Ruijie Networks holds 32 MA-L blocks registered as "Ruijie Networks Co.,LTD" out of Fuzhou, Fujian, China — the registry rows carry several legacy address variants (Building 19, Juyuanzhou Industrial Park, No.618 Jinshan Avenue, Cangshan District; and earlier "Star-net Science Plaza" / "xingwangruijie haixi hi-tech industrial park" forms), reflecting Ruijie's roots in the Star-net (Beijing Star-Net Ruijie) group. Verified samples include F0:74:8D, E0:5D:54, 70:85:6C, 8C:DD:30, C4:70:AB, and 78:EC:B5. A 33rd early block, 00:11:AD, is registered separately to "Shanghai Ruijie Technology" at a Shanghai address — a distinct legacy registrant that the consolidated entry should treat as related, not as the main Fuzhou entity. These OUIs ship on enterprise and SMB gear: Layer 2/3 campus and data-center switches, Wi-Fi 6/6E/7 access points (indoor, wall/ceiling-mount, and ruggedized outdoor), cloud-managed routers, wireless controllers, and firewalls — with the SMB-focused Reyee sub-brand cloud-managed via the Ruijie Cloud platform. Ruijie is publicly listed (SZSE: 301165). A material triage signal sits in the cloud layer, not the hardware identity: in December 2024 Claroty's Team82 disclosed three critical Reyee-cloud CVEs (CVE-2024-47547, CVE-2024-48874, CVE-2024-52324, CVSS 9.4–9.8) plus an "Open Sesame" proximity attack against beacon-broadcasting APs, and in 2025 CVE-2025-56752 (CVSS 9.4) covered unauthenticated credential modification on Reyee RG-ES/RG-NIS switches — all vendor-patched (the 2024 cloud bugs server-side, no user action; the switch flaw via firmware). For triage, a Ruijie OUI in ARP/switch/DHCP tables is enterprise/campus or SMB infrastructure — a managed asset common in China/APAC, education, and hospitality networks — and the OUI maps to the Ruijie/Reyee brand. The IEEE registry publishes no assignment dates, so none is stated here; any "registered 2011"-style value on third-party MAC lookups is a database artifact, not an IEEE fact.
- IEEE assignment
- 32 prefixes → "Ruijie Networks Co.,LTD", registered Fuzhou, Fujian, China [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv, direct read: 32 canonical rows)
- Registry / block size
- MA-L only; 32 blocks under the canonical name (~537M addresses). No MA-M or MA-S/OUI-36 blocks for the canonical entity. [Confirmed] — IEEE oui.csv; third-party aggregators (Netify, macaddress.io) list 30–32, the variance a database-currency artifact [Likely] — https://www.netify.ai/resources/macs/brands/ruijie-networks
- HQ / country
- Building 19, Juyuanzhou Industrial Park, No.618 Jinshan Avenue, Cangshan District, Fuzhou 350000, China (registry address; multiple legacy variants present) [Confirmed] — IEEE oui.csv; R&D/main operations in Fuzhou, additional R&D in Beijing [Confirmed] — https://www.ruijie.com/en-global/
- Company status
- active; publicly listed on the Shenzhen Stock Exchange (SZSE: 301165). Founding year varies by source (2000 vs 2003 cited); rooted in the Star-net / Beijing Star-Net Ruijie group. [Likely on founding year] — https://baike.baidu.com/en/item/Ruijie%20Networks/656344 , https://dcf.fm/blogs/history/301165sz-history-mission-ownership
- Device types
- campus/enterprise + data-center switches, Wi-Fi 6/6E/7 APs (indoor + ruggedized outdoor), cloud-managed routers, wireless controllers, firewalls; SMB sub-brand Reyee (Ruijie Cloud–managed) [Confirmed] — https://www.ruijie.com/en-global/products/ , https://reyee.ruijie.com/en-global/
- Notable products
- Ruijie campus/DC switches, RG-series switches (incl. Reyee RG-ES/RG-NIS), Wi-Fi 6/7 access points, cloud-managed routers, Reyee SMB line / Ruijie Cloud
- Verified prefix sample
- F0:74:8D, E0:5D:54, 70:85:6C, 8C:DD:30, C4:70:AB, 78:EC:B5 [Confirmed] — IEEE oui.csv
- Related registrant
- 00:11:AD → "Shanghai Ruijie Technology" (Shanghai, CN 200041) — a distinct early registrant separate from the Fuzhou "Ruijie Networks Co.,LTD" entity; treat as related history, not the main entity. [Confirmed] — IEEE oui.csv (line 28847)
- Security context
- Dec 2024 Claroty Team82 disclosed three critical Reyee-cloud CVEs — CVE-2024-47547 (CVSS 9.4, weak password recovery), CVE-2024-48874 (CVSS 9.8, SSRF), CVE-2024-52324 (CVSS 9.8, arbitrary command execution) — plus the "Open Sesame" beacon proximity attack (~50,000 cloud-connected devices); all patched server-side, no user action. CVE-2025-56752 (CVSS 9.4) — unauthenticated remote credential modification on Reyee RG-ES/RG-NIS switches — patched via firmware (ESW_1.0(1)B1P48+). All in the cloud/managed-switch layer, NOT the OUI/hardware identity. [Confirmed] — https://thehackernews.com/2024/12/ruijie-networks-cloud-platform-flaws.html , https://www.securityweek.com/critical-vulnerabilities-found-in-ruijie-reyee-cloud-management-platform/ , https://securityonline.info/cve-2025-56752-remote-attackers-can-gain-full-administrative-access-to-affected-ruijie-networks-devices-without-authentication/
- Special note
- OUI maps to the Ruijie/Reyee brand. The IEEE registry publishes no assignment dates, so none is stated here; a "registered 2011" value on third-party MAC tools is a database artifact, not an IEEE fact. [Confirmed]
- Registration date
- Unknown — IEEE publishes none and none is present in the registry CSV; do not invent one. [Unknown] — IEEE oui.csv (no date column)
- IANA reference
- Unknown / not applicable to an OUI entry; column stays blank. [Unknown]
- Related vendors
- Reyee (Ruijie SMB sub-brand), Shanghai Ruijie Technology (distinct early registrant), Star-net / Beijing Star-Net Ruijie (corporate lineage)
- Analyst note
- A Ruijie OUI in ARP/switch/DHCP tables is enterprise/campus or SMB infrastructure — a managed asset common in China/APAC, education, and hospitality networks; the OUI maps to the Ruijie/Reyee brand. Recent critical CVEs sit in the Reyee cloud-management and managed-switch firmware layers (all vendor-patched), not in the hardware identity, so OUI alone is an asset/triage signal, not a vulnerability verdict.