Tanker · Flag JP

KISEIMARU

KISEIMARU is a tanker (IMO 9409869, MMSI 431101164, flag JP). Its last AIS position was reported on 15 Oct 2026 at 06:09 UTC near Port of Yokosuka Ko, bound for >JP YKK OFF. AIS Trail recorded 3 port calls in the last 60 days, most recently at Chiba Ko.

Last position

Position35.35° N, 139.71° ENear Port of Yokosuka Ko
Reported06:09 UTC15 Oct 2026
Speed13.3 kn
Course173°

Status: Under way using engine · Destination as broadcast: >JP YKK OFF · ETA as broadcast: 15 Oct 2026, 21:00 UTC

Position of MMSI 431101164, rounded to 0.01°; see the exact live position and the last 3 days on the live map.

Vessel details

NameKISEIMARU
IMO number9409869
MMSI431101164
Call signJD2297
TypeTanker
FlagJP (from the MMSI country code)
Length × beam105 m × 16 m
Highest reported draught6.8 m (last 30 days)
Estimated deadweight≈ 7,000 t — estimated from AIS dimensions
Destination as broadcast>JP YKK OFF
Seen in AIS10 Oct 2026 – 15 Oct 2026 (last 30 days)

Port calls

Port calls detected by AIS Trail in the last 60 days, newest first.

PortArrived (UTC)Departed (UTC)Time in port
Chiba Ko JPCHB14 Oct 2026, 07:56 UTC15 Oct 2026, 04:26 UTC20 h 30 min
Kawasaki Ko JPKWS13 Oct 2026, 00:30 UTC13 Oct 2026, 04:51 UTC4 h 20 min
Chiba Ko JPCHB10 Oct 2026, 18:20 UTC11 Oct 2026, 04:44 UTC10 h 24 min

KISEIMARU in the API

The full track, every port call and the live position of KISEIMARU are available through the AIS Trail API. A free key covers the last 7 days of history; paid plans cover the last 12 months, and Pro and Business add live positions.

curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/imo/9409869/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/imo/9409869/port-calls?from=2026-10-10"

Sources

  • Live AIS via aisstream.io, provided without warranty. No published terms
  • Port reference: UN/LOCODE, United Nations Economic Commission for Europe (UNECE), https://unlocode.unece.org, license CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: port entries selected, deduplicated and merged with the World Port Index.
  • Port reference: World Port Index (Pub. 150), National Geospatial-Intelligence Agency (NGA).

Flags come from the MMSI country code, deadweight and size class are estimates from AIS dimensions, port calls are detected by AIS Trail from position reports. All sources and licences: Data sources.

Not for navigation. AIS data can be missing, delayed or wrong; do not use it for navigation, collision avoidance, search and rescue or any other safety-of-life purpose.