Landis+Gyr S.A. — 3 prefixes (MA-L)

A MAC address beginning with 30:EB:5A, 6C:70:28, or 98:B1:77 belongs to Landis+Gyr S.A., typically seen on electricity or gas meter hardware manufactured at the company's Corinth, Greece plant.

Landis+Gyr S.A. is the operating entity behind that Corinth facility, which the company describes as its largest production site in Europe and second-largest worldwide after its Mexico plant. Established in 1972, the plant employs over 550 people across 30-plus automated lines, producing more than six million meters a year for utilities across Austria, Switzerland, Denmark, Poland, and other EMEA markets.

IEEE assignment (MA-L)

30:EB:5A → Landis+Gyr S.A., 78th km Old National Road Athens-Corinth, Corinth, GR 20100 [Confirmed] — the IEEE MA-L registry 30EB5A

IEEE assignment (MA-L)

6C:70:28 → Landis+Gyr S.A., same registered address [Confirmed] — the IEEE MA-L registry 6C7028

IEEE assignment (MA-L)

98:B1:77 → Landis+Gyr S.A., same registered address [Confirmed] — the IEEE MA-L registry 98B177

Registry / block size

MA-L (24-bit) ×3, all dedicated (non-shared) blocks; no MA-M or MA-S assignments found for this entity [Confirmed] — the IEEE MA-L registry; the IEEE MA-M registry; the IEEE MA-S registry. NOTE: IEEE public OUI data publishes NO assignment/registration date (columns are only Registry, Assignment, Organization Name, Organization Address); any third-party "date registered" value for these prefixes is a database artifact, not an IEEE fact.

Third-party corroboration

Wireshark the Wireshark manufacturer database carries the same three OUIs under short name "LandisGyr" / long name "Landis+Gyr S.A.", consistent with the IEEE rows; no date field was extracted or asserted from it [Confirmed] — the Wireshark manufacturer database

HQ / country

Corinth, Greece (registered manufacturing site; IEEE registry address) [Confirmed] — the IEEE MA-L registry 30EB5A

Company status

active [Confirmed] — https://www.landisgyr.eu/news/landisgyr-commemorates-50-years-of-state-of-the-art-production-in-greece/

Company substance

Corinth plant established 1972; described as Landis+Gyr's largest production facility in Europe and second-largest worldwide after its Mexico plant; 550+ employees; 30+ automated lines; capacity of over six million meters/year; ISO 9001/14001 and information-security certifications; exports to Austria, Switzerland, Denmark, Poland, Croatia, Bosnia, Finland, Slovenia and other EMEA utilities [Confirmed] — https://www.landisgyr.eu/news/landisgyr-commemorates-50-years-of-state-of-the-art-production-in-greece/, https://www.landisgyr.com/us/en/home/news-media/newsroom/2022/Landis-Gyr-Commemorates-50-Years-of-State-of-the-Art-Production-in-Greece, https://www.seve.gr/en/company/landisgyr-s-a/

Device types

residential and industrial/commercial electricity and gas meters (electromechanical and digital), including the E360 LTE and E660 lines [Confirmed] — https://www.landisgyr.eu/news/landisgyr-commemorates-50-years-of-state-of-the-art-production-in-greece/, https://www.seve.gr/en/company/landisgyr-s-a/

Network role

manufacturing/registrant entity behind physical meter hardware; OUIs expected on meter-side RF-mesh/PLC communication modules rather than IT/enterprise equipment [Likely] — https://www.landisgyr.eu/news/landisgyr-commemorates-50-years-of-state-of-the-art-production-in-greece/ (inferred from product/device context, not independently confirmed per network interface)

Security context

no CVE or ICS advisory names Landis+Gyr S.A. or the Corinth facility specifically, as of an August 2026 search; the CISA ICSA-23-026-07 / CVE-2022-3083 advisory on file elsewhere in this project (E850/ZMQ200 grid meter, CVSS v3.1 3.9 Low) is sourced to the Landis+Gyr product line generally, not confirmed to name this registrant

[Unknown for an S.A.-specific advisory] — https://www.cisa.gov/news-events/ics-advisories/icsa-23-026-07, https://nvd.nist.gov/vuln/detail/CVE-2022-3083

Related vendors

Landis+Gyr GmbH (DE, 64:01:FB), Landis+Gyr Ltd. (CH, 00:0F:93), Landis+Gyr (Alpharetta GA US, 00:1C:64), Landis+Gyr Equipamentos de Medição Ltda (BR, MA-S) — distinct IEEE registrants, same group [Confirmed] — /mac/vendor/landis-gyr/

Analyst note

a MAC starting 30:EB:5A, 6C:70:28, or 98:B1:77 identifies Landis+Gyr S.A. (Corinth, Greece) hardware specifically — a distinct registrant from other Landis+Gyr group entities; expect it on utility meter/AMI network segments rather than enterprise IT [Confirmed registrant identity; Likely network-role inference] — the IEEE MA-L registry, https://www.landisgyr.eu/news/landisgyr-commemorates-50-years-of-state-of-the-art-production-in-greece/