Cargo ship · Flag JP

HEISEIMARU NO.18

HEISEIMARU NO.18 is a cargo ship (IMO 8731722, MMSI 431000193, flag JP). Its last AIS position was reported on 16 Oct 2026 at 23:11 UTC near Port of Shingu, bound for JP SGM OFF. AIS Trail recorded 1 port call in the last 60 days, most recently at Chiba Ko.

Last position

Position33.56° N, 136.02° ENear Port of Shingu
Reported23:11 UTC16 Oct 2026
Speed9.8 kn
Course43°

Status: Under way using engine · Destination as broadcast: JP SGM OFF · ETA as broadcast: 19 Oct 2026, 07:00 UTC

Position of MMSI 431000193, rounded to 0.01°; see the exact live position and the last 3 days on the live map.

Vessel details

NameHEISEIMARU NO.18
IMO number8731722
MMSI431000193
Call signJD2423
TypeCargo ship
FlagJP (from the MMSI country code)
Length × beam75 m × 12 m
Highest reported draught4.5 m (last 30 days)
Estimated deadweight≈ 2,380 t — estimated from AIS dimensions
Destination as broadcastJP SGM OFF
Seen in AIS10 Oct 2026 – 16 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 JPCHB10 Oct 2026, 18:19 UTC10 Oct 2026, 21:26 UTC3 h 6 min

HEISEIMARU NO.18 in the API

The full track, every port call and the live position of HEISEIMARU NO.18 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/8731722/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/imo/8731722/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.