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Japan flag

CHOKAIMARU NO.18 — Other · MMSI 431301551

JPNot defined
World map showing the last known position of CHOKAIMARU NO.18 at 37° 18.610' N, 137° 16.926' E
NSEW
Current PositionNo recent signal

CHOKAIMARU NO.18 has not broadcast an AIS position for 42 days. Its most recent report placed it in the Sea of Japan, at 37.3102° N, 137.2821° E, on 29 Jul 2026, 07:18 UTC. It was sailing from IIDA to AKITA.

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Updated 41 days ago using terrestrial data
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Not defined
Current Navigational Status
4.9 kn
Speed
222.0°
/ 223°
Course / Heading
---
Static Draught
---
Current Draught

Voyage Tracker

Japan flag
IIDAJPIDA
ATD
05:42 UTCJul 29, 2026
Japan flag
AKITAJPAXT
ETA
04:51 UTCJul 28, 2026
CHOKAIMARU NO.18

CHOKAIMARU NO.18

Identity

Other
Type
Japan flagJP
Flag
N/A
IMO Number
431301551
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 CHOKAIMARU NO.18 is part of.

Flag State
All JP-flagged vessels
Browse every ship currently registered under the JP flag, with live AIS positions.
Departure Port
Port of IIDA
Port traffic, arrivals and live vessel positions for IIDA (JPIDA).
Destination Port
Port of AKITA
Arrivals, berth specifications, and live vessel traffic for AKITA (JPAXT).

About CHOKAIMARU NO.18

Identity · Ownership · Class · Route

CHOKAIMARU NO.18 — Vessel

CHOKAIMARU NO.18 is a maritime vessel registered under the Japan flag.

CHOKAIMARU NO.18 route and voyage history

CHOKAIMARU NO.18 is currently on a voyage from IIDA to AKITA with an estimated arrival on 2026-07-28T04:51:00Z. The live route and current course of CHOKAIMARU NO.18 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 CHOKAIMARU NO.18 can be seen in the Similar Vessels section above.

  • MMSI: 431301551
  • Flag state: Japan

Frequently Asked Questions

Where is CHOKAIMARU NO.18 right now?+
CHOKAIMARU NO.18 has not broadcast an AIS position for 42 days. The most recent broadcast placed it in the Sea of Japan, on 29 Jul 2026, 07:18 UTC. It was sailing from IIDA to AKITA. 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 CHOKAIMARU NO.18?+
CHOKAIMARU NO.18 broadcasts MMSI 431301551. 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 CHOKAIMARU NO.18?+
CHOKAIMARU NO.18 is a maritime vessel registered under the JP flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder and full JP flag list at /flag/jp.
How can I see the live position of CHOKAIMARU NO.18?+
MarineRadar shows the latest AIS broadcast from CHOKAIMARU NO.18 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 CHOKAIMARU NO.18'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 CHOKAIMARU NO.18?+
The vessel's design class is inferred from its dimensions, gross tonnage and dead weight, all of which are listed in the Identity and Specifications panels on the vessel page.

CHOKAIMARU NO.18 — Key Facts

MMSI
431301551
Vessel type
Unknown
Flag state
JP
Navigation status
Not defined
Current speed
4.9 knots
Course over ground
222.0°
Heading
223°
Last known position
37.3102°, 137.2821°
Destination
AKITA
ETA
2026-07-28T04:51:00Z
Departure port
IIDA
Actual time of departure
2026-07-29T05:42:00Z
AIS last updated
2026-07-29T07:18:00Z