Voydar has no displayable AIS position for Mirai in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.

What kind of ship is Mirai?

Mirai is a research vessel, built in 1969 by IHI Marine United. The vessel is 128.5 m long with a beam of 19 m and has a gross tonnage of 8,706.

Who is recorded as the owner or manager of Mirai?

Japan Agency for Marine-Earth Science and Technology is recorded as Registered owner for Mirai (source: Wikidata). This source record does not independently confirm today’s ownership or management.

What sanctions and inspection records does Voydar hold for Mirai?

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

Mirai

Research vessel · built 1969

IMO6919423No AIS position on record

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In short

Mirai (Research vessel) has no AIS position on record with Voydar. Registered owner: Japan Agency for Marine-Earth Science and Technology (source: Wikidata).

Vessel type: Research vessel
Flag: —
Year built: 1969
Gross tonnage: 8,706
Size (length × beam): 129 m × 19 m
Registered owner: Japan Agency for Marine-Earth Science and Technology

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Last reported position

No AIS position on record for this vessel. Identity and particulars are below.

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Identity & particulars

Name: Mirai
IMO numberWhat is an IMO number?: 6919423
MMSIWhat is an MMSI?: —
Call signWhat is a call sign?: —
Flag: —
Vessel type: Research vessel
Gross tonnageGross tonnage vs deadweight: 8,706
Length overall: 128.5 m
Beam: 19 m
Year built: 1969

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.

Registered owner: Japan Agency for Marine-Earth Science and Technology
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Builder: IHI Marine United
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 23, 2016	Reported departure from NomeAuthority-reported	USACE foreign traffic vessel entrances & clearances
Sep 23, 2016	Reported arrival at NomeAuthority-reported	USACE foreign traffic vessel entrances & clearances
Oct 6, 2015	Reported departure from UNALASKA ISLAND, ALASKA (INCLUDING DUTCH & ILIULIUK HARBORS)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.

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.

Reported by authorities Authority-reported

Port	Record	Date (UTC)	Berth	Source
Nome USOME	Departure	Sep 23, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
Nome USOME	Arrival	Sep 23, 2016(date only)	—	USACE foreign traffic vessel entrances & clearances
UNALASKA ISLAND, ALASKA (INCLUDING DUTCH & ILIULIUK HARBORS)	Departure	Oct 6, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
UNALASKA ISLAND, ALASKA (INCLUDING DUTCH & ILIULIUK HARBORS)	Arrival	Oct 6, 2015(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Departure	Aug 29, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Arrival	Aug 29, 2014(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Departure	Oct 8, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Arrival	Oct 7, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Departure	Aug 27, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Ponce PRPSE	Arrival	Aug 26, 2013(date only)	—	USACE foreign traffic vessel entrances & clearances
Nome USOME	Departure	Oct 6, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances
Nome USOME	Arrival	Oct 5, 2012(date only)	—	USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: October 13, 2004.

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

About Mirai

RV Mirai is a Japanese oceanographic research vessel. She was originally built as the nuclear-powered general cargo ship Mutsu, but never carried commercial cargo.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is Mirai now?: Voydar has no displayable AIS position for Mirai in this profile. A coverage gap does not establish whether the ship is transmitting or where it is now.
What kind of ship is Mirai?: Mirai is a research vessel, built in 1969 by IHI Marine United. The vessel is 128.5 m long with a beam of 19 m and has a gross tonnage of 8,706.
Who is recorded as the owner or manager of Mirai?: Japan Agency for Marine-Earth Science and Technology is recorded as Registered owner for Mirai (source: Wikidata). This source record does not independently confirm today’s ownership or management.
What sanctions and inspection records does Voydar hold for Mirai?: Voydar has no matched sanctions record displayed for Mirai 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 Mirai. Missing records do not establish whether the ship has been detained.

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