Where is USNS Samuel L. Cobb now?

Seadar has no displayable AIS position for USNS Samuel L. Cobb in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.

What kind of ship is USNS Samuel L. Cobb?

USNS Samuel L. Cobb is a ship, built in 1985 by American Ship Building Company. The vessel has a gross tonnage of 21,471.

What sanctions and inspection records does Seadar hold for USNS Samuel L. Cobb?

Seadar has no matched sanctions record displayed for USNS Samuel L. Cobb from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for USNS Samuel L. Cobb. Missing records do not establish whether the ship has been detained.

USNS Samuel L. Cobb

ship · built 1985

IMO8310097No AIS position on record

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In short

USNS Samuel L. Cobb (ship) has no AIS position on record with Seadar.

Vessel type: ship
Flag: —
Year built: 1985
Gross tonnage: 21,471
Size (length × beam): —
Registered owner: —

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Photo of USNS Samuel L. Cobb — Photo: CAPT. Jack C. Goldthorpe · Licence: Public domain · via Wikimedia Commons

Last reported position

No AIS position on record for this vessel. Identity and particulars are below.

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Identity & particulars

Name: USNS Samuel L. Cobb
IMO numberWhat is an IMO number?: 8310097
MMSIWhat is an MMSI?: —
Call signWhat is a call sign?: —
Flag: —
Vessel type: ship
Gross tonnageGross tonnage vs deadweight: 21,471
Length overall: —
Beam: —
Year built: 1985

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.

Operator: United States Navy
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: American Ship Building Company
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

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

Date	Event	Source
Jul 21, 2009	Reported departure from HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Apr 16, 2009	Reported departure from San DiegoAuthority-reported	USACE foreign traffic vessel entrances & clearances
Jun 10, 2007	Reported arrival at CARQUINEZ STRAIT, CAAuthority-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 Seadar 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
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Jul 21, 2009(date only)	—	USACE foreign traffic vessel entrances & clearances
San Diego USSAN	Departure	Apr 16, 2009(date only)	—	USACE foreign traffic vessel entrances & clearances
CARQUINEZ STRAIT, CA	Arrival	Jun 10, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
PEARL HARBOR, OAHU, HI	Departure	Feb 28, 2007(date only)	—	USACE foreign traffic vessel entrances & clearances
YABUCOA HARBOR, PR	Departure	Aug 10, 2005(date only)	—	USACE foreign traffic vessel entrances & clearances
YABUCOA HARBOR, PR	Arrival	Aug 8, 2005(date only)	—	USACE foreign traffic vessel entrances & clearances
Corpus Christi USCRP	Departure	Mar 16, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Departure	Feb 27, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Arrival	Feb 26, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Departure	Jan 19, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Arrival	Jan 19, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Charleston USCHS	Departure	Nov 25, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: January 18, 2002.

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

About USNS Samuel L. Cobb

USNS Samuel L. Cobb (T-AOT-1123) was originally named the MV Samuel L. Cobb and used for transport of military assets in various theaters. It was not until the outbreak of the Iraq war in 2003 when the ship was purchased by the United States Navy that it was fully put under the operation of Military Sealift Command. This ship also had a refit to expand its abilities to do underway replenishment of multiple ships. The ship was named after Samuel L. Cobb, the Master of the SS Alcoa Guide during World War II. Cobb was awarded the Merchant Marine Distinguished Service Medal for heroism and meritorious service under unusual hazards. On the morning of February 9, 2024, the ship was observed being towed through the Brazos Santiago Pass at South Padre Island, presumably for recycling at the Brownsville shipyards.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is USNS Samuel L. Cobb now?: Seadar has no displayable AIS position for USNS Samuel L. Cobb in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.
What kind of ship is USNS Samuel L. Cobb?: USNS Samuel L. Cobb is a ship, built in 1985 by American Ship Building Company. The vessel has a gross tonnage of 21,471.
What sanctions and inspection records does Seadar hold for USNS Samuel L. Cobb?: Seadar has no matched sanctions record displayed for USNS Samuel L. Cobb from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for USNS Samuel L. Cobb. Missing records do not establish whether the ship has been detained.

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