Advantech Technology (CHINA) Co., Ltd. — 4 prefixes (MA-L)

A MAC address beginning with 00:0B:AB, C4:00:AD, CC:82:7F, or 28:87:AF belongs to Advantech Technology (CHINA) Co., Ltd., the Kunshan (Jiangsu, China) manufacturing subsidiary of Taiwan's Advantech Group, and typically shows up on industrial computers, embedded platforms, and industrial IoT/edge hardware.

This is a substantive, identifiable company rather than a bare single-OUI shell. It holds four separate IEEE MA-L blocks registered to the identical legal-entity string and address, and the entity is independently corroborated by a trade-press factory visit describing its Kunshan SMT/assembly lines, plus standalone Dun & Bradstreet and Bloomberg company profiles.

The Advantech corporate family holds several distinct IEEE registrant strings that must not be merged: this entry (China), the Taiwan parent ADVANTECH CO., LTD. (74:FE:48, 00:D0:C9), the unrelated-but-similarly-named Korean entity ADVANTECH TECHNOLOGIES CO.,LTD (00:14:53, already published DONE), Advantech Czech (C4:B1:6B), and Advantech AMT Inc. Canada (00:0E:02).

Advantech-brand product lines (chiefly WebAccess/SCADA and EKI industrial Ethernet devices) carry a long CISA ICS-CERT advisory history, but no advisory is attributable to this specific China-subsidiary OUI or its four prefixes by name — the advisories target the Advantech group's product lines generally.

IEEE's public MA-L data (the IEEE MA-L registry) publishes no assignment/registration date field. A third-party tool shows per-prefix "registration dates," but per project policy those are database artifacts, not IEEE facts, and are not published here as registration dates.

IEEE assignment

4 prefixes → Advantech Technology (CHINA) Co., Ltd., registered Kunshan, Jiangsu, CN [Confirmed] — the IEEE MA-L registry (IEEE MA-L)

Registry / block size

MA-L (24-bit OUI); 4 confirmed blocks, no MA-M/MA-S assignments found [Confirmed] — the IEEE MA-L registry

HQ / country

No.666, Han-Pu Rd., Yu-Shan, Kun-Shan, Jiang Su, CN 215316 (Kunshan, Jiangsu, China) [Confirmed] — IEEE the IEEE MA-L registry; corroborated by controlglobal.com, dnb.com

Company status

active — operating manufacturing facility described in a 2020s trade-press site visit [Confirmed] — controlglobal.com/home/blog/11354881/visiting-the-factory-advantech-in-kunshan

Device types

industrial computers, embedded systems, data-acquisition equipment, industrial IoT/edge devices, automation-control hardware [Likely] — controlglobal.com, baike.baidu.com

Verified prefixes (all MA-L, identical registrant/address)

00:0B:AB, C4:00:AD, CC:82:7F, 28:87:AF [Confirmed] — the IEEE MA-L registry

IEEE registration date

not published by IEEE; third-party "date registered" figures are database artifacts, not IEEE facts, and are not recorded as such here [Unknown] — standards.ieee.org/products-programs/regauth/

Security context

CISA ICS-CERT advisories exist against Advantech-brand WebAccess/SCADA and EKI product lines (e.g. ICSA-25-352-06, ICSA-21-217-04, ICSA-15-344-01B), but none is attributable specifically to this China-subsidiary OUI or its four prefixes [Likely] — cisa.gov/news-events/ics-advisories/icsa-25-352-06

Vendor website

no standalone site found for this exact legal entity; the group operates advantech.com, but that is the parent company's site, not confirmed as this subsidiary's own [Unknown] — none published

Related vendors

ADVANTECH CO., LTD. (Taiwan parent, 74:FE:48, 00:D0:C9); ADVANTECH TECHNOLOGIES CO.,LTD (Korea, 00:14:53, published DONE); Advantech Czech (C4:B1:6B); Advantech AMT Inc. Canada (00:0E:02) [Confirmed] — the IEEE MA-L registry, /mac/vendor/advantech-technologies/

Analyst note

A matching globally-administered MAC identifies genuine Advantech-family hardware manufactured by this China subsidiary, but OUI alone doesn't distinguish it from sibling Advantech entities and is trivially spoofable; don't rely on it for access control.