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Japan flag

YOKOSUKA — Other · IMO 8711019

JPMoored
World map showing the last known position of YOKOSUKA at 35° 19.082' N, 139° 39.146' E
NSEW
Current PositionLive

YOKOSUKA is currently moored in the Sea of Japan, at 35.3180° N, 139.6524° E. It is sailing from YOKOSUKA to YOKOSUKA with an ETA of 1 Sep 2026, 23:07 UTC. AIS position received 8 Sep 2026, 21:19 UTC.

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Updated 6 minutes ago using terrestrial data
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Moored
Current Navigational Status
0.0 kn
Speed
228.0°
/ 146°
Course / Heading
4.5 m
Static Draught
4.5 m
Current Draught

Voyage Tracker

ATD
23:14 UTCAug 26, 2026
ETA
23:07 UTCSep 1, 2026
YOKOSUKA

YOKOSUKA

Identity

Other
Type
Japan flagJP
Flag
8711019
IMO Number
431460000
MMSI
JCOY
Call Sign

Specifications

105 m × 16 m
Length × Breadth
1990-01-01
Year Built
1,368 t
Deadweight
4,439 t
Gross Tonnage
N/A
Engine Power
KAWASAKI HEAVY INDUSTRIES - KOBE, JAPAN
Builder
NIPPON KAIJI KYOKAI (NKK)
Class Society
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Dive into the fleet, port, and flag state that YOKOSUKA 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 YOKOSUKA
Port traffic, arrivals and live vessel positions for YOKOSUKA (JPYOS).

About YOKOSUKA

Identity · Ownership · Class · Route

YOKOSUKA — Vessel

Built in 1990, with a gross tonnage of 4,439 GT, and a dead weight of 1,368 tonnes, YOKOSUKA is a maritime vessel registered under the Japan flag. The vessel is owned by JAPAN FOR MARINE EARTH - YOKOSUKA, JAPAN, built by KAWASAKI HEAVY INDUSTRIES - KOBE, JAPAN.

YOKOSUKA route and voyage history

YOKOSUKA is currently on a voyage from YOKOSUKA to YOKOSUKA with an estimated arrival on 2026-09-01T23:07:00Z. The live route and current course of YOKOSUKA 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

YOKOSUKA is classed by NIPPON KAIJI KYOKAI (NKK), which inspects the vessel against its safety and structural rules. Vessels in the same class as YOKOSUKA can be seen in the Similar Vessels section above.

  • MMSI: 431460000
  • IMO: 8711019
  • Call sign: JCOY
  • Flag state: Japan

Frequently Asked Questions

Where is YOKOSUKA right now?+
YOKOSUKA is currently moored in the Sea of Japan, within the Japan / Korea shipping lane. It is sailing from YOKOSUKA to YOKOSUKA with an ETA of 1 Sep 2026, 23:07 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 YOKOSUKA?+
YOKOSUKA broadcasts MMSI 431460000 and is registered as IMO 8711019, with call sign JCOY . 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 YOKOSUKA?+
YOKOSUKA 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 YOKOSUKA?+
MarineRadar shows the latest AIS broadcast from YOKOSUKA 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 YOKOSUKA'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 YOKOSUKA?+
YOKOSUKA is classed by NIPPON KAIJI KYOKAI (NKK), the classification society responsible for inspecting the vessel against safety, structural and operational rules. 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. YOKOSUKA has a gross tonnage of 4,439 GT.

YOKOSUKA — Key Facts

MMSI
431460000
IMO number
8711019
Call sign
JCOY
Vessel type
Unknown
Flag state
JP
Navigation status
Moored
Current speed
0.0 knots
Course over ground
228.0°
Heading
146°
Last known position
35.3180°, 139.6524°
Destination
YOKOSUKA
ETA
2026-09-01T23:07:00Z
Departure port
YOKOSUKA
Actual time of departure
2026-08-26T23:14:00Z
Current draught
4.5 m
Maximum static draught
4.5 m
Year built
1990-01-01
Gross tonnage
4439
Dead weight
1368 t
AIS last updated
2026-09-08T21:19:00Z