Insta Elektro GmbH — 2 prefixes (MA-L)

A MAC address beginning with 00:23:65 or 00:0F:17 identifies hardware manufactured by Insta Elektro GmbH (trading as Insta GmbH), a German building-automation OEM headquartered in Lüdenscheid, North Rhine-Westphalia. Both prefixes are full 24-bit MA-L blocks registered to the identical company name and address, not shared IEEE bases, so a device carrying either resolves specifically to Insta rather than to an unrelated third party sub-allocated beneath a shared range.

Insta is a subsidiary of the Gira group and one of the original developers of the "instabus" protocol that evolved into the KNX building-automation standard; the company reports roughly 500 employees, including more than 80 engineers, and has operated since 1970. It largely manufactures white-label OEM components for other brands, including Gira, Hager, Belimo, and Schneider Electric, rather than selling under its own name to end consumers.

Insta's product line is exclusively KNX and DALI building-automation gear: switching, dimming, heating, and shading actuators; push-button and sensor interfaces; power supplies, couplers, and KNX IP routers/interfaces; DALI-2 actuators and sensors; and Matter-certified actuators under its AUTARIC smart-energy brand. No source found ties a specific product model to either 00:23:65 or 00:0F:17 individually, so the device class here is a vendor-line inference, not a confirmed per-prefix binding.

IEEE's public MA-L registry publishes no assignment date for either prefix. A third-party aggregator, maclookup.app, displays 2004-02-12 for 00:0F:17 and 2008-10-25 for 00:23:65, but these are database artifacts of that aggregator, not IEEE facts, and are not reported here as registration dates.

IEEE assignment

2 prefixes → Insta Elektro GmbH, registered Lüdenscheid, NRW, DE [Confirmed] — the IEEE MA-L registry 002365, the IEEE MA-L registry 000F17 — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); holds 2 independent IEEE prefixes, each its own full block (not a shared IEEE base such as 70:B3:D5 or 8C:1F:64) [Confirmed] — the IEEE MA-L registry 002365, the IEEE MA-L registry 000F17. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.

HQ / country

Hohe Steinert 10, Lüdenscheid, NRW, DE 58509 [Confirmed] — the IEEE MA-L registry 002365, the IEEE MA-L registry 000F17

Company status

active — Gira group subsidiary, founded 1970, ~500 employees including 80+ engineers [Confirmed] — https://www.gira.com/en/en/company/milestones/50-years-insta

Device types

KNX actuators, sensors, push-button interfaces; KNX system components (power supplies, couplers, routers, IP interfaces); DALI-2 actuators/sensors; Matter-certified actuators [Likely] — https://www.insta.de/en

Notable products

AUTARIC KNX Smart Grid Interface (energy management), KNX IoT / Matter-over-Thread devices [Likely] — https://www.insta.de/kompetenzen/technologie

Verified sample prefixes (both MA-L, Insta Elektro GmbH)

00:23:65, 00:0F:17 [Confirmed] — the IEEE MA-L registry 002365, the IEEE MA-L registry 000F17

Special note

Two full 24-bit MA-L registrations under the identical name/address — not a shared IEEE base, so ownership of each block belongs solely to Insta. No per-prefix product/SKU binding was found as of an August 2026 search; device class is a vendor-catalog inference only.

[Confirmed] — the IEEE MA-L registry 002365, the IEEE MA-L registry 000F17

Related vendors

Gira (parent group); OEM client relationships named for Hager, Belimo, and Schneider Electric (Insta manufactures white-label components for these brands; this does not imply any shared OUI ownership) [Likely] — https://www.insta.de/kompetenzen/technologie

Analyst note

An Insta-registered OUI (00:23:65 or 00:0F:17) on a globally-administered address indicates Insta-manufactured building-automation hardware, most plausibly a KNX or DALI component given the vendor's exclusive product focus; the precise device model cannot be confirmed from public sources alone.

[Likely] — https://www.insta.de/en