BISON (Tug, Sweden flag) was last seen on AIS on Oct 5, 2026, 02:51 UTC, moored, in the Baltic Sea. The crew-entered destination was STENUNGSUND (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 02:24 UTC). This report does not confirm the ship’s current route.

What kind of ship is BISON?

BISON is a tug sailing under the flag of Sweden.

What sanctions and inspection records does Voydar hold for BISON?

Voydar has no matched sanctions record displayed for BISON from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for BISON. Missing records do not establish whether the ship has been detained.

BISON

Tug · Sweden · AIS Class A

IMO9706085MMSI266428000Call signSFPMLast AIS position Oct 5, 2026, 02:51 UTC

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In short

BISON (Tug, Sweden flag) was last seen on AIS on Oct 5, 2026, 02:51 UTC, moored, in the Baltic Sea. Its crew-entered AIS destination is STENUNGSUND; its reported draught is 6 m (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 02:24 UTC).

Current voyage: from Ronnang (departed Sep 17, 2026, 18:54 UTC) to STENUNGSUND

Vessel type: Tug
Flag: Sweden
Year built: —
Gross tonnage: —
Size (length × beam): —
Registered owner: —

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Last reported position

received Oct 5, 2026, 02:51 UTC

Position: 58.0737° N, 11.8145° E
Area: Baltic Sea
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: 196°
Heading: 4°

58.0737° N, 11.8145° E

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Last 30 days: 3 port calls (Ronnang and Wallhamn).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: BISON
IMO numberWhat is an IMO number?: 9706085
MMSIWhat is an MMSI?: 266428000
Call signWhat is a call sign?: SFPM
Flag: Sweden
Vessel type: Tug
Gross tonnageGross tonnage vs deadweight: —
Length overall: —
Beam: —
Year built: —

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

No owner, operator or manager is recorded for this vessel yet.

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Sep 17, 2026, 18:54 UTC	Left RonnangAIS-detected	Voydar port-call detector (AIS geofence)
Sep 16, 2026, 15:32 UTC	Arrived at RonnangAIS-detected	Voydar port-call detector (AIS geofence)
Sep 9, 2026, 23:49 UTC	Left RonnangAIS-detected	Voydar port-call detector (AIS geofence)
Sep 5, 2026, 11:52 UTC	Arrived at RonnangAIS-detected	Voydar port-call detector (AIS geofence)
Sep 5, 2026, 09:13 UTC	Left WallhamnAIS-detected	Voydar port-call detector (AIS geofence)
Sep 5, 2026, 04:52 UTC	Arrived at WallhamnAIS-detected	Voydar port-call detector (AIS geofence)

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Ronnang SERNG	Sep 16, 2026, 15:32 UTC	Sep 17, 2026, 18:54 UTC	27 h 23 min
Ronnang SERNG	Sep 5, 2026, 11:52 UTC	Sep 9, 2026, 23:49 UTC	4 d 11 h
Wallhamn SEWAL	Sep 5, 2026, 04:52 UTC	Sep 5, 2026, 09:13 UTC	4 h 21 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Frequently asked questions

Where is BISON now?: BISON (Tug, Sweden flag) was last seen on AIS on Oct 5, 2026, 02:51 UTC, moored, in the Baltic Sea. The crew-entered destination was STENUNGSUND (voyage report via AISstream.io global terrestrial AIS, received Oct 5, 2026, 02:24 UTC). This report does not confirm the ship’s current route.
What kind of ship is BISON?: BISON is a tug sailing under the flag of Sweden.
What sanctions and inspection records does Voydar hold for BISON?: Voydar has no matched sanctions record displayed for BISON from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for BISON. Missing records do not establish whether the ship has been detained.

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