Tug · Flag JP

ASAMA

ASAMA is a tug (MMSI 431007539, flag JP). Its last AIS position was reported on 16 Oct 2026 at 21:24 UTC near Port of Chiba Ko, bound for JP CHB XX.

Last position

Position35.55° N, 139.95° ENear Port of Chiba Ko
Reported21:24 UTC16 Oct 2026
Speed6.7 kn
Course89°

Status: Under way using engine · Destination as broadcast: JP CHB XX · ETA as broadcast: 5 Sep 2026, 12:34 UTC

Position of MMSI 431007539, rounded to 0.01°; see the exact live position and the last 3 days on the live map.

Vessel details

NameASAMA
IMO number–
MMSI431007539
Call signJD3974
TypeTug
FlagJP (from the MMSI country code)
Length × beam34 m × 9 m
Highest reported draught3.5 m (last 30 days)
Estimated deadweight–
Destination as broadcastJP CHB XX
Seen in AIS10 Oct 2026 – 16 Oct 2026 (last 30 days)

Port calls

No port calls detected in the last 60 days.

ASAMA in the API

The full track, every port call and the live position of ASAMA 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/431007539/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/431007539/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.