ASIX Electronics Corporation — 7 prefixes (MA-L)

ASIX Electronics Corporation is a fabless IC design house founded in May 1995 and based in Hsinchu Science Park, Taiwan (Taipei Exchange ticker 3169). It designs industrial and embedded networking silicon — USB-to-Ethernet bridge controllers, USB-to-serial converters, and embedded Ethernet MAC/PHY controllers — rather than finished consumer devices. In practice, a globally-administered MAC address bearing an ASIX OUI almost never belongs to a device ASIX sells directly; it belongs to a USB-to-RJ45 Ethernet dongle or adapter built around an ASIX chip and sold under a third-party accessory brand (UGREEN, Plugable, Anker-class OEMs, and many unbranded imports). The workhorse parts are the AX88772 family (USB 2.0 to Fast Ethernet) and the AX88179/AX88178A family (USB 3.0 to Gigabit), with the newer AX88279A pushing USB to 2.5G. These adapters turn up on laptops, Chromebooks, thin clients, single-board computers, and game consoles that lack a built-in NIC. The consolidated entry covers seven MA-L blocks registered to the company: 00:0E:C6 (registered under the legacy legal-suffix form "ASIX ELECTRONICS CORP.") plus 9C:69:D3, CC:47:92, 20:7B:D2, F8:E4:3B, C8:A3:62, and B8:9D:E5 (registered under "ASIX Electronics Corporation"). One security note worth flagging for asset/IR context: the Linux kernel's ax88179_178a USB-Ethernet driver — not ASIX silicon or firmware — carries CVE-2022-2964 (out-of-bounds read/write, CVSS 7.8, patched upstream). It is a "malicious/spoofed USB device plugged into the host" class of bug requiring local physical access, not a remote network vector, and ordinary use of a legitimate ASIX-chipset adapter on a patched kernel carries no elevated risk.

IEEE assignment

7 MA-L prefixes → ASIX Electronics Corporation, registered Hsinchu, TW [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI); 7 IEEE prefixes. No MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) blocks found under any ASIX spelling [Confirmed] — IEEE MA-L / MA-M / MA-S CSVs. 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 is a database artifact, not an IEEE fact.

HQ / country

4F, No. 8, Hsin Ann Road, Hsinchu Science Park, Hsinchu 30078, Taiwan (registry address; 00:0E:C6 carries the older short-form "Hsinchu 300") [Confirmed] — IEEE MA-L

Company status

active; fabless IC design, founded May 1995; Taipei Exchange (TWO) ticker 3169 [Confirmed] — asix.com.tw, en.wikipedia.org/wiki/ASIX

Device types

USB-to-Ethernet adapter/dongle silicon (third-party-branded), USB-to-serial converters, embedded Ethernet MAC/PHY controllers [Confirmed] — asix.com.tw/en/product/USBEthernet

Notable products

AX88772/AX88772B/AX88772D (USB 2.0→Fast Ethernet), AX88179/AX88179A/AX88178A (USB→Gigabit), AX88279A (USB→2.5G) [Confirmed] — asix.com.tw/en/product/USBEthernet

Verified sample prefixes (all MA-L)

00:0E:C6, 9C:69:D3, CC:47:92, 20:7B:D2, F8:E4:3B, C8:A3:62, B8:9D:E5 [Confirmed] — IEEE MA-L; 00:0E:C6 and 9C:69:D3 also corroborated on maclookup.app / macverify.com

Naming note

00:0E:C6 registered as "ASIX ELECTRONICS CORP." (all-caps, trailing period, older short address); the six later blocks as "ASIX Electronics Corporation" — same entity, normal IEEE registry drift across registration dates, not a separate organization [Likely] — IEEE MA-L (row comparison)

Security context

CVE-2022-2964 (CVSS v3.1 7.8, High) — out-of-bounds read/possible OOB write in the Linux kernel ax88179_178a USB-Ethernet driver (net/usb/ax88179_178a.c), discovered by Jann Horn; related fix CVE-2022-48805. Both are host-OS driver bugs, NOT ASIX silicon/firmware flaws; threat model is a malicious/spoofed USB device requiring local physical access (DoS/possible code execution), patched upstream and shipped in downstream kernels (Ubuntu, SUSE, Oracle UEK, Amazon Linux). No ASIX-published CVEs and no supply-chain/firmware-implant evidence found.

[Confirmed] — nvd.nist.gov/vuln/detail/CVE-2022-2964, ubuntu.com/security/CVE-2022-2964

Analyst note

An ASIX OUI on a globally-administered address almost always identifies a third-party USB-to-Ethernet adapter (ASIX is fabless and does not ship finished consumer devices), so it labels the network interface, not the host device's brand — useful for classifying "external USB NIC" but not for identifying the machine's OEM.