Microlink Communications Inc. — 2 prefixes (MA-L)

A MAC address starting with 00:0C:55 or 00:19:1F belongs to Microlink Communications Inc., a Taiwan-based hardware maker, and is most plausibly seen on Bluetooth or Wi-Fi network-interface modules rather than a single consumer product line.

The IEEE registry carries two MA-L (/24) assignment keys — 000C55 and 00191F — under the identical registrant name and registered address (8F, 31 Hsintai Road, Hsinchu, Taiwan 302). Two independently-registered blocks under one identical name/address is meaningfully more substance than a bare single-OUI registration.

Independent corroboration comes from the FCC: a Taiwan-based "Microlink Communications Inc." holds FCC grantee code ZUJ, with equipment-authorization filings for an HP-branded portable Bluetooth speaker, a tablet, and a PCI Express Mini Card (a likely WLAN/Bluetooth combo module) filed 2011-2012. These device types fit a company that would also hold MAC-address blocks for network interfaces.

One discrepancy keeps this at Likely rather than Confirmed: the FCC filing address (Tucheng City) differs from the OUI registry address (Hsinchu). Same legal name and same country, but single-entity identity across the two addresses was not conclusively proven — it could be a HQ-versus-facility split, an address change over time, or a distinct same-named entity.

Two other organizations share the "Microlink" name but are unrelated to this vendor and hold separate registry keys: Microlink Corporation (Los Angeles, US) and OOO Microlink-Svyaz (Moscow, Russia). No CVE is recorded in the NVD, and no botnet or malware association was found for this vendor name or these prefixes, as of an August 2026 search.

Vendor

Microlink Communications Inc. (Taiwan)

Device class

Bluetooth/Wi-Fi network-interface hardware (speaker, tablet, and mini-card OEM/ODM work)

FCC grantee code

ZUJ (Taiwan filer, same company name; filing address differs from the OUI registry address)

Also seen on

HP-branded portable Bluetooth speaker (OEM), a tablet, and a PCI Express Mini Card, per FCC ID filings under grantee code ZUJ

Not this vendor

Microlink Corporation (Los Angeles, US, key 0001A4) and OOO Microlink-Svyaz (Moscow, Russia, keys 3009F93 and 70B3D5129) are unrelated same-named entities

IEEE assignment

00:0C:55, 00:19:1F → Microlink Communications Inc., registered Hsinchu, Taiwan TW 302 [Confirmed] — the IEEE MA-L registry 000C55, the IEEE MA-L registry 00191F

Registry / block size

MA-L (24-bit OUI); 2 IEEE prefixes found under this registrant [Confirmed] — the IEEE MA-L registry

HQ / country

8F, 31 Hsintai Road, Hsinchu, Taiwan TW 302 (registry address) [Confirmed] — the IEEE MA-L registry 000C55

Company status

Unknown — no independent corporate website was located [Unknown] — search performed, no site found

Device types

Bluetooth speaker (OEM), tablet, PCI Express Mini Card (likely WLAN/Bluetooth combo module) [Likely] — https://fccid.io/ZUJ

Notable products

HP Portable Bluetooth Speaker, OEM manufacture, FCC ID ZUJ-MBT2111 [Likely] — https://fccid.io/ZUJ

Verified sample prefixes

00:0C:55, 00:19:1F [Confirmed] — the IEEE MA-L registry

FCC grantee code

ZUJ, address No. 49, Sec. 4, Jhongyang Rd., Tucheng City, 236, Taiwan; filings ZUJ-MBT2111, ZUJ-MTP1122, ZUJ-MTP1121 [Likely] — https://fccid.io/ZUJ (filing address differs from the OUI registry address; single-entity link not conclusively proven)

Registration date

Unknown — IEEE's public OUI data publishes no assignment/registration date field; third-party dates shown by lookup tools are database artifacts, not IEEE facts [Confirmed] — the IEEE MA-L registry

Security/CVE

No CVE recorded in the NVD, and no botnet/malware association found for this vendor name or for 00:0C:55 / 00:19:1F, as of an August 2026 search [Likely] — negative finding; coverage of small ODM vendors in public vulnerability databases is generally sparse

Related vendors

Microlink Corporation (Los Angeles, US, unrelated entity, key 0001A4); OOO Microlink-Svyaz (Moscow, Russia, unrelated entity, keys 3009F93 and 70B3D5129) [Confirmed] — the IEEE MA-L registry

Analyst note

two MA-L blocks under an identical registrant name/address plus independently-sourced FCC filings for Bluetooth/tablet/wireless-card hardware support treating this as a multi-prefix vendor with verifiable substance rather than a bare single-OUI shell; the FCC filing address does not exactly match the OUI registry address, so single-entity certainty is Likely rather than Confirmed

[Likely] — https://fccid.io/ZUJ, the IEEE MA-L registry