What kind of ship is HMS Mersey?

HMS Mersey is a naval vessel sailing under the flag of United Kingdom, built in 2003 by VT Group. The vessel is 79.5 m long and has a gross tonnage of 2,109.

What sanctions and inspection records does Seadar hold for HMS Mersey?

Seadar has no matched sanctions record displayed for HMS Mersey 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 HMS Mersey. Missing records do not establish whether the ship has been detained.

HMS Mersey

Naval vessel · United Kingdom · built 2003 · AIS Class A

IMO9261346MMSI234637000Call signGBSYLast AIS position Oct 1, 2026, 18:29 UTC

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In short

HMS Mersey (Naval vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 18:29 UTC, at anchor, near Cowes (English Channel). Its reported AIS draught is 4.7 m (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 13:12 UTC).

Vessel type: Naval vessel
Flag: United Kingdom
Year built: 2003
Gross tonnage: 2,109
Size (length × beam): 80 m
Registered owner: —

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Last reported position

received Oct 1, 2026, 18:29 UTC

Position: 50.7603° N, 1.1185° W
Area: English Channel
StatusWhat do AIS statuses mean?: At anchor
Speed: 0 kn
Course: 185°
Heading: 270°

50.7603° N, 1.1185° W

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Seadar detected no port call in the last 30 days.

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

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Identity & particulars

Name: HMS Mersey
IMO numberWhat is an IMO number?: 9261346
MMSIWhat is an MMSI?: 234637000
Call signWhat is a call sign?: GBSY
Flag: United Kingdom
Vessel type: Naval vessel
AIS ship type: Military ops
Gross tonnageGross tonnage vs deadweight: 2,109
Length overall: 79.5 m
Beam: —
Year built: 2003

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: Royal Navy
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: VT Group
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

About HMS Mersey

HMS Mersey is a River-class offshore patrol vessel of the British Royal Navy. Named after the River Mersey, she is the fifth RN vessel to carry the name and the first to be named Mersey in 84 years. Various tenders were renamed Mersey during their service with Mersey Division Royal Naval Reserve (HMS Eaglet) between the early 1950s and late 1970s. HMS Mersey was built by Vosper Thornycroft in Southampton, England to serve as a fishery protection vessel within the United Kingdom's waters along with her two sister ships Tyne and Severn. All three were commissioned into service in 2003 to replace the five older Island-class patrol vessels. She was commissioned into the Royal Navy on 28 November 2003. At that time, Mersey was not expected to commence duties until February 2004.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is HMS Mersey now?: HMS Mersey (Naval vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 18:29 UTC, at anchor, near Cowes (English Channel).
What kind of ship is HMS Mersey?: HMS Mersey is a naval vessel sailing under the flag of United Kingdom, built in 2003 by VT Group. The vessel is 79.5 m long and has a gross tonnage of 2,109.
What sanctions and inspection records does Seadar hold for HMS Mersey?: Seadar has no matched sanctions record displayed for HMS Mersey 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 HMS Mersey. Missing records do not establish whether the ship has been detained.

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