Shenzhen Furuilian Electronic Co.,Ltd. is an IEEE-registered Shenzhen electronics manufacturer holding two IEEE MAC address block assignments under a single registry address: one MA-L block (24-bit OUI 50:B3:B4, ~16M addresses) found in the project's cached oui.csv, and one MA-M block (28-bit prefix 44:6F:D8:1, ~1M addresses) found in mam.csv. Both assignments carry the identical Bao'an District address in the Shuitian Industrial Zone, Shenzhen. The vendor has effectively no public footprint: no company website surfaced in web search, B2B marketplaces (Alibaba, Made-in-China), or the FCC equipment-authorization database, and no CVE, security advisory, or threat-intelligence record mentions the company or either prefix. The mix of one MA-L and one MA-M block suggests a mid-scale manufacturer, but the specific product category — IoT, CCTV, networking, or consumer electronics — cannot be determined from available sources and is recorded as Unknown rather than guessed. No allocation date is recorded: IEEE publishes no registration dates for OUI/MAC prefix assignments, and the "23 November 2021" / "24 November 2020" dates shown by third-party lookup services (maclookup.app) are database artifacts of those scrapers, not IEEE-published facts, so they are deliberately not recorded as authoritative.
- IEEE assignment (MA-L)
- 50:B3:B4 → Shenzhen Furuilian Electronic Co.,Ltd. [Confirmed] — enrichment/registries/oui.csv line 714; cross-checked macvendorlookup.com/api/v1/50B3B4, hwaddress.com
- IEEE assignment (MA-M)
- 44:6F:D8:1 (28-bit, 44:6F:D8:10/28) → Shenzhen Furuilian Electronic Co.,Ltd. [Confirmed] — enrichment/registries/mam.csv line 4152; cross-checked macvendorlookup.com/api/v1/446FD810
- Registry / block sizes
- MA-L (24-bit OUI, ~16M addresses) + MA-M (28-bit, ~1M addresses) [Confirmed] — oui.csv, mam.csv. No MA-S (oui36) assignment exists in the cached registry [Confirmed] — enrichment/registries/oui36.csv
- HQ / country
- 3/F, No.5 Building Workshop, No.123, Shuitian Industrial Zone, Baoshi East Road, Shuitian Community, Shiyan Street, Bao'an District, Shenzhen CN 518000 [Confirmed] — oui.csv, mam.csv (identical address on both assignments); cross-checked macvendorlookup.com
- Country
- CN (China) [Confirmed] — oui.csv, mam.csv
- Allocation date
- Unknown — IEEE publishes no registration dates for OUI/MAC prefix assignments. Third-party "dates" (maclookup.app: 23 Nov 2021 for 50:B3:B4, 24 Nov 2020 for 44:6F:D8:10) are scraper database artifacts, NOT IEEE facts, and are not recorded as authoritative. [Unknown]
- Company website
- Unknown — no public vendor site found via web search, Alibaba, FCC ID database, or made-in-china.com [Unknown] — web research pass
- Device types / product category
- Unknown — no product listings, FCC filings, CVE records, or third-party device-type identifications found. The two-block footprint suggests a mid-to-large electronics manufacturer, but the specific category cannot be determined. Industrial-zone proximity does not indicate device type. [Unknown] — web research pass
- FCC filings
- None found via fccid.io search or FCC web search; may indicate primarily non-US market sales or OEM/ODM arrangements where another grantee holds the FCC ID. [Likely] — fccid.io
- Security context
- Unknown — no CVEs, advisories, vulnerability disclosures, or threat-intel mentions for the company or either prefix (50:B3:B4, 44:6F:D8:10) in public web, GitHub, or security databases. [Unknown] — web research pass
- Analyst note
- A globally-administered 50:B3:B4 or 44:6F:D8:1x address identifies genuine Furuilian-registered hardware; but with device type, product line, and security posture all Unknown, the OUI is useful for vendor attribution only, not for inferring device class or risk.