Unisyue Technologies Co; LTD — 3 prefixes (MA-L)

A MAC address beginning with 9C:93:5C, 34:A2:7D, or 4C:5E:D3 belongs to Unisyue Technologies Co; LTD, a Beijing-based enterprise networking and network-security vendor, and typically appears on business switches, routers, or intrusion-detection/prevention appliances rather than consumer hardware.

The IEEE registry records three dedicated MA-L (/24) assignments for this registrant — not sub-allocations of a shared IEEE-administered base — all sharing the same Haidian District, Beijing address, though the registrant name is spelled inconsistently across rows ("Unisyue Technologies Co;LTD" vs "Unisyue Technologies Co; LTD.").

Search-snippet corroboration (direct fetches to unisyue.com failed on a TLS certificate-verification error) identifies the registrant as 紫光恒越 (Unisyue Technology), reportedly founded 2012 and headquartered in Beijing's Zhongguancun/Haidian district, and described in company material as a core IT-application-innovation subsidiary of Unisplendour / Tsinghua Unigroup. Treat the parent-group and founding-year detail as corroborated but not primary-source verified.

Product-catalog references (also search-snippet only) point to switch, router, and security-appliance lines — including IPS/IDS and a vulnerability scanner — marketed to government, finance, telecom, and education customers in China. A UL Solutions certification (file E526202) for ICT equipment further corroborates a real manufacturing entity behind these OUI blocks, though the certificate page itself returned HTTP 403 on direct fetch.

No CVE is recorded in the NVD for the keyword "Unisyue" as of an August 2026 search, and the vendor's own historical security bulletin states its products were not affected by the 2014 OpenSSL Heartbleed vulnerability — a sourced negative finding, not proof no vulnerability exists.

IEEE assignment

3 prefixes → Unisyue Technologies Co; LTD, registered Haidian District, Beijing, CN [Confirmed] — the IEEE MA-L registry 9C935C, 34A27D, 4C5ED3 — IEEE MA-L

Registry / block size

MA-L (24-bit OUI) × 3 dedicated assignments; not sub-allocations of a shared IEEE base [Confirmed] — the IEEE MA-L registry 9C935C, 34A27D, 4C5ED3

HQ / country

Room 402, No. 2 Building, NO.1 ZhongGuancun East Rd, Haidian District, Beijing, CN 100190 [Confirmed] — the IEEE MA-L registry 9C935C

Company status

likely active — corporate web presence with product catalog and a current UL certification listing found via search, but direct fetch of unisyue.com failed (TLS certificate error) so this is not primary-source confirmed [Likely] — maigoo.com; productiq.ulprospector.com (search snippet)

Device types

enterprise switches, routers, IPS/IDS appliances, vulnerability scanner [Likely] — maigoo.com; unisyue.com product-catalog URLs (search snippets, direct fetch failed)

Notable products

UNIS S10600X / S8600X-03 / S7800 / S6600X-EI switch series; R9900 / R3900-G / R5900 routers; T1000/T5000 IPS/IDS; XSCAN vulnerability scanner (product line names, not tied to any specific OUI) [Likely] — maigoo.com; unisyue.com product-catalog URLs (search snippets)

Verified sample prefixes (all MA-L, Unisyue Technologies Co; LTD)

9C:93:5C, 34:A2:7D, 4C:5E:D3 [Confirmed] — the IEEE MA-L registry 9C935C, 34A27D, 4C5ED3

Special note

maclookup.app (third-party aggregator) lists per-prefix "registered" dates spanning Dec 2022–Dec 2025 for these blocks; IEEE publishes no OUI assignment dates, so these are database artifacts and are not recorded as facts here. No MAC-to-specific-model mapping was found for any of the three prefixes.

[Confirmed] — maclookup.app/vendors/unisyue-technologies-co-ltd

Related vendors

reportedly Unisplendour (紫光股份) / Tsinghua Unigroup (紫光集团), described as parent group in company material [Likely] — unisyue.com About Us pages (search snippets, direct fetch failed)

Security note

no CVE recorded in the NVD for keyword "Unisyue" as of an August 2026 search; vendor bulletin states its products were unaffected by CVE-2014-0160 (Heartbleed) [Confirmed for the negative NVD search result] — services.nvd.nist.gov CVE API keywordSearch=Unisyue; unisyue.com Service_Support bulletin (search snippet)

Analyst note

A MAC beginning with any of Unisyue's three dedicated OUI blocks (9C:93:5C, 34:A2:7D, 4C:5E:D3) indicates genuine Unisyue-registered hardware — these are direct IEEE MA-L assignments to the company, not sub-allocations of a shared IEEE base. Beyond "Unisyue enterprise networking/security hardware," the specific device model cannot be determined from OUI alone.