What kind of ship is RFA Proteus?

RFA Proteus is a naval vessel sailing under the flag of United Kingdom, built in 2019 by Vard Tulcea. The vessel is 98.1 m long and has a gross tonnage of 6,133.

What sanctions and inspection records does Voydar hold for RFA Proteus?

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

RFA Proteus

Naval vessel · United Kingdom · built 2019 · AIS Class A

IMO9792539MMSI232047056Call signGPTULast AIS position Oct 1, 2026, 15:40 UTC

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In short

RFA Proteus (Naval vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 15:40 UTC, under way at 14 kn, in the Norwegian Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its last detected port call was at Castletown: arrived Jun 9, 2026, left Jun 19, 2026.

Vessel type: Naval vessel
Flag: United Kingdom
Year built: 2019
Gross tonnage: 6,133
Size (length × beam): 98 m
Registered owner: —

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Last reported position

received Oct 1, 2026, 15:40 UTC

Position: 68.2303° N, 15.643° E
Area: Norwegian Sea
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 14 kn
Course: 227°
Heading: 227°

68.2303° N, 15.643° E

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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.

A year of history in the Terminal (Plus) · the full archive since June 1, 2026 (Pro)

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Identity & particulars

Name: RFA Proteus
IMO numberWhat is an IMO number?: 9792539
MMSIWhat is an MMSI?: 232047056
Call signWhat is a call sign?: GPTU
Flag: United Kingdom
Vessel type: Naval vessel
AIS ship type: Military ops
Gross tonnageGross tonnage vs deadweight: 6,133
Length overall: 98.1 m
Beam: —
Year built: 2019

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 Fleet Auxiliary
Source: Wikidata · since 2023 · reported · confidence 0.8 · retrieved Sep 22, 2026
Ministry of Defence(Former)
Source: Wikidata · 2023 · reported · confidence 0.8 · retrieved Sep 22, 2026
P&O Maritime Services(Former)
Source: Wikidata · 2019–2023 · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: Vard Tulcea
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Vard Brattvaag
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

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
Jun 19, 2026, 09:42 UTC	Left CastletownAIS-detected	Voydar port-call detector (AIS geofence)
Jun 9, 2026, 04:04 UTC	Arrived at CastletownAIS-detected	Voydar port-call detector (AIS geofence)
Oct 10, 2023	Operator: Royal Fleet Auxiliary (previously Ministry of Defence)	Voydar relationship-change derivation (derived by Voydar from Wikidata)
Feb 14, 2023	Operator: Ministry of Defence (previously P&O Maritime Services)	Voydar relationship-change derivation (derived by Voydar from Wikidata)

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.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Castletown GBCSW	Jun 9, 2026, 04:04 UTC	Jun 19, 2026, 09:42 UTC	10 d 5 h

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

About RFA Proteus

RFA Proteus is a ship of the Royal Fleet Auxiliary within His Majesty's Naval Service of the United Kingdom. Its role is surveillance, acting as a platform for Remotely Operated Underwater Vehicles (ROUVs) and as a testbed for new specialist capabilities, required for monitoring waters important to UK interests. Acquired in 2023, the ship entered drydock at Cammell Laird for modification into a Multi-Role Ocean Surveillance Ship (MROSS). She formally entered service in October 2023. The ship was formerly named MV Topaz Tangaroa in 2017–2022, and was used as a platform supply vessel operated by P&O Maritime Logistics. The vessel was refitted after being sold to the U.K. Ministry of Defence in January 2023.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is RFA Proteus now?: RFA Proteus (Naval vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 15:40 UTC, under way at 14 kn, in the Norwegian Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is RFA Proteus?: RFA Proteus is a naval vessel sailing under the flag of United Kingdom, built in 2019 by Vard Tulcea. The vessel is 98.1 m long and has a gross tonnage of 6,133.
What sanctions and inspection records does Voydar hold for RFA Proteus?: Voydar has no matched sanctions record displayed for RFA Proteus 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 RFA Proteus. Missing records do not establish whether the ship has been detained.

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