Area: North Pacific Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 10.4 kn
Course: 59°
Heading: 57°

34.4622° N, 135.1552° E

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Last 30 days: 1 port call (Wakayama).

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

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Identity & particulars

Name: Sumise Maru No. 23
IMO numberWhat is an IMO number?: 9757515
MMSIWhat is an MMSI?: 431006685
Call signWhat is a call sign?: JD3866
Flag: Japan
Vessel type: Cargo ship
AIS ship type: Cargo
Gross tonnageGross tonnage vs deadweight: 4,008
Deadweight (DWT): Source: Wikidata, record Q104098629. Added to Seadar on September 23, 2026. Licence: CC0 1.0.6,230 t
Length overall: 96 m
Beam: 17 m
Year built: 2015

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.

No owner, operator or manager is recorded for this vessel yet.

Timeline

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

Date	Event	Source
Sep 29, 2026, 20:12 UTC	Left WakayamaAIS-detected	Seadar port-call detector (AIS geofence)
Sep 27, 2026, 17:55 UTC	Arrived at WakayamaAIS-detected	Seadar 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 Seadar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Wakayama JPWAK	Sep 27, 2026, 17:55 UTC	Sep 29, 2026, 20:12 UTC	2 d 2 h

Detected by Seadar 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.

Behaviour at sea Seadar-derived

Patterns Seadar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Sep 28, 2026, 08:56 UTC	Draught change Reported draught went from 7 m to 4.6 m while in port at Wakayama. Seadar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1	High (75%)

When

What we observed

Confidence

Sep 28, 2026, 08:56 UTC

Draught change

Reported draught went from 7 m to 4.6 m while in port at Wakayama. Seadar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

High (75%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Seadar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

Frequently asked questions

Where is Sumise Maru No. 23 now?: Sumise Maru No. 23 (Cargo ship, Japan flag) was last seen on AIS on Sep 29, 2026, 20:12 UTC, under way at 10.4 kn, near Hannan (North Pacific Ocean). Seadar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was >JP AKO OFF (voyage report via AISstream.io global terrestrial AIS, received Sep 28, 2026, 16:04 UTC). This report does not confirm the ship’s current route.
What kind of ship is Sumise Maru No. 23?: Sumise Maru No. 23 is a cargo ship sailing under the flag of Japan, built in 2015. The vessel is 96 m long with a beam of 17 m and has a gross tonnage of 4,008.
What sanctions and inspection records does Seadar hold for Sumise Maru No. 23?: Seadar has no matched sanctions record displayed for Sumise Maru No. 23 from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for Sumise Maru No. 23. Missing records do not establish whether the ship has been detained.

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