Advanced-Connectek Inc. — E8:56:59 (MA-L)

Advanced-Connectek Inc. holds a single IEEE MA-L block, E8:56:59, registered at its Xindian District, New Taipei City headquarters. Unlike a bare shell registration, this OUI traces to a real, decades-old, publicly-traded manufacturer: the company trades on Taiwan's OTC market under stock code 5491, was founded in 1986, and operates as ACON, a maker of I/O connectors, cable assemblies, wireless antennas, batteries, and fiber-optic components for the 3C (computer, communication, consumer electronics) industry. Its product catalog, address, and identity are independently corroborated across its own corporate sites, a third-party connector-industry directory profile, and a major electronics distributor's supplier page — evidence well beyond the minimum registration record. What is not corroborated is which specific networked product carries this MAC prefix: ACON's public marketing skews toward passive connector and cable hardware rather than finished network-attached devices, and no forum, community OUI-lookup, or security-research source ties E8:56:59 to a named shipped product. That gap is recorded as an honest unknown rather than inferred.

IEEE assignment

E8:56:59 → Advanced-Connectek Inc. [Confirmed] — the IEEE MA-L registry (line 10735)

Registry / block size

MA-L (24-bit OUI); one block found for this organization in the local registry snapshot [Confirmed] — the IEEE MA-L registry (line 10735); short-name cross-reference "AdvancedConn" in the Wireshark manufacturer database (line 54604)

Registered address

No. 2, Alley 9, Lane 45, Baoxing Rd., Xindian (Xiadian) Dist., New Taipei City, TW 231 [Confirmed] — the IEEE MA-L registry (line 10735)

the IEEE MA-M registry / the IEEE MA-S registry cross-check

no matching MA-M or MA-S block found for this organization [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Date registered

Unknown as an IEEE fact — IEEE's public the IEEE MA-L registry publishes no assignment/registration date for MA-L entries. A third-party site (maclookup.app) displays "Initial registration: 25 January 2016," but this is a database artifact, not an IEEE-published fact, and is not recorded as such here [Confirmed absence of IEEE date / third-party date noted separately] — https://maclookup.app/search/result?mac=E85659

Company identity / substance

SUBSTANTIAL — Advanced-Connectek Inc. trades as ACON, Taiwan OTC stock code 5491, founded 1986, HQ address matches the OUI registration; ISO 9001 / ISO 14001 / IATF 16949 / HDMI-Association certified [Confirmed] — https://www.acon.com/en, https://connectorsupplier.com/company-profile/connector-manufacturers/advanced-connectek-usa-inc/, https://www.cens.com/cens/html/en/supplier/supplier_home_2677.html, https://www.taiwantrade.com/company/advanced-connectek-inc-1842.html, https://www.digikey.com/en/supplier-centers/advanced-connectek-usa

Product line

I/O connectors (USB, HDMI, DisplayPort, D-Sub, IEEE1394, board-to-board), micro-coaxial cable assemblies, wireless antennas, batteries, and optical/fiber components [Confirmed] — https://www.acon.com/en, https://www.aconoptics.com

Device-type corroboration for this specific OUI

Unknown — no forum post, Wireshark/community OUI-lookup note, Shodan-style device report, or product datasheet found tying MAC prefix E8:56:59 to a specific shipped networked product; ACON's public catalog is predominantly passive connectors/cables/antennas rather than finished network-attached hardware

[Unknown] — no corroborating source found

Multiple OUI assignments

Likely single block — only E8:56:59 found for "Advanced-Connectek Inc." in the local IEEE-derived registry snapshot; a live re-crawl of current IEEE MA-L/MA-M/MA-S data for name variants (e.g. "ACON", "Advanced Connectek USA") was not performed this cycle [Likely] — the IEEE MA-L registry

Security context

Unknown — no CVEs, malware/botnet family reports, or security advisories referencing MAC prefix E8:56:59 or "Advanced-Connectek" were found [Unknown] — no corroborating source found

Company status

active [Confirmed] — https://www.acon.com/en, https://www.acon-us.com/