DMG MORI Digital Co., LTD — OUI 0080B8 (MA-L)

The MA-L block 00:80:B8 is registered to "DMG MORI Digital Co., LTD" at a Sapporo, Hokkaido address, the Japanese digital arm of the German-Japanese CNC machine-tool maker DMG Mori. The corporate group traces to Friedrich Gildemeister (founded 1870) and took its current shape through the merger of Germany's DMG (Deckel Maho Gildemeister) and Japan's Mori Seiki — rebranded DMG Mori Seiki AG in 2013 and DMG Mori Aktiengesellschaft in 2015, with headquarters in Bielefeld, Germany. On a network this OUI marks operational-technology gear, not consumer hardware: DMG Mori ships networked CNC machining centers and turning machines whose connectivity is delivered through embedded "IoTconnector" gateways feeding cloud and shop-floor systems. The important classification caveat is that the standard IoTconnector hardware is built on a Siemens SIMATIC IPC127E industrial PC (part 6BK1000-1MG00-0AA0) running Windows 10 IoT Enterprise — so a MAC observed inside a DMG Mori machine may carry a Siemens-registered OUI rather than 00:80:B8. Treat 00:80:B8 as a positive identifier of DMG Mori-branded equipment, but do not assume its absence means "not DMG Mori." Machine connectivity runs OPC-UA, MTConnect, and MQTT over Ethernet (with optional Wi-Fi and 4G/LTE modules), and the relevant security posture is general OT hardening — network segmentation, OPC-UA endpoint hardening, strict USB governance, and firewall isolation for non-patchable controllers; no DMG Mori-specific CVEs surfaced in this pass.

IEEE assignment

00:80:B8 → DMG MORI Digital Co., LTD [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv)

Registry / block size

MA-L (24-bit OUI) [Confirmed] — IEEE oui.csv. Found in oui.csv (MA-L) only; not present in mam.csv (MA-M) or oui36.csv (MA-S). NOTE: IEEE's public OUI data publishes NO assignment/registration date (columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.

Registry address / country

1-1-14 Techno park, Shimonopporo, Atsubetsuku, Sapporo Hokkaido, JP 004-0015 [Confirmed] — IEEE oui.csv (trailing whitespace trimmed)

Corporate HQ

Bielefeld, Germany (DMG Mori Aktiengesellschaft); Japanese entity DMG Mori Seiki Co. based in Japan [Confirmed] — en.wikipedia.org/wiki/DMG_Mori_Aktiengesellschaft

Company status

active [Confirmed] — en.dmgmori-ag.com

Vendor category

Industrial / OT — CNC machine-tool manufacturer; networked devices are embedded industrial machine controllers / IoT gateways inside CNC machining centers, turning machines, and automation equipment [Confirmed] — en.dmgmori.com/products/digitization/connectivity

Device types

embedded industrial PC / IoT gateway (IoTconnector, IoTconnector retrofit, IoTconnector flex) built into CNC machine-tool electrical cabinets; standard IoTconnector is based on the Siemens SIMATIC IPC127E (6BK1000-1MG00-0AA0) running Windows 10 IoT Enterprise, so observed MACs may carry a Siemens OUI rather than 00:80:B8; optional Wi-Fi and 4G/LTE expansion modules [Confirmed] — all4sps.com listing, en.dmgmori.com connectivity

Network protocols

OPC-UA, MTConnect, MQTT over 10/100 Mbps Ethernet (interface X1 on CELOS controllers); optional 802.11 Wi-Fi and 4G/LTE [Confirmed] — en.dmgmori.com/products/digitization/connectivity, support.machinemetrics.com

Industries served

aerospace, automotive (mobility), medical, semiconductor, die and mold, energy, education [Confirmed] — us.dmgmori.com

Security context

no DMG Mori-specific CVEs found in this pass; general OT/CNC risks apply (OPC-UA endpoint exposure, USB-based attacks, complex CELOS/MAPPS multi-subsystem surface). Standard controls: network segmentation, OPC-UA hardening, strict USB governance, MFA for remote access, air-gap/firewall isolation for non-patchable controllers. DMG Mori operates a Product Security Incident Response Team; no public advisories surfaced. [Likely] — cncmachines.com CNC hardening guide, us.dmgmori.com data-sovereignty blog

Company background

founded 1870 as Friedrich Gildemeister; DMG Mori Seiki AG (2013) then DMG Mori Aktiengesellschaft (2015) after the German DMG + Japanese Mori Seiki merger; ~€2.5B revenue (2023), ~7,500 employees, 21 production sites, 161 sales/service locations across 45 countries [Confirmed] — en.wikipedia.org/wiki/DMG_Mori_Aktiengesellschaft

Analyst note

00:80:B8 on a globally-administered address identifies DMG Mori-branded equipment; absence does not mean "not DMG Mori" because the IoTconnector gateway runs on Siemens IPC hardware that may present a Siemens OUI. Don't rely on OUI alone to inventory OT assets.