Compex — 2 prefixes (MA-L)

The vendor-compex entry groups two IEEE MA-L assignments that share a normalized slug: 00-40-29, registered simply as "Compex" with no city-level address beyond "US," and 00-80-48, registered to "COMPEX INCORPORATED" at 4055 East La Palma, Anaheim, CA. A third Compex-named block, 04-F0-21 ("Compex Systems Pte Ltd," Singapore), slugifies to a different slug and is excluded from this entry — it is a separate Singapore legal entity with its own product line and belongs under its own vendor slug, not this one. The Anaheim registrant is the more substantiated of the two: a historical company profile describes COMPEX, Inc. as a 1987-founded Anaheim, CA networking-hardware maker producing Ethernet hubs and Wi-Fi routers, and identifies it as a wholly-owned subsidiary of Powermatic Data Systems, Ltd., a Singapore-listed public company — a claim from a single archival source, not independently corroborated here. Concrete products tie back to that OUI: the MX2216S stackable Fast Ethernet hub, the GR3008 Gigabit fiber hub/repeater, and the NetPassage WPE54G Wi-Fi router, the last of which carries one historical denial-of-service advisory (CVE-2006-0960) in its uConfig management agent. The bare "Compex"/"US" block (00-40-29) has no device or company page corroborating it beyond the registry string itself. No assignment date is recorded for either prefix: IEEE's OUI registry publishes none, and a third-party lookup tool shows identical "date registered" values for both unrelated registrant strings — a clear boilerplate/batch-import artifact, not a real per-assignment fact.

IEEE assignments in this group

00-40-29 → "Compex" (US, no street/city given) and 00-80-48 → "COMPEX INCORPORATED" (4055 East La Palma, Anaheim, CA 92807, US) [Confirmed] — the IEEE MA-L registry (local IEEE MA-L snapshot, lines 30200 and 38189)

Excluded similar entry

04-F0-21 → "Compex Systems Pte Ltd" (135 Joo Seng Road, Singapore 368363) is a separate legal entity that normalizes to a different slug ('compex-systems-pte') and is NOT part of this vendor-compex group [Confirmed] — the IEEE MA-L registry; this site's own tooling slugify logic

Registry / block size

both group prefixes are MA-L (24-bit OUI) [Confirmed] — the IEEE MA-L registry

Company identity (00-80-48)

COMPEX, Inc., Anaheim, CA — 1987-founded networking hardware maker (hubs, switches, Wi-Fi routers); one historical company profile describes it as a wholly-owned subsidiary of Powermatic Data Systems, Ltd. (Singapore, Sesdaq-listed) [Likely — single archival source, not independently corroborated] — https://www.premisesnetworks.com/doc/compex-inc-0001, https://www.govcb.com/government-vendors/profile-PRE00000000001451495-compex-inc-Anaheim-CA.htm

Notable products (00-80-48)

MX2216S stackable Fast Ethernet hub; GR3008 Gigabit Ethernet fiber hub/repeater; NetPassage WPE54G Wi-Fi router [Confirmed — product existence documented] — https://www.premisesnetworks.com/doc/mx2216sa-0001, https://www.route-fifty.com/2000/04/gigabit-ethernet-hub-supports-multiple-types-of-fiber-ports-for-server-farms/275009/

Security note (00-80-48)

CVE-2006-0960 — the uConfig management agent on the Compex NetPassage WPE54G allows a remote attacker to cause denial-of-service via crafted UDP datagrams; a single old (2006), low-severity, device-specific advisory [Confirmed] — https://www.cvedetails.com/cve/CVE-2006-0960/

Company/device context (00-40-29)

none found beyond the bare registry string "Compex"/"US" [Unknown]

Dates

IEEE's OUI registry (Registry, Assignment, Organization Name, Organization Address columns only) publishes no assignment/registration date for either prefix [Confirmed] — the IEEE MA-L registry. A third-party lookup tool shows IDENTICAL "date registered"/"last update" pairs ("09 November 2000" / "17 November 2015") for both 00-40-29 and 00-80-48 despite unrelated registrant strings, indicating a boilerplate/batch-import artifact rather than a real per-assignment date; not recorded as fact

[Confirmed] — https://maclookup.app/macaddress/004029, https://maclookup.app/macaddress/008048

Company status

Unknown — the Anaheim company profile describes historical (1990s–2000s) operations; no current activity or closure could be confirmed in this pass [Unknown]

Related vendors

04-F0-21 "Compex Systems Pte Ltd" (Singapore) is tracked separately, not under this entry; a corporate-family link between it, Powermatic Data Systems, and COMPEX Inc. (Anaheim) is plausible (both are Singapore-linked, era-consistent networking companies) but unconfirmed from sources checked [Unknown]

Analyst note

multiple independent OUI assignments (00-40-29, 00-80-48) plus a documented company profile, named products, and one CVE for the Anaheim registrant clear the bar for a substantive vendor entry; the bare 00-40-29 block rides along on the shared slug without independent corroboration.