Tanker · Flag JP

KOSHO MARU NO.3

KOSHO MARU NO.3 is a tanker (IMO 9873723, MMSI 431014035, flag JP). Its last AIS position was reported on 13 Oct 2026 at 09:20 UTC near Port of Namikata, bound for >JP HIJ OFF.

Last position

Position34.14° N, 132.81° ENear Port of Namikata
Reported09:20 UTC13 Oct 2026
Speed12.9 kn
Course255°

Status: Under way using engine · Destination as broadcast: >JP HIJ OFF · ETA as broadcast: 13 Oct 2026, 22:30 UTC

Position of MMSI 431014035, rounded to 0.01°; see the exact live position and the last 3 days on the live map.

Vessel details

NameKOSHO MARU NO.3
IMO number9873723
MMSI431014035
Call signJD4680
TypeTanker
FlagJP (from the MMSI country code)
Length × beam68 m × 11 m
Highest reported draught4.4 m (last 30 days)
Estimated deadweight≈ 1,940 t — estimated from AIS dimensions
Destination as broadcast>JP HIJ OFF
Seen in AIS11 Oct 2026 – 13 Oct 2026 (last 30 days)

Port calls

No port calls detected in the last 60 days.

KOSHO MARU NO.3 in the API

The full track, every port call and the live position of KOSHO MARU NO.3 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/9873723/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/imo/9873723/port-calls?from=2026-10-10"

Sources

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.