Beijing Yunyi Times Technology Co., Ltd — 3 prefixes (MA-L)

Beijing Yunyi Times Technology Co., Ltd is a Beijing-based hardware registrant that holds three separate IEEE MA-L (24-bit OUI) assignments — 14:19:73, 90:83:4B, and F4:1C:95 — each registered to a name variant of the same organization at a different Beijing address (Changping, Daxing/BDA, and Haidian districts). Holding three distinct blocks acquired over time is a mild signal of a real, operating manufacturer rather than a one-off shell registrant, and the company is independently listed as a registered business entity in a third-party Chinese business-verification directory. That said, this is a thin profile: no company website, product line, device category, or FCC filing could be tied to the name or any of the three prefixes, so the specific hardware these OUIs ship on remains unidentified. Each MA-L block spans roughly 16.7 million addresses. Note that IEEE publishes no assignment date for OUI records, so no registration date is asserted for any of the three prefixes.

IEEE assignment

3 prefixes → Beijing Yunyi Times Technology Co., Ltd (name capitalization varies by record) [Confirmed] — IEEE MA-L

Registry / block size

MA-L (24-bit OUI) for all three; no MA-M or MA-S records found for this org [Confirmed] — IEEE MA-L; corroborated by /mac/vendor/beijing-yunyi-times-technology/

Verified prefixes (all MA-L)

14:19:73, 90:83:4B, F4:1C:95 [Confirmed] — IEEE MA-L; https://networklookup.com/mac/vendor/beijing-yunyi-times-technology/

Registered address (14

19:73): Room 4046, Building 1, Yard 10, Beiqijia Hongfu, Changping District, Beijing 102209, CN [Confirmed] — IEEE MA-L

Registered address (90

83:4B): 1-411 Room, 19# Building, No.26 Xihuan South Rd., BDA Daxing District, Beijing 100176, CN [Confirmed] — IEEE MA-L

Registered address (F4

1C:95): Room 2005, 2F, Building B, No.1 Kaituo Road, Shangdi Information Industry Base, Haidian District, Beijing 100085, CN [Confirmed] — IEEE MA-L

Country

China (CN) [Confirmed] — IEEE MA-L

Company status

registered business entity in Beijing; listed in a third-party Chinese business-verification directory [Likely] — https://www.cnverify.com/company/Beijing-Yunyi-Times-Technology-Co-Ltd (single-source directory listing; full business scope not retrieved)

Device types

Unknown — no vendor website, FCC filing, teardown, or product documentation ties the name or any of the three prefixes to a device category [Unknown] — web research pass returned no product/device corroboration

Security context

Unknown — no CVEs, malware/botnet writeups, or security research reference this vendor or its prefixes [Unknown] — web research pass found none

No IEEE date

IEEE public OUI data (Registry, Assignment, Organization Name, Organization Address only) publishes NO assignment/registration date; any "date registered" on third-party lookup tools is a database artifact, not an IEEE fact [Confirmed] — IEEE the IEEE MA-L registry schema

Analyst note

three MA-L blocks + an independent business-registry listing make this identifiable-but-thin — a real registrant, but the hardware behind the OUIs is not discoverable in open sources.