Tanker · Flag JP

MATSUYAMA MARU NO.12

MATSUYAMA MARU NO.12 is a tanker (IMO 9711303, MMSI 431005507, flag JP). Its last AIS position was reported on 16 Oct 2026 at 18:58 UTC near Port of Chiba Ko, bound for >JP ANE OFF. AIS Trail recorded 1 port call in the last 60 days, most recently at Katsunan Ko.

Last position

Position35.54° N, 140.01° ENear Port of Chiba Ko
Reported18:58 UTC16 Oct 2026
Speed0.0 kn
Course190°

Status: At anchor · Destination as broadcast: >JP ANE OFF · ETA as broadcast: 16 Oct 2026, 13:00 UTC

Position of MMSI 431005507, rounded to 0.01°; see the exact live position and the last 3 days on the live map.

Vessel details

NameMATSUYAMA MARU NO.12
IMO number9711303
MMSI431005507
Call signJD3713
TypeTanker
FlagJP (from the MMSI country code)
Length × beam104 m × 16 m
Highest reported draught5.4 m (last 30 days)
Estimated deadweight≈ 5,500 t — estimated from AIS dimensions
Destination as broadcast>JP ANE 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
Katsunan Ko JP13 Oct 2026, 23:53 UTCNo departure yet–

MATSUYAMA MARU NO.12 in the API

The full track, every port call and the live position of MATSUYAMA MARU NO.12 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/9711303/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
  "https://api.aistrail.com/v1/vessels/imo/9711303/port-calls?from=2026-10-10"

Sources

  • Live AIS via aisstream.io, provided without warranty. No published terms
  • 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.