Wistron InfoComm (Chongqing) Co., Ltd. — 3 prefixes (MA-L)

Wistron InfoComm (Chongqing) Co., Ltd. is a mainland-China ODM manufacturing subsidiary in the Wistron Corporation group — the Taiwan-listed Fortune Global 500 original-design manufacturer that builds notebooks, desktops, servers, and other hardware under contract for global brands. The Chongqing entity operates from Yubei District in Chongqing and holds three IEEE MA-L (24-bit OUI) blocks: 84:BA:59, 80:CA:52, and 48:98:AB. Trade and supplier records identify its confirmed primary output as notebook computers, with HP Inc. the dominant customer by export-shipment volume and Acer a secondary customer — meaning end devices carrying these prefixes typically ship under HP or Acer branding, not a Wistron-branded product. That contract-manufacturer relationship is the key interpretation caveat for this OUI: a Wistron Chongqing prefix identifies who built the board, not whose name is on the box, so the device's security posture and firmware lineage track the selling brand (HP, Acer) rather than a distinct Wistron threat surface. No CVEs, firmware advisories, or supply-chain-compromise incidents specific to this facility were found. A second data-quality caveat: a separate IEEE registrant named "Wistron (ChongQing)" holds OUI 30:65:EC at a different Chongqing address (Konggang Functional Zone) — do not merge it into this vendor without confirming the two are the same legal entity. As with every OUI, IEEE publishes no registration dates; aggregator "date registered" values are database artifacts.

IEEE assignment

3 prefixes → Wistron InfoComm(Chongqing)Co.,Ltd., registered Yubei District, Chongqing, CN [Confirmed] — IEEE MA-L (lines 14627, 30848, 39371)

Registry / block size

MA-L (24-bit OUI); 3 IEEE prefixes (~16.7M addresses each, 2^24) [Confirmed] — IEEE MA-L. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the IEEE MA-L registry columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools (maclookup.app shows 2023-12-12 / 2024-12-24 / 2026-04-21) is a database artifact, not an IEEE fact.

Verified prefixes (all MA-L, this org)

84:BA:59, 80:CA:52, 48:98:AB [Confirmed] — IEEE MA-L / maclookup.app

HQ / country

No.18-9 Baohong Avenue, Wangjia Street, Yubei District, Chongqing, CN 401120 (registry address) [Confirmed] — IEEE MA-L. Trade records also cite a Lianglu-Cuntan Free Trade Port Area, Yubei District address [Likely] — panjiva.com / dnb.com (possibly a second registered/operational address)

Parent company

Wistron Corporation (Taiwan; Fortune Global 500 ODM); the Chongqing entity is one of several Wistron China sites (others include Kunshan, Zhongshan, Chengdu) [Confirmed] — en.wikipedia.org/wiki/Wistron, wistron.com

Company status

active (operating ODM facility) [Confirmed] — dnb.com, panjiva.com

Device types

notebook computers (primary by shipment volume), desktop computers, general IT/computer peripheral equipment [Confirmed] — matchory.com, panjiva.com. Corroboration for this site producing servers/displays/networking gear specifically was NOT found — those are other Wistron group factories

[Unknown] — no source in this pass

Primary customers

HP Inc. (dominant by verified export-shipment count); secondary Acer America and Wistron InfoComm Technology (America) [Confirmed] — panjiva.com, matchory.com

Security note

no CVEs, firmware vulnerabilities, or security advisories specific to Wistron InfoComm Chongqing found; devices are contract-manufactured consumer/commercial endpoints (laptops under HP/Acer branding), not network infrastructure — inherited security posture is the selling brand's, not a distinct "Wistron network device" surface

[Confirmed — null finding] — en.wikipedia.org/wiki/Wistron, esg.wistron.com

Related vendors

"Wistron (ChongQing)" (separate IEEE registrant, OUI 30:65:EC, different Chongqing address — do NOT merge without confirming same legal entity) [Confirmed] — IEEE MA-L

Website

https://www.wistron.com/en (parent; no dedicated public site for the Chongqing subsidiary found) [Confirmed] — wistron.com

Analyst note

a Wistron Chongqing OUI identifies the contract manufacturer of the hardware, not the retail brand — most such devices ship as HP or Acer products. Treat the OUI as a manufacturing-origin signal, not a vendor-of-record for support or firmware.