Wuhan Yangtze Optical Technology CO.,Ltd. — 2 prefixes (MA-L)

Wuhan Yangtze Optical Technology CO.,Ltd. (commonly abbreviated YOTC) holds two IEEE MA-L OUI blocks, 00:1A:69 and 90:28:F6, registered to two distinct street addresses in Wuhan's Hongshan district — Guanshan 2 Road and Youkeyuan Road — roughly two decades apart, consistent with a long-running manufacturer that re-registered or expanded its facility footprint over time rather than a single-shot shell filing. YOTC is a real access-network equipment maker founded in 2006 in Wuhan's East Lake High-tech Development Zone ("Optics Valley"), producing PON (GPON/XGPON/XPON) OLT and ONU/ONT hardware, EOC/C-DOCSIS gear, ODN/CDN components, and CATV amplifier/receiver equipment for telecom operators and ISPs, not consumer retail networking. An FCC equipment-authorization filing (grantee code 2BDFB, FCC ID 2BDFBM2-4150) for an "XPON ONU" model M2-4150 independently corroborates the company as an operating PON hardware manufacturer, and the address on the active corporate site (No. 88 Youkeyuan Road, Hongshan District, Wuhan) matches the 90:28:F6 registry row exactly. Caution for future work on this slug: at least three distinctly named "Yangtze Optical" companies operate out of the same Wuhan Optics Valley cluster — Yangtze Optical Fibre and Cable (YOFC), Yangtze Optical Electronic (YOEC), and this vendor, Yangtze Optical Technology (YOTC) — and they must not be conflated; both OUI registry rows and the FCC filing point specifically to "Wuhan Yangtze Optical Technology," matching YOTC only.

IEEE assignment

2 prefixes → "Wuhan Yangtze Optical Technology CO.,Ltd." [Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) only; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) assignment found for this exact org name [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

Registered addresses

00:1A:69 → 4#, Guanshan 2 Road, Wuhan, Hubei, CN 430073; 90:28:F6 → No.88, Youkeyuan Road, Hongshan District, Wuhan, Hubei, CN 430073 — same city/postal code, distinct street addresses, indicating two separate facility registrations over time

[Confirmed] — the IEEE MA-L registry, the IEEE MA-L registry

Cross-check

both prefixes corroborated in Wireshark's the Wireshark manufacturer database DB under short name "YangtzeOptic" [Confirmed] — the Wireshark manufacturer database, the Wireshark manufacturer database

Company identity / founding

YOTC, founded 2006, based in Wuhan's East Lake High-tech Development Zone ("Optics Valley") [Likely — single first-party source, not independently re-derived] — https://en.yotc.com.cn/

Device types

PON (GPON/XGPON/XPON) OLT and ONU/ONT units, EOC/C-DOCSIS gear, ODN/CDN components, CATV amplifiers/receivers, network management software; telecom-operator/ISP-side infrastructure hardware, not consumer retail gear [Confirmed — corroborated by an independent FCC filing] — https://en.yotc.com.cn/, https://fccid.io/2BDFBM2-4150

Product corroboration

FCC-authorized "XPON ONU" model M2-4150, grantee code 2BDFB, FCC ID 2BDFBM2-4150, matching the vendor's stated PON/ONU product line [Confirmed] — https://fccid.io/2BDFBM2-4150, https://device.report/wuhan-yangtze-optical-technologies/m2-4150

Company status

active [Likely — single first-party source] — https://en.yotc.com.cn/

Business-data listings

independently listed by Crunchbase, PitchBook, ZoomInfo, and Bloomberg, each showing a 2006 founding date, consistent with the corporate site [Likely — aggregator corroboration, not primary-source verified] — https://www.crunchbase.com/organization/wuhan-yangtze-optical-technologies-co, https://pitchbook.com/profiles/company/525585-43

Registration dates

Unknown per IEEE — the IEEE MA-L registry publishes no assignment-date field for either prefix; not fabricated as a placeholder. Third-party site maclookup.app separately shows "Registered on 2006-11-29" for 00:1A:69 and "Registered on 2024-05-15" for 90:28:F6, but these are third-party database-scrape artifacts, not IEEE facts, and are not recorded as registration dates here [Confirmed absence at IEEE; third-party dates noted but not adopted] — the IEEE MA-L registry, https://maclookup.app/vendors/wuhan-yangtze-optical-technology-co-ltd

IANA reference

not applicable — no IANA-reference field exists for IEEE MA-L (OUI/MAC) registrations; left blank rather than invented [Confirmed] — n/a

Security context

Unknown — no vendor-specific CVE, advisory, or known-exploited-vulnerability report found for YOTC, "Wuhan Yangtze Optical Technology," or its ONU/PON line in this pass. The widely-known GPON RCE/auth-bypass pair (CVE-2018-10561, CVE-2018-10562) belongs to a different vendor's firmware (Dasan Zhone / DASAN Networks) and must not be attributed to this vendor

[Unknown — sourced null, not fabricated] — https://nvd.nist.gov/vuln/detail/cve-2018-10561, https://nvd.nist.gov/vuln/detail/cve-2018-10562

Related-but-distinct vendors

Yangtze Optical Fibre and Cable (YOFC) and Yangtze Optical Electronic (YOEC) are separate companies from the same Wuhan Optics Valley cluster and must not be conflated with this entry [Confirmed] — https://fccid.io/2BDFBM2-4150, https://en.yotc.com.cn/