Mitsubishi Precision Co., Ltd. — 2 prefixes (MA-L)

A MAC address starting with 00:1E:D9 or 08:00:70 belongs to Mitsubishi Precision Co., Ltd., a Japanese manufacturer of avionics, simulation, and precision-electronics systems. Devices carrying either prefix are consistent with industrial or professional-electronics hardware — driving/flight simulators, avionics-support equipment, or inertial-navigation and radio systems — rather than consumer networking gear.

Mitsubishi Precision was established 11 May 1962, originally as a Japan/US joint venture with General Precision Inc., and became fully Japanese-capitalized in February 1989. It is headquartered in Minato-ku, Tokyo, with a manufacturing and registry address in Kamakura, Kanagawa Prefecture, and is profiled on the Mitsubishi Group corporate site along with Bloomberg, D&B, Airframer, and ASAM listings. Named product lines include a driving-simulation system used for R&D and traffic-safety education and "SDMG" (Space Designed Model Generator) scenario-modeling software for driving simulators.

Mitsubishi Precision is a distinct legal entity from Mitsubishi Electric Corporation, which shares only the "Mitsubishi" brand affiliation. Security searches turned up several CVEs and CISA ICS advisories, but every one traced to Mitsubishi Electric's FA/CNC/HVAC/ICONICS product lines, not to Mitsubishi Precision. No CVE, ICS advisory, or malware/threat-intel association was found for Mitsubishi Precision itself as of an August 2026 search.

The registry copy shows two MA-L blocks under this organization, but their recorded addresses differ: 00:1E:D9 carries a complete Kamakura address, while 08:00:70 carries a truncated one ("325 KAMIMACHIYA 000 JP 00"). Treat the second block's address as incomplete registry data rather than a distinct company. A third-party aggregator lists "registration" dates for 00:1E:D9, but IEEE's own OUI data publishes no assignment dates — any such date is a database artifact of the aggregator, not an IEEE fact.

Prefixes

00:1E:D9, 08:00:70 (both MA-L / 24-bit blocks)

Secondary registry address

325 Kamimachiya, 000, JP 00 (block 08:00:70; incomplete as recorded)

Device class

avionics, inertial-navigation/radio systems, flight and driving simulators, visual/simulation systems

Also seen on

driving-simulation R&D/training systems and SDMG simulator-scenario software (mitsubishi.com)

Do not confuse with

Mitsubishi Electric Corporation — a separate company; its CVEs/ICS advisories do not apply here

IEEE registration date

Unknown — IEEE publishes none; third-party "date registered" fields are aggregator artifacts

IEEE assignment

2 MA-L prefixes → Mitsubishi Precision Co., Ltd. [Confirmed] — the IEEE MA-L registry 001ED9, the IEEE MA-L registry 080070

Registry / block size

MA-L (24-bit OUI) x2 [Confirmed] — the IEEE MA-L registry 001ED9, the IEEE MA-L registry 080070

HQ / country

345 Kamimachiya, Kamakura-City, Kanagawa-Prefecture, JP 247-8505 (registry address for 00:1E:D9); corporate HQ Minato-ku, Tokyo [Confirmed registry address / Likely HQ] — the IEEE MA-L registry 001ED9, https://www.mitsubishi.com/en/company/detail/210000063.html

Second block address quality

08:00:70 registry address recorded incomplete ("325 KAMIMACHIYA 000 JP 00") [Confirmed as recorded] — the IEEE MA-L registry 080070

Company status

active [Likely] — https://www.mitsubishi.com/en/company/detail/210000063.html

Founded

11 May 1962 (originally a Japan/US joint venture with General Precision Inc.; fully Japanese-capital since Feb 1989) [Likely] — https://www.mitsubishi.com/en/company/detail/210000063.html

Device types

avionics, space/inertial-navigation/radio systems, flight/driving simulation systems, visual systems, electronics application systems [Likely] — https://www.mitsubishi.com/en/company/detail/210000063.html, https://www.airframer.com/direct_detail.html?company=119794

Notable products

driving-simulation system for R&D/traffic-safety education; SDMG (Space Designed Model Generator) simulator-scenario software [Likely] — https://www.mitsubishi.com/en/company/detail/210000063.html

Verified sample prefixes (both MA-L, Mitsubishi Precision Co., Ltd.)

00:1E:D9, 08:00:70 [Confirmed] — the IEEE MA-L registry 001ED9, the IEEE MA-L registry 080070

Third-party date caveat

maclookup.app shows "Initial registration: 31 December 2007 / Most recent update: 17 November 2015" for 00:1E:D9; this is an aggregator database artifact, not an IEEE-published assignment date — IEEE's public OUI data contains no date fields

[Confirmed as caveat] — https://maclookup.app/macaddress/001ED9

Security/malware association

no CVE, CISA/ICS-CERT advisory, or malware/threat-intel record found for "Mitsubishi Precision" as of an August 2026 search; CVEs surfaced for "Mitsubishi Electric" (e.g. CVE-2023-6943, CVE-2024-7587) belong to a distinct, unrelated Mitsubishi Group company [Confirmed negative] — https://www.cvedetails.com/vulnerability-list/vendor_id-7924/Mitsubishi-Electric.html, https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02, https://www.cisa.gov/news-events/ics-advisories/icsa-26-169-05

Related vendors

Mitsubishi Electric Corporation — separate, unrelated legal entity; do not attribute its advisories or products to Mitsubishi Precision

Analyst note

OUIs 00:1E:D9 and 08:00:70 are registered to Mitsubishi Precision Co., Ltd., a Japanese avionics/simulation-systems manufacturer; a device presenting a MAC in either block is consistent with that vendor's registration, but this does not extend to any other Mitsubishi Group entity such as Mitsubishi Electric, whose security advisories are unrelated.