Grass Valley, A Belden Brand — 3 prefixes (MA-L)

A MAC address beginning 00:D0:8E, 00:50:1E, or 00:B0:09 belongs to Grass Valley, A Belden Brand, and typically identifies professional broadcast video/audio equipment — routers, switchers, or multiviewers — rather than consumer hardware.

Grass Valley traces back to the original Grass Valley Group (Nevada City, CA), passed through a Thomson Grass Valley era, and was acquired by Belden on February 6, 2014 for roughly $220M. In March 2014 it merged with Miranda Technologies, also a prior Belden acquisition, to form the combined company that continues to operate under the Grass Valley brand name.

Belden has since divested Grass Valley, per Belden's own "Grass Valley Divestiture" press release, so the "A Belden Brand" suffix in the registered vendor name reflects historical/point-in-time ownership rather than confirmed current ownership. Grass Valley itself remains an active, identifiable broadcast-technology manufacturer with a substantial, currently-shipping product catalog.

All three confirmed prefixes share the same Montreal, Quebec registry address and IEEE MA-L classification, consistent with one company registering blocks for its networked broadcast infrastructure — IP-capable routers, switchers, multiviewers, and orchestration platforms that increasingly move video over Ethernet/IP under the SMPTE ST 2110-class AMPP ecosystem.

No OUI blocks beyond the three in the IEEE registry were found, and no historical assignments were found under predecessor names (Grass Valley Group, Thomson Grass Valley, Miranda Technologies). No security advisories or CVEs were found naming this vendor — a null result, not a clean bill of health.

IEEE assignment

3 confirmed prefixes (00:D0:8E, 00:50:1E, 00:B0:09) → "Grass Valley, A Belden Brand", registered Montreal, Quebec, CA [Confirmed] — the IEEE MA-L registry (local IEEE mirror)

Registry / block size

MA-L (24-bit OUI); 3 assignments, all at the same Montreal address; no MA-M/MA-S entries found [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

HQ / registered address

3499 Douglas B. Floreani, Montreal, Quebec H4S 2C6, CA (registry address, as printed in the IEEE record) [Confirmed] — the IEEE MA-L registry

Company status

active, currently operating broadcast-technology manufacturer [Confirmed] — grassvalley.com. Belden has since divested Grass Valley, per Belden's own press release — the "A Belden Brand" naming reflects historical/point-in-time ownership [Confirmed] — belden.com

Company lineage

Grass Valley Group (Nevada City, CA) → Thomson Grass Valley → acquired by Belden Feb 6, 2014 (~$220M) → merged March 2014 with Miranda Technologies (Belden-acquired 2012) → continues under the Grass Valley brand

[Confirmed] — en.wikipedia.org/wiki/Grass_Valley_(company), theunion.com, tvtechnology.com

Device types

broadcast video/audio routers, switchers, IP multiviewers, signal-processing frames, video servers, IP production orchestration [Confirmed] — grassvalley.com

Notable products

Altair 12G Routers, Sirius 800/12G Compact routers, GV Orbit orchestration, Kaleido IP multiviewers, Densite signal-processing frames, AMPP (Agile Media Processing Platform) [Confirmed] — grassvalley.com

Security/vulnerability context

no CVEs or ICS-CERT/CISA advisories found naming Grass Valley or "A Belden Brand" equipment [Unknown] — null result, not independently confirmed clean

IEEE registration date

not published — IEEE's public OUI data (Registry, Assignment, Organization Name, Organization Address) carries no assignment/registration date; no third-party date should be attributed to IEEE for these prefixes [Confirmed] — the IEEE MA-L registry

Related vendors

Miranda Technologies (merged into Grass Valley, March 2014); Thomson Grass Valley (predecessor name) — possible additional historical OUIs under predecessor names not found [Likely] — en.wikipedia.org/wiki/Grass_Valley_(company)

Analyst note

three MA-L blocks share one Montreal registrant and strong, independently-verified company substance (real manufacturer, extensive networked broadcast product line, documented acquisition lineage) — this is not a bare single-OUI shell.