SAN ANTONIO (IMO 8974403)

SAN ANTONIO is an Offshore Supply Ship 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 237 and a deadweight tonnage of 0. Given its configuration, it is utilized for specialized offshore support operations. The vessel is classed by Other, which is not listed as an IACS member. No recent geographic observation areas were provided in the current data. The vessel has operated under one former name and two former flag states. Over the last 36 months it has had 1 port state control (PSC) inspection and no detentions. The most recent inspection was on 4 June 2026.

Frequently asked questions

What is the vessel type of SAN ANTONIO?

SAN ANTONIO is an Offshore Supply Ship. It was built in 1994 and is currently in its 32nd year of service.

What is the gross tonnage of SAN ANTONIO?

The vessel reports a gross tonnage of 237. Its deadweight tonnage is recorded as 0.

Which flag does the vessel fly?

The vessel currently flies the United States of America flag. It has operated under two different flag states previously in its history.

How many PSC inspections has the vessel had?

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 4 June 2026. All-time records show 1 inspection since 2026 and no detentions.

What is the history of name and flag changes?

The vessel has been registered under 1 former name. Additionally, it has operated under 2 different flags during its service life.

Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.