Zenith Electronics Corporation — 3 prefixes (MA-L)

A MAC address beginning with 00:0C:63, 00:80:F7, or 00:E0:DD belongs to Zenith Electronics Corporation, an Illinois-based consumer-electronics maker that has operated as a wholly owned LG Electronics subsidiary since 1999. The most plausible device class is a legacy cable or satellite set-top box or cable modem from Zenith's former Cable Products division, though no source ties a specific model number to a specific block.

Zenith traces to 1918 as the Chicago Radio Laboratory and built a 108-year history in radios, televisions, and remote controls. It invented the first practical wireless TV remote (Space Command, 1956), pioneered early pay-television with Phonevision, and led early North American HDTV development. LG Electronics acquired a majority stake in 1995, and Zenith emerged from a 1999 prepackaged bankruptcy as a wholly owned LG subsidiary.

All three blocks are exclusive MA-L (/24) assignments, not sub-allocated shared bases, so no shared-ownership risk applies here. Two registry addresses appear: 1000 Milwaukee Avenue, Glenview, IL for 00:80:F7 and 00:E0:DD, and 2000 Millbrook Drive, Lincolnshire, IL for 00:0C:63 — consistent with Zenith's own move from Glenview (its headquarters until the building's 2018 demolition) to Lincolnshire.

Four unrelated IEEE registrants also contain "Zenith" in their names — Chengdu Vision-Zenith Tech, Hangzhou Zenith Electron (singular), Shenzhen Zenith Intelligent Technology, and Power Zenith Inc. — and must not be conflated with this entry. No CVE or vendor security advisory for Zenith-branded hardware turned up in an August 2026 search of general CVE aggregators, consistent with a discontinued 1990s-2000s product line no longer sold under Zenith's own name.

IEEE assignment

3 prefixes → Zenith Electronics Corporation, registered at two Illinois addresses [Confirmed] — the IEEE MA-L registry (0080F7, 00E0DD, 000C63)

Registry / block size

MA-L (24-bit OUI) × 3; no MA-M, MA-S, or oui36 entries under this registrant [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry (no match), the IEEE MA-S registry (no match)

HQ / country

1000 Milwaukee Avenue, Glenview, IL 60025, US (00:80:F7, 00:E0:DD); 2000 Millbrook Drive, Lincolnshire, IL 60069, US (00:0C:63) [Confirmed] — the IEEE MA-L registry

Company status

active, operating as an LG Electronics subsidiary since 1999 [Confirmed] — en.wikipedia.org/wiki/Zenith_Electronics, zenith.com/heritage

Device types

legacy cable/satellite set-top boxes and cable modems, inferred from Zenith's Cable Products / Network Systems division (active through the 1990s, divested to Motorola in 2000) [Likely] — en.wikipedia.org/wiki/Zenith_Electronics, zenith.com/heritage

Notable products

television and radio receivers, Space Command wireless remote control (1956), Phonevision pay-television, early North American HDTV development, cable set-top boxes/modems [Confirmed] — en.wikipedia.org/wiki/Zenith_Electronics, zenith.com/heritage

Verified sample prefixes (all MA-L, Zenith Electronics Corporation)

00:0C:63, 00:80:F7, 00:E0:DD [Confirmed] — the IEEE MA-L registry, the Wireshark manufacturer database (cross-confirms as "ZenithElectr")

Registration dates

Unknown — IEEE's public the IEEE MA-L registry publishes no assignment/registration date column; a third-party "07 February 2003" figure for 00:0C:63 on maclookup.app is a database artifact, not an IEEE fact

[Confirmed absence of IEEE date] — the IEEE MA-L registry 000C63, maclookup.app/macaddress/000C63

Special note

four unrelated IEEE registrants also contain "Zenith" — Chengdu Vision-Zenith Tech.Co.,Ltd (48:A2:B8 MA-L, plus the MA-M sub-allocation 58:E8:76:80/28; the 58:E8:76 base itself is registered to the IEEE Registration Authority and shared among many unrelated registrants, so the base is not theirs, China); Hangzhou Zenith Electron Co.,Ltd (C0:CF:64, singular "Electron", China); Shenzhen Zenith Intelligent Technology Co.,Ltd (60:47:0A, China); Power Zenith Inc. (00:09:80, Japan) — none belong to this entry

[Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry 58E8768

Related vendors

LG Electronics (parent, since 1999); Zenith Data Systems (separate computer-systems line, divested to Groupe Bull in 1989, predates and is unrelated to these OUI registrations) [Confirmed] — en.wikipedia.org/wiki/Zenith_Electronics

Security context

no CVE or vendor security advisory for Zenith-branded hardware found in an August 2026 search of general CVE aggregators (cvedetails.com, nvd.nist.gov); a scoped absence-of-evidence finding, not an exhaustively confirmed zero

[Unknown] — en.wikipedia.org/wiki/Zenith_Electronics (company context only)

Analyst note

a Zenith Electronics OUI most plausibly indicates legacy cable/satellite set-top-box or cable-modem hardware from the company's former Cable Products division, not the earlier TV/radio consumer line, the separately-divested Zenith Data Systems computer line, or LG's later Zenith-branded ATSC converter boxes (typically network-less); today's Zenith does not ship network-facing hardware under its own name, so encountering this OUI on a live network likely indicates legacy or decommissioned equipment

[Likely] — en.wikipedia.org/wiki/Zenith_Electronics, zenith.com/heritage