Japan flag

KOUREI MARUTanker · IMO 9873955

JPUnder way using engine
World map showing the last known position of KOUREI MARU at 33° 58.541' N, 133° 16.055' E
NSEW
Current PositionLive

KOUREI MARU is currently under way in the Sea of Japan, at 33.9757° N, 133.2676° E, making 0.1 knots on a course of 275°. It is sailing from TOMIOKA to NIIHAMA with an ETA of 8 Sep 2026, 14:07 UTC. AIS position received 8 Sep 2026, 21:50 UTC.

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Updated 18 minutes ago using terrestrial data
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Under way using engine
Current Navigational Status
0.1 kn
Speed
275.0°
/ 344°
Course / Heading
3.4 m
Static Draught
3.2 m
Current Draught

Voyage Tracker

Japan flag
TOMIOKAJPTOM
ATD
06:04 UTCSep 8, 2026
Japan flag
NIIHAMAJPIHA
ETA
14:07 UTCSep 8, 2026
KOUREI MARU

KOUREI MARU

Identity

Tanker
Type
Japan flagJP
Flag
9873955
IMO Number
431014167
MMSI
JD4656
Call Sign

Specifications

65 m × 10 m
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
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Dive into the fleet, port, and flag state that KOUREI MARU is part of.

Flag State
All JP-flagged vessels
Browse every ship currently registered under the JP flag, with live AIS positions.
Vessel Type
Browse all Tankers
See the global fleet of tankers tracked on MarineRadar with live AIS data.
Departure Port
Port of TOMIOKA
Port traffic, arrivals and live vessel positions for TOMIOKA (JPTOM).
Destination Port
Port of NIIHAMA
Arrivals, berth specifications, and live vessel traffic for NIIHAMA (JPIHA).

About KOUREI MARU

Identity · Ownership · Class · Route

KOUREI MARU — Tanker

KOUREI MARU is a tanker registered under the Japan flag.

KOUREI MARU route and voyage history

KOUREI MARU is currently on a voyage from TOMIOKA to NIIHAMA with an estimated arrival on 2026-09-08T14:07:00Z. The live route and current course of KOUREI MARU are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

Vessels in the same class as KOUREI MARU can be seen in the Similar Vessels section above or in the full tanker fleet at /vessel-type/tanker.

  • MMSI: 431014167
  • IMO: 9873955
  • Call sign: JD4656
  • Vessel type: Tanker
  • Flag state: Japan

Frequently Asked Questions

Where is KOUREI MARU right now?+
KOUREI MARU is currently under way in the Sea of Japan, within the Japan / Korea shipping lane. It is sailing from TOMIOKA to NIIHAMA with an ETA of 8 Sep 2026, 14:07 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.
What are the identifiers for KOUREI MARU?+
KOUREI MARU broadcasts MMSI 431014167 and is registered as IMO 9873955, with call sign JD4656. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is KOUREI MARU?+
KOUREI MARU is classified as a tanker vessel registered under the JP flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full tanker fleet at /vessel-type/tanker and full JP flag list at /flag/jp.
How can I see the live position of KOUREI MARU?+
MarineRadar shows the latest AIS broadcast from KOUREI MARU above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is KOUREI MARU's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is KOUREI MARU?+
As a tanker, KOUREI MARU sits in the same design class as the other tankers listed in the Similar Vessels section of the vessel page, or in the full tanker directory at /vessel-type/tanker.

KOUREI MARU — Key Facts

MMSI
431014167
IMO number
9873955
Call sign
JD4656
Vessel type
Tanker
Flag state
JP
Navigation status
Under way using engine
Current speed
0.1 knots
Course over ground
275.0°
Heading
344°
Last known position
33.9757°, 133.2676°
Destination
NIIHAMA
ETA
2026-09-08T14:07:00Z
Departure port
TOMIOKA
Actual time of departure
2026-09-08T06:04:00Z
Current draught
3.2 m
Maximum static draught
3.4 m
Dead weight
0 t
AIS last updated
2026-09-08T21:50:00Z