Where is SD Northern River now?

SD Northern River (Offshore supply vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 15:43 UTC, under way at 10.9 kn, in the Mediterranean Sea. The crew-entered destination was DEVONPORT (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 14:12 UTC). This report does not confirm the ship’s current route.

What kind of ship is SD Northern River?

SD Northern River is an offshore supply vessel sailing under the flag of United Kingdom, built in 1998 by Myklebust Verft. The vessel is 92.8 m long with a beam of 18.8 m and has a gross tonnage of 3,612.

What sanctions and inspection records does Voydar hold for SD Northern River?

Voydar has no matched sanctions record displayed for SD Northern River 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. SD Northern River has 4 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

SD Northern River

Offshore supply vessel · United Kingdom · built 1998 · AIS Class A

IMO9179323MMSI235090402Call sign2FDV4Last AIS position Oct 1, 2026, 15:43 UTC

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In short

SD Northern River (Offshore supply vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 15:43 UTC, under way at 10.9 kn, in the Mediterranean Sea. Its crew-entered AIS destination is DEVONPORT, with an ETA of Oct 14, 2026, 07:00 UTC; its reported draught is 4.8 m (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 14:12 UTC). Its last detected port call was at Studland: arrived Jun 9, 2026, left Jun 9, 2026.

Vessel type: Offshore supply vessel
Flag: United Kingdom
Year built: 1998
Gross tonnage: 3,612
Size (length × beam): 93 m × 19 m
Registered owner: —

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Photo of SD NORTHERN RIVER — Photo: Mark Harkin · Licence: CC BY 2.0 · via Wikimedia Commons

Last reported position

received Oct 1, 2026, 15:43 UTC

Position: 34.4804° N, 32.5491° E
Area: Mediterranean Sea
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 10.9 kn
Course: 270°
Heading: 271°

34.4804° N, 32.5491° 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.

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Identity & particulars

Name: SD Northern River
IMO numberWhat is an IMO number?: 9179323
MMSIWhat is an MMSI?: 235090402
Call signWhat is a call sign?: 2FDV4
Flag: United Kingdom
Vessel type: Detailed type from WikidataOffshore supply vessel
AIS ship type: Other
Gross tonnageGross tonnage vs deadweight: 3,612
Length overall: 92.8 m
Beam: 18.8 m
Year built: 1998

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.

Builder: Myklebust Verft
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 9, 2026, 09:56 UTC	Left StudlandAIS-detected	Voydar port-call detector (AIS geofence)
Jun 9, 2026, 08:47 UTC	Arrived at StudlandAIS-detected	Voydar port-call detector (AIS geofence)
Jun 9, 2026, 08:21 UTC	Left StudlandAIS-detected	Voydar port-call detector (AIS geofence)
Jun 9, 2026, 07:00 UTC	Arrived at StudlandAIS-detected	Voydar port-call detector (AIS geofence)
Jul 2, 2025	Inspection at Mobile, Alabama	USCG PSIX / CGMIX inspections
Mar 17, 2004	Reported departure from GalvestonAuthority-reported	USACE foreign traffic vessel entrances & clearances
Oct 8, 2003	Reported arrival at Texas CityAuthority-reported	USACE foreign traffic vessel entrances & clearances
Oct 2, 2003	Reported departure from BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LAAuthority-reported	USACE foreign traffic vessel entrances & clearances
Dec 12, 2002	Inspection at TEXAS CITY, Texas	USCG PSIX / CGMIX inspections
Oct 30, 2002	Inspection at TEXAS CITY, Texas	USCG PSIX / CGMIX inspections
Aug 12, 2002	Inspection at TEXAS CITY, Texas	USCG PSIX / CGMIX inspections

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.

Safety & inspections

Inspections

not recorded

Detentions

Deficiencies

Date	Type	Port	Findings
Jul 2, 2025	Vessel Inspection	Mobile, Alabama	clean
Dec 12, 2002	Vessel Inspection	TEXAS CITY, Texas	clean
Oct 30, 2002	Vessel Inspection	TEXAS CITY, Texas	clean
Aug 12, 2002	Vessel Inspection	TEXAS CITY, Texas	clean

Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Voydar; the incumbents charge for this.

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
Studland GBSJY	Jun 9, 2026, 08:47 UTC	Jun 9, 2026, 09:56 UTC	1 h 9 min
Studland GBSJY	Jun 9, 2026, 07:00 UTC	Jun 9, 2026, 08:21 UTC	1 h 21 min

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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Galveston USGLS	Departure	Mar 17, 2004(date only)	—	USACE foreign traffic vessel entrances & clearances
Texas City USTXT	Arrival	Oct 8, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Departure	Oct 2, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Arrival	Oct 2, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
Galveston USGLS	Departure	Sep 25, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
Galveston USGLS	Arrival	Aug 27, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Departure	Aug 15, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Arrival	Aug 14, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Arrival	Aug 9, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Departure	Aug 8, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Departure	Aug 4, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances
BAYOU LAFOURCHE AND LAFOURCHE-JUMP WATERWAY, LA	Arrival	Aug 3, 2003(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: August 9, 2002.

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

About SD Northern River

SD Northern River is a large multi-purpose auxiliary ship operated by Serco Marine Services in support of the United Kingdom's Naval Service and is currently the largest ship operated by Serco Marine Services, both in terms of dimensions and gross tonnage. Her duties involve target towing during naval training exercises, transport of naval equipment, noise ranging and data gathering, as well as serving as a submarine escort/rescue vessel. SD Northern River can embark the NATO Submarine Rescue System. SD Northern River also reportedly specializes in Special Forces (SF) operations, participating, for instance, in Exercise Chameleon 23-1 off the British Sovereign Base Areas in Cyprus in early 2023.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is SD Northern River now?: SD Northern River (Offshore supply vessel, United Kingdom flag) was last seen on AIS on Oct 1, 2026, 15:43 UTC, under way at 10.9 kn, in the Mediterranean Sea. The crew-entered destination was DEVONPORT (voyage report via AISstream.io global terrestrial AIS, received Oct 1, 2026, 14:12 UTC). This report does not confirm the ship’s current route.
What kind of ship is SD Northern River?: SD Northern River is an offshore supply vessel sailing under the flag of United Kingdom, built in 1998 by Myklebust Verft. The vessel is 92.8 m long with a beam of 18.8 m and has a gross tonnage of 3,612.
What sanctions and inspection records does Voydar hold for SD Northern River?: Voydar has no matched sanctions record displayed for SD Northern River 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. SD Northern River has 4 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

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