ALLISON S (IMO 8993588)
ALLISON S is a Tug built in 1994 and flying the United States of America flag, placing it in its 32nd year of service. The vessel reports a gross tonnage of 229 and has a deadweight tonnage of 0. This vessel is configured for specialized towing and assistance operations. The vessel is classed by Other and is not an IACS member. It has been observed in the Middle America and Gulf of Mexico region. The vessel has operated under one former name and one former flag state. Over the last 36 months it has had 1 port state control (PSC) inspection and no detentions. The most recent inspection was on 13 August 2026.
- Type: Tug
- Flag: United States of America
- Year built: 1994
- MMSI: 367007240
- Call sign: WDC3396
- Gross tonnage: 229
- Deadweight: 0 t
- Port State Control (PSC) inspections: 1 since 2026
- PSC detentions in the last 36 months: 0
- Last PSC inspection: 13/08/2026
- Registered owner · Ship manager: BISSO TOWBOAT CO INC (USA)
- Last AIS position: 30°25.3′N · 091°11.8′W · under way · received 3 October 2026 at 07:44 UTC
Frequently asked questions
What type of vessel is ALLISON S?
ALLISON S is a Tug. It was built in 1994 and is currently in its 32nd year of service.
What is the gross tonnage of ALLISON S?
The vessel reports a gross tonnage of 229. Its deadweight tonnage is recorded as 0.
Where has ALLISON S been operating recently?
The vessel has been observed in the Middle America and Gulf of Mexico region. This area represents its most recent recorded geographic activity.
How many inspections has ALLISON S undergone?
Over the last 36 months it has had 1 port state control (PSC) inspection and no detentions, with no deficiencies recorded. The most recent inspection was on 13 August 2026. All-time records show 1 inspection since 2026 and no detentions.
What is the flag history of ALLISON S?
The vessel currently flies the United States of America flag. Its history shows it has operated under one former flag state.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.