HME Clear-Com — 2 prefixes (MA-L)

HME Clear-Com Ltd holds two MA-L (24-bit OUI) blocks in the cached IEEE registry snapshot, 00:0E:98 and 00:C0:68, both registered under the identical organization name and address — a straightforward consolidated-vendor case rather than a bare single-OUI shell. The registrant is a UK manufacturing entity, Companies House number 03439720, incorporated 25 September 1997 as Drake Electronics Limited, later renamed Vitec Group Communications Limited, then HME Clear-Com Ltd. The brand traces to Clear-Com, a professional real-time intercom company founded April 18, 1968 in San Francisco by Charlie Butten and Bob Cohen, whose first product (the RS-100) pioneered party-line intercom over standard XLR mic cable; the line later won a Technology & Engineering Emmy in 2010. HM Electronics, Inc. (HME), a Southern California maker of drive-thru restaurant headset systems, acquired Clear-Com in 2010, and the combined brand markets as "Clear-Com HME." Current products drawing on these OUI blocks are professional wireless digital intercom systems for broadcast, live events, and quick-service restaurants: the DX200/DX210/DX410 wireless intercom line, FreeSpeak wireless intercom, HelixNet digital partyline, and HS15/CC-400 headsets — plausible sources for MAC-addressable networked or RF-paired hardware. One archived, unmaintained source conflicts with three independent live databases on the registrant of 00:0E:98; that conflict is flagged below rather than silently resolved.

IEEE assignment

2 MA-L prefixes → "HME Clear-Com LTD." (identical org name and address for both blocks) [Confirmed] — the IEEE MA-L registry (lines 6369, 13238)

Registry / block size

MA-L (24-bit OUI); 2 confirmed prefixes; no MA-M or OUI-36 (MA-S) assignments found for this vendor [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (no match; an unrelated "HME Co.,ltd" of Japan appears in both files but is a different company)

Registered address (registry snapshot)

7400 Beach Drive, Cambridgeshire, GB CB25 9TP [Confirmed] — the IEEE MA-L registry. NOTE: current company-lookup sources (maclookup.app, Companies House) show "2000 Beach Drive, Cambridge Research Park, Waterbeach, Cambridge CB25 9TP" — same postcode/business park, differing street number; likely an address-format or snapshot-date variance rather than a different site, but not independently resolved here. [Likely] — https://find-and-update.company-information.service.gov.uk/company/03439720, https://maclookup.app/vendors/hme-clear-com-ltd

Company status

active (Companies House #03439720), SIC 32990 "other manufacturing n.e.c."; incorporated 25 September 1997 as Drake Electronics Limited, renamed Vitec Group Communications Limited, then HME Clear-Com Ltd [Confirmed] — https://find-and-update.company-information.service.gov.uk/company/03439720

Parent brand history

Clear-Com founded April 18, 1968 in San Francisco by Charlie Butten and Bob Cohen (first product: RS-100 party-line intercom); Technology & Engineering Emmy winner, 2010; acquired by HM Electronics, Inc. (HME) in 2010, now marketed as "Clear-Com HME"

[Confirmed] — https://en.wikipedia.org/wiki/Clear-Com, https://www.hme.com/about/

Device types

wireless digital intercom base stations and beltpacks/headsets for broadcast, live events, theatre, sports, houses of worship, aerospace/military, and quick-service restaurants [Confirmed] — https://en.wikipedia.org/wiki/Clear-Com, https://www.hme.com/techPdfs/399G216C.pdf

Notable products

DX200/DX210/DX410 wireless intercom systems, FreeSpeak wireless intercom (TEC Award nominee, 2020), HelixNet digital partyline, HS15/CC-400 headsets [Confirmed] — https://clearcom.com/DownloadCenter/manuals/DX210/DX210_User_Guide-400G751B.pdf, https://www.manualslib.com/manual/3421509/Hme-Clear-Com-Freespeak-Ii-1-9-Beltpack-With-Bluetooth.html, https://www.manualslib.com/manual/2892440/Hme-Clear-Com-Helixnet-Digital-Partyline.html

Date registered

Unknown / not applicable — IEEE's public OUI data (the IEEE MA-L registry: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date for either block. Third-party lookup tool maclookup.app displays "Registration Date" fields (2004-02-12 for 00:0E:98; 1998-04-22 for 00:C0:68) — these are database-scrape artifacts attributed to maclookup.app, NOT IEEE facts, and are not recorded as registration dates here

[Confirmed] — https://maclookup.app/vendors/hme-clear-com-ltd

Flagged discrepancy

one archived source (cavebear.com, unmaintained snapshot) attributes 00:0E:98 to "Accton Technology Corporation," conflicting with three independently-operated, currently-live sources (maclookup.app, hwaddress.com, api.macvendors.com) that agree on HME Clear-Com LTD for that prefix. Treated as stale/unreliable rather than a live conflict, but not silently resolved [Likely] — https://www.cavebear.com/archive/cavebear/Ethernet/vendor.html, https://hwaddress.com/oui-iab/00-0E-98/, https://maclookup.app/vendors/hme-clear-com-ltd

Security note

no CVEs, CISA/ICS advisories, or published vulnerability research found for Clear-Com, HME, or the DX/FreeSpeak/HelixNet product lines during this pass; professional broadcast/production AV vendor with no known elevated security-risk profile — absence of evidence, not evidence of a clean bill of health

[Unknown] — (no source; negative-result search)

Analyst note

substance criterion for a done vendor entry is met — identifiable, long-running professional AV manufacturer with product/device context and two OUI assignments, not a bare single-OUI registration.