LUTHER (Tug, United States flag) was last seen on AIS on Oct 3, 2026, 19:26 UTC, moored, in the port of Seattle. The crew-entered destination was SEA WA (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 18:44 UTC). This report does not confirm the ship’s current route.

What kind of ship is LUTHER?

LUTHER is a tug sailing under the flag of United States. The vessel is 35 m long with a beam of 10 m.

What sanctions and inspection records does Voydar hold for LUTHER?

Voydar has no matched sanctions record displayed for LUTHER 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 LUTHER. Missing records do not establish whether the ship has been detained.

LUTHER

Tug · United States · AIS Class A

IMO7427477MMSI368045710Call signWDK3484Last AIS position Oct 3, 2026, 19:26 UTC

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In short

LUTHER (Tug, United States flag) was last seen on AIS on Oct 3, 2026, 19:26 UTC, moored, in the port of Seattle. Its crew-entered AIS destination is SEA WA; its reported draught is 4.5 m (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 18:44 UTC). It arrived there on Oct 1, 2026, 14:56 UTC.

Vessel type: Tug
Flag: United States
Year built: —
Gross tonnage: —
Size (length × beam): 35 m × 10 m
Registered owner: —

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Last reported position

received Oct 3, 2026, 19:26 UTC

Position: 47.5555° N, 122.3456° W
Area: North Pacific Ocean
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: —
Heading: 255°

47.5555° N, 122.3456° W

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Last 30 days: 3 port calls (Seattle and Vancouver).

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

A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)

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Identity & particulars

Name: LUTHER
IMO numberWhat is an IMO number?: 7427477
MMSIWhat is an MMSI?: 368045710
Call signWhat is a call sign?: WDK3484
Flag: United States
Vessel type: Tug
AIS ship type: Towing
Gross tonnageGross tonnage vs deadweight: —
Length overall: 35 m
Beam: 10 m
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
Oct 1, 2026, 14:56 UTC	Arrived at SeattleAIS-detected	Voydar port-call detector (AIS geofence)
Sep 27, 2026, 22:43 UTC	Left SeattleAIS-detected	Voydar port-call detector (AIS geofence)
Sep 27, 2026, 20:50 UTC	Arrived at SeattleAIS-detected	Voydar port-call detector (AIS geofence)
Sep 26, 2026, 02:12 UTC	Left VancouverAIS-detected	Voydar port-call detector (AIS geofence)
Sep 25, 2026, 14:56 UTC	Arrived at VancouverAIS-detected	Voydar port-call detector (AIS geofence)
Jul 31, 2009	Reported arrival at ValdezAuthority-reported	USACE foreign traffic vessel entrances & clearances
Jul 22, 2009	Reported departure from SeattleAuthority-reported	USACE foreign traffic vessel entrances & clearances
Feb 14, 2008	Reported arrival at AstoriaAuthority-reported	USACE foreign traffic vessel entrances & clearances

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
Seattle USSEA	Oct 1, 2026, 14:56 UTC	in port	—
Seattle USSEA	Sep 27, 2026, 20:50 UTC	Sep 27, 2026, 22:43 UTC	1 h 53 min
Vancouver USVAN	Sep 25, 2026, 14:56 UTC	Sep 26, 2026, 02:12 UTC	11 h 16 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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Valdez USVDZ	Arrival	Jul 31, 2009(date only)	—	USACE foreign traffic vessel entrances & clearances
Seattle USSEA	Departure	Jul 22, 2009(date only)	—	USACE foreign traffic vessel entrances & clearances
Astoria USAST	Arrival	Feb 14, 2008(date only)	—	USACE foreign traffic vessel entrances & clearances
Portland USPDX	Departure	Feb 8, 2008(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Arrival	Sep 24, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Departure	Sep 14, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Arrival	Aug 10, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Departure	Aug 3, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Arrival	May 5, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
Portland USPDX	Departure	Apr 27, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
Port Angeles USCLM	Arrival	Mar 2, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PORTS OTHER THAN PORTLAND, ASTORIA, ST. HELENS, LONGVIEW, VANCOUVER AN	Departure	Feb 22, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: March 15, 2002.

Source: US Army Corps of Engineers, Waterborne Commerce Statistics Center (US CBP entrance/clearance records). Licence: US Government work — public domain.

Behaviour at sea Voydar-derived

Patterns Voydar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Sep 28, 2026, 11:38 UTC	Draught change Reported draught went from 19.4 m to 4.5 m after leaving Seattle. Voydar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1	Medium (65%)

When

What we observed

Confidence

Sep 28, 2026, 11:38 UTC

Draught change

Reported draught went from 19.4 m to 4.5 m after leaving Seattle. Voydar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

Medium (65%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Voydar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

Frequently asked questions

Where is LUTHER now?: LUTHER (Tug, United States flag) was last seen on AIS on Oct 3, 2026, 19:26 UTC, moored, in the port of Seattle. The crew-entered destination was SEA WA (voyage report via AISstream.io global terrestrial AIS, received Oct 3, 2026, 18:44 UTC). This report does not confirm the ship’s current route.
What kind of ship is LUTHER?: LUTHER is a tug sailing under the flag of United States. The vessel is 35 m long with a beam of 10 m.
What sanctions and inspection records does Voydar hold for LUTHER?: Voydar has no matched sanctions record displayed for LUTHER 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 LUTHER. Missing records do not establish whether the ship has been detained.

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