What kind of ship is Defender?

Defender is a tug sailing under the flag of United States, built in 1976. The vessel is 40 m long with a beam of 10 m and has a gross tonnage of 538.

What sanctions and inspection records does Voydar hold for Defender?

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

Defender

Tug · United States · built 1976 · AIS Class A

IMO7507394MMSI366766840Call signWBN3016Last AIS position Jul 1, 2026, 18:06 UTC

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In short

Defender (Tug, United States flag) was last seen on AIS on Jul 1, 2026, 18:06 UTC, moored, near Jacksonville (Gulf of Mexico). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Managing owner (USCG): CROWLEY PUERTO RICO SERVICES INC (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)).

Vessel type: Tug
Flag: United States
Year built: 1976
Gross tonnage: 538
Size (length × beam): 40 m × 10 m
Managing owner (USCG): CROWLEY PUERTO RICO SERVICES INC

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Last reported position

received Jul 1, 2026, 18:06 UTC

Position: 30.3375° N, 81.6266° W
Area: Gulf of Mexico
StatusWhat do AIS statuses mean?: Moored
Speed: 0 kn
Course: —
Heading: 280°

30.3375° N, 81.6266° W

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Voydar detected no port call in the last 30 days.

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: Defender
IMO numberWhat is an IMO number?: 7507394
MMSIWhat is an MMSI?: 366766840
Call signWhat is a call sign?: WBN3016
Flag: United States
Vessel type: Tug
Gross tonnageGross tonnage vs deadweight: 538
Length overall: 40 m
Beam: 10 m
Year built: 1976

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.

Managing owner (USCG): CROWLEY PUERTO RICO SERVICES INC(not linked to a company record)
Source: US Coast Guard — Merchant Vessels of the United States (documented vessels) · reported · confidence 0.9 · retrieved Oct 6, 2026Coast Guard documentation record (2026-09 file) matched to this ship by IMO number and call sign. The managing owner is the company the Coast Guard has on record for the ship's certificate of documentation.
Ship radio licensee (FCC): Crowley Puerto Rico Services Inc.(not linked to a company record)
Source: FCC Universal Licensing System — ship station licences · since 2017 · reported · confidence 0.9 · retrieved Oct 6, 2026Licence matched to this ship by MMSI and call sign. The licensee holds the radio licence; it is not necessarily the owner.

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
Aug 5, 2016	Reported arrival at JACKSONVILLE HARBOR, FLAuthority-reported	USACE foreign traffic vessel entrances & clearances
Jul 28, 2016	Reported departure from JACKSONVILLE HARBOR, FLAuthority-reported	USACE foreign traffic vessel entrances & clearances
Apr 30, 2015	Reported departure from ST. THOMAS HARBOR, VIAuthority-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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
JACKSONVILLE HARBOR, FL	Arrival	Aug 5, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
JACKSONVILLE HARBOR, FL	Departure	Jul 28, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Departure	Apr 30, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Arrival	Apr 30, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
San Juan PRSJU	Departure	Apr 29, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Departure	Apr 18, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Arrival	Apr 18, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
San Juan PRSJU	Departure	Apr 17, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Departure	Dec 21, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Arrival	Dec 21, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Departure	Oct 4, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
ST. THOMAS HARBOR, VI	Arrival	Oct 4, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: February 13, 2002.

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

Frequently asked questions

Where is Defender now?: Defender (Tug, United States flag) was last seen on AIS on Jul 1, 2026, 18:06 UTC, moored, near Jacksonville (Gulf of Mexico). Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is Defender?: Defender is a tug sailing under the flag of United States, built in 1976. The vessel is 40 m long with a beam of 10 m and has a gross tonnage of 538.
Who is recorded as the owner or manager of Defender?: CROWLEY PUERTO RICO SERVICES INC is recorded as Managing owner (USCG) for Defender (source: US Coast Guard — Merchant Vessels of the United States (documented vessels)). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for Defender?: Voydar has no matched sanctions record displayed for Defender 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 Defender. Missing records do not establish whether the ship has been detained.

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