Shenzhen Cudy Technology Co., Ltd. — 4 prefixes (MA-L / MA-M)

Shenzhen Cudy Technology Co., Ltd. holds four separate IEEE MAC-assignment blocks split across two registry classes: two 24-bit MA-L prefixes (80:AF:CA and D4:0D:AB) and two smaller 28-bit MA-M blocks (F4:A4:54:8/28 and B4:4B:D6:2/28). The MA-L and MA-M records point to two distinct registered addresses — a Baoan-district facility (Gaoxinqi Industrial Park) for 80:AF:CA and both MA-M blocks, and a separate Nanshan-district address (West Tower, Lepu Building) for D4:0D:AB — consistent with a company that expanded or re-registered its manufacturing footprint over time rather than a single-site shell filer. Independent corroboration comes from FCC equipment-authorization records under grantee code 2APRG covering named Wi-Fi 6/7 router and mesh models (RT01, RT02, WR3000H, WR1000V1), an active branded product catalog at cudy.com spanning routers, mesh systems, 4G/5G CPE, and PoE gear, and a public LinkedIn corporate presence. The vendor also carries a real, multi-year CVE history — command injection, hardcoded/shadow-password, and XSS findings spanning 2021-2026 — and maintains a public vulnerability-disclosure page, the kind of operational trail a bare shell registrant does not accumulate. Together, the multi-prefix registry footprint across two site addresses and the FCC/product/security corroboration clear the abstention bar for a substantive, non-shell vendor entry.

Company / org name

Shenzhen Cudy Technology Co., Ltd. [Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-M registry

Registry assignments

80:AF:CA (MA-L), D4:0D:AB (MA-L), F4:A4:54:8/28 (MA-M), B4:4B:D6:2/28 (MA-M) — 4 prefixes total, no MA-S match found [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (no match)

Registered addresses

80:AF:CA + both MA-M blocks → Room A606, Gaoxinqi Industrial Park, Baoan 67 District, Shenzhen, CN 518101; D4:0D:AB → 7th Floor, West Tower, Lepu Building, Nanshan, Shenzhen, Guangdong, CN 518055 [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry

Cross-check

Wireshark the Wireshark manufacturer database DB corroborates all 4 prefixes under "CudyTechnolo" [Confirmed] — the Wireshark manufacturer database, the Wireshark manufacturer database, the Wireshark manufacturer database, the Wireshark manufacturer database

Registration dates

Unknown — IEEE's the IEEE MA-L registry/mam.csv publish no assignment-date field for any of the 4 prefixes; not fabricated [Confirmed absence] — the IEEE MA-L registry, the IEEE MA-M registry

IANA reference

blank / not applicable — no IANA-reference field exists for OUI/MA-M registry entries [Confirmed]

Company identity / substance

identifiable, active hardware maker with a branded product site, FCC equipment filings, and LinkedIn presence — not a bare single-OUI shell [Confirmed] — https://www.cudy.com/en-us, https://fccid.io/2APRGRT01, https://www.linkedin.com/company/cudytech/

Device types

Wi-Fi 6/7 routers, mesh systems, access points, 4G/5G CPE routers, PoE switches/injectors [Confirmed] — https://fccid.io/2APRGRT01, https://fccid.io/2APRGWR3000H, https://device.report/shenzhen-cudy-technology

Third-party prefix aggregation (maclookup.app)

lists the same 4 prefixes; per-prefix "dates" shown there are database-scrape artifacts, not IEEE facts, and are excluded from the JSON record [Likely — single-source aggregation, not independently re-derived in this pass] — https://maclookup.app/vendors/shenzhen-cudy-technology-co-ltd

Security context

multiple CVEs 2021-2026 (command injection, hardcoded/shadow password, XSS) against Cudy consumer routers; vendor runs a public vulnerability-disclosure page [Confirmed] — https://www.sentinelone.com/vulnerability-database/cve-2026-4537/, https://vuldb.com/vuln/321761, https://www.cudy.com/en-us/pages/report-vulnerability