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RYOEI MARU NO.11

Tanker · Japan · AIS Class A

IMO9806691MMSI431009835Call signJD4215Last AIS position Oct 5, 2026, 00:07 UTC

In short

RYOEI MARU NO.11 (Tanker, Japan flag) was last seen on AIS on , not moving, in the port of Narashino. 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> FNB XX; its reported draught is 3.8 m (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 23:27 UTC). It arrived there on Oct 4, 2026, 23:36 UTC.

Vessel type
Tanker
Flag
Japan
Year built
—
Gross tonnage
—
Size (length × beam)
—
Registered owner
—

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Last reported position

received
Position
35.6769° N, 139.9844° E
Area
North Pacific Ocean
StatusWhat do AIS statuses mean?
Under way using engine
Speed
0 kn
Course
359°
Heading
290°
35.6769° N, 139.9844° E
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Last 30 days: 2 port calls (Narashino and Yokohama).

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
RYOEI MARU NO.11
IMO numberWhat is an IMO number?
9806691
MMSIWhat is an MMSI?
431009835
Call signWhat is a call sign?
JD4215
Flag
Japan
Vessel type
Tanker
Length overall
—
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.

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

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
Arrived at NarashinoAIS-detectedVoydar port-call detector (AIS geofence)
Left YokohamaAIS-detectedVoydar port-call detector (AIS geofence)
Arrived at YokohamaAIS-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
Narashino JPNAIOct 4, 2026, 23:36 UTCin port—
Yokohama JPYOKOct 3, 2026, 06:56 UTCOct 3, 2026, 11:08 UTC4 h 12 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.

Behaviour at sea Voydar-derived

Patterns Voydar 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.

WhenWhat we observedConfidence
Oct 3, 2026, 23:11 UTC
Draught change

Reported draught went from 4.8 m to 3.8 m after leaving Yokohama. Voydar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

Medium (55%)

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

Derived from AIS positions of feeds whose terms allow display on Voydar. 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 RYOEI MARU NO.11 now?
RYOEI MARU NO.11 (Tanker, Japan flag) was last seen on AIS on Oct 5, 2026, 00:07 UTC, not moving, in the port of Narashino. 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> FNB XX (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 23:27 UTC). This report does not confirm the ship’s current route.
What kind of ship is RYOEI MARU NO.11?
RYOEI MARU NO.11 is a tanker sailing under the flag of Japan.
What sanctions and inspection records does Voydar hold for RYOEI MARU NO.11?
Voydar has no matched sanctions record displayed for RYOEI MARU NO.11 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 RYOEI MARU NO.11. Missing records do not establish whether the ship has been detained.

Use this data

This page is also available as JSON, free, with the source and licence of every section. Sections whose sources do not permit redistribution are listed as withheld.

GET /api/v1/vessels/9806691
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