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Japan flag

TOMOMARU — Fishing · MMSI 431006107

JPClass B
World map showing the last known position of TOMOMARU at 36° 45.355' N, 140° 44.781' E
NSEW
Current PositionNo recent signal

TOMOMARU has not broadcast an AIS position for 31 days. Its most recent report placed it in the Sea of Japan, at 36.7559° N, 140.7464° E, on 8 Aug 2026, 21:30 UTC. It was sailing from OTSU to CLASS B.

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Updated 30 days ago using terrestrial data
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Class B
Current Navigational Status
9.0 kn
Speed
205.0°
/ 511°
Course / Heading
---
Static Draught
---
Current Draught

Voyage Tracker

Japan flag
OTSUJPOSJ
ATD
03:20 UTCMay 27, 2026
CLASS B
ETA
20:18 UTCJun 30, 2026
TOMOMARU

TOMOMARU

Identity

Fishing
Type
Japan flagJP
Flag
N/A
IMO Number
431006107
MMSI
N/A
Call Sign

Specifications

N/A
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 TOMOMARU 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 Fishings
See the global fleet of fishings tracked on MarineRadar with live AIS data.
Departure Port
Port of OTSU
Port traffic, arrivals and live vessel positions for OTSU (JPOSJ).

About TOMOMARU

Identity · Ownership · Class · Route

TOMOMARU — Fishing

TOMOMARU is a fishing registered under the Japan flag.

TOMOMARU route and voyage history

TOMOMARU most recently departed OTSU. The live route and current course of TOMOMARU 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 TOMOMARU can be seen in the Similar Vessels section above or in the full fishing fleet at /vessel-type/fishing.

Frequently Asked Questions

Where is TOMOMARU right now?+
TOMOMARU has not broadcast an AIS position for 31 days. The most recent broadcast placed it in the Sea of Japan, on 8 Aug 2026, 21:30 UTC. It was sailing from OTSU to CLASS B. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.
What are the identifiers for TOMOMARU?+
TOMOMARU broadcasts MMSI 431006107. 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 TOMOMARU?+
TOMOMARU is classified as a fishing vessel registered under the JP flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full fishing fleet at /vessel-type/fishing and full JP flag list at /flag/jp.
How can I see the live position of TOMOMARU?+
MarineRadar shows the latest AIS broadcast from TOMOMARU 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 TOMOMARU'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 TOMOMARU?+
As a fishing, TOMOMARU sits in the same design class as the other fishings listed in the Similar Vessels section of the vessel page, or in the full fishing directory at /vessel-type/fishing.

TOMOMARU — Key Facts

MMSI
431006107
Vessel type
Fishing
Flag state
JP
Navigation status
Class B
Current speed
9.0 knots
Course over ground
205.0°
Heading
511°
Last known position
36.7559°, 140.7464°
Destination
CLASS B
ETA
2026-06-30T20:18:00Z
Departure port
OTSU
Actual time of departure
2026-05-27T03:20:00Z
AIS last updated
2026-08-08T21:30:00Z