What kind of ship is MAERSK MONTE ALTO?

MAERSK MONTE ALTO is a container ship sailing under the flag of Singapore, built in 2005 by Hanwha Ocean. The vessel is 272 m long and has a gross tonnage of 69,132.

Who is recorded as the owner or manager of MAERSK MONTE ALTO?

Maersk A/S is recorded as ISM manager for MAERSK MONTE ALTO (source: EU MRV (THETIS-MRV) emissions; reporting year 2025). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for MAERSK MONTE ALTO?

Voydar has no matched sanctions record displayed for MAERSK MONTE ALTO from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for MAERSK MONTE ALTO. Missing records do not establish whether the ship has been detained.

MAERSK MONTE ALTO

Container ship · Singapore · built 2005 · AIS Class A

IMO9283227MMSI563050600Call sign9V8403Last AIS position Sep 21, 2026, 08:12 UTC

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In short

MAERSK MONTE ALTO (Container ship, Singapore flag) was last seen on AIS on Sep 21, 2026, 08:12 UTC, under way at 14.8 kn, in the North Atlantic Ocean. 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 Altenwerder: arrived Sep 6, 2026, left Sep 20, 2026. ISM manager: Maersk A/S (source: EU MRV (THETIS-MRV) emissions, reporting year 2025).

Vessel type: Container ship
Flag: Singapore
Year built: 2005
Gross tonnage: 69,132
Size (length × beam): 272 m
ISM manager: Maersk A/S

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Last reported position

received Sep 21, 2026, 08:12 UTC

Position: 40.1106° N, 73.8272° W
Area: North Atlantic Ocean
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 14.8 kn
Course: 183°
Heading: 183°

40.1106° N, 73.8272° W

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Last 30 days: 1 port call (Altenwerder).

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: MAERSK MONTE ALTO
IMO numberWhat is an IMO number?: 9283227
MMSIWhat is an MMSI?: 563050600
Call signWhat is a call sign?: 9V8403
Flag: Singapore
Vessel type: Container ship
AIS ship type: Cargo (hazardous cat. A)
Gross tonnageGross tonnage vs deadweight: 69,132
Length overall: 272 m
Beam: —
Year built: 2005

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.

ISM manager: Maersk A/S
Source: EU MRV (THETIS-MRV) emissions · reporting year 2025 · reported · confidence 0.9 · retrieved Oct 5, 2026
Builder: Hanwha Ocean
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
Sep 20, 2026, 08:30 UTC	Left AltenwerderAIS-detected	Voydar port-call detector (AIS geofence)
Sep 6, 2026, 16:10 UTC	Arrived at AltenwerderAIS-detected	Voydar port-call detector (AIS geofence)
Sep 4, 2026, 08:52 UTC	Left AltenwerderAIS-detected	Voydar port-call detector (AIS geofence)
Jul 19, 2026, 16:38 UTC	Arrived at AltenwerderAIS-detected	Voydar port-call detector (AIS geofence)
Jul 19, 2026, 16:34 UTC	Left MarchwoodAIS-detected	Voydar port-call detector (AIS geofence)
Jul 17, 2026, 05:00 UTC	Arrived at MarchwoodAIS-detected	Voydar port-call detector (AIS geofence)
Dec 19, 2016	Reported arrival at HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Oct 31, 2016	Reported departure from HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances
Oct 31, 2016	Reported arrival at HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)Authority-reported	USACE foreign traffic vessel entrances & clearances

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.

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

Year	CO₂ emitted	Fuel burned	Time at sea	CO₂ / n mile
2020	4,602 t	1,476 t	28 days	615 kg
2025	27,858 t	8,936 t	135 days	585 kg

Technical efficiency: EEXI (12.9 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

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
Altenwerder DEHHV	Sep 6, 2026, 16:10 UTC	Sep 20, 2026, 08:30 UTC	13 d 16 h
Altenwerder DEHHV	Jul 19, 2026, 16:38 UTC	Sep 4, 2026, 08:52 UTC	46 d 16 h
Marchwood GBMAW	Jul 17, 2026, 05:00 UTC	Jul 19, 2026, 16:34 UTC	2 d 11 h
Zandvliet BEZVT	Jul 14, 2026, 05:10 UTC	Jul 17, 2026, 05:00 UTC	2 d 23 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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Dec 19, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Oct 31, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Oct 31, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Sep 12, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Sep 12, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Jul 25, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Jul 25, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Jun 6, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Jun 6, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Apr 19, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Arrival	Apr 18, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
HOUSTON SHIP CHANNEL, TX (HOUSTON, TX)	Departure	Feb 29, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: September 7, 2014.

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

About MAERSK MONTE ALTO

Monte Sarmiento is a container ship owned and operated by Aliança Navegação, a subsidiary of A.P. Moller Singapore Pte. Ltd. The 272-metre (892 ft) long ship was built at Daewoo Shipbuilding & Marine Engineering in Okpo, South Korea in 2004/2005. Originally owned by Santa Containerschiffe GmbH, a subsidiary of Hamburg Süd, she has had four owners and been registered under three flags. The vessel is one of ten ships of the Monte class built for Hamburg Süd by Daewoo Shipbuilding & Marine Engineering and Daewoo Mangalia Heavy Industries between 2004 and 2009. Its new name is Maersk Monte Alto, sailing under the flag of Singapore. [1]

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is MAERSK MONTE ALTO now?: MAERSK MONTE ALTO (Container ship, Singapore flag) was last seen on AIS on Sep 21, 2026, 08:12 UTC, under way at 14.8 kn, in the North Atlantic Ocean. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report.
What kind of ship is MAERSK MONTE ALTO?: MAERSK MONTE ALTO is a container ship sailing under the flag of Singapore, built in 2005 by Hanwha Ocean. The vessel is 272 m long and has a gross tonnage of 69,132.
Who is recorded as the owner or manager of MAERSK MONTE ALTO?: Maersk A/S is recorded as ISM manager for MAERSK MONTE ALTO (source: EU MRV (THETIS-MRV) emissions; reporting year 2025). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for MAERSK MONTE ALTO?: Voydar has no matched sanctions record displayed for MAERSK MONTE ALTO from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for MAERSK MONTE ALTO. Missing records do not establish whether the ship has been detained.

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