Towing vessel · Flag JP
KOYO MARU
KOYO MARU is a towing vessel (IMO 9162148, MMSI 431330000, flag JP). Its last AIS position was reported on 12 Oct 2026 at 17:03 UTC, bound for >JP OFF NMX.
Last position
Status: Restricted manoeuvrability · Destination as broadcast: >JP OFF NMX · ETA as broadcast: 16 Oct 2026, 20:30 UTC
Position of MMSI 431330000, rounded to 0.01°; see the exact live position and the last 3 days on the live map.
Vessel details
| Name | KOYO MARU |
|---|---|
| IMO number | 9162148 |
| MMSI | 431330000 |
| Call sign | JLSC |
| Type | Towing vessel (long or wide tow) |
| Flag | JP (from the MMSI country code) |
| Length × beam | 80 m × 14 m |
| Highest reported draught | 6.4 m (last 30 days) |
| Estimated deadweight | – |
| Destination as broadcast | >JP OFF NMX |
| Seen in AIS | 10 Oct 2026 – 12 Oct 2026 (last 30 days) |
Port calls
No port calls detected in the last 60 days.
KOYO MARU in the API
The full track, every port call and the live position of KOYO MARU 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/9162148/track?from=2026-10-10&resolution=1h"
curl -H "Authorization: Bearer $AIS_TRAIL_KEY" \
"https://api.aistrail.com/v1/vessels/imo/9162148/port-calls?from=2026-10-10"Sources
- Live AIS via aisstream.io, provided without warranty. No published terms
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.
