YSTen Technology Co., Ltd. — 6 prefixes (5× MA-L, 1× MA-M)

A MAC address beginning with one of YSTen Technology's six registered prefixes — ACBB61, 58B42D, 7868F7, 0CC655, 904992, or the 80:77:86:8x MA-M block — belongs to YSTen Technology Co., Ltd., a Beijing-headquartered manufacturer of Android-based set-top boxes, TV dongles, conference cameras, and CCTV/IP cameras.

YSTen holds five MA-L (24-bit) OUI blocks plus one MA-M (28-bit) block. One MA-L block (0CC655) is registered under the name Wuxi YSTen Technology Co.,Ltd.; the remaining four MA-L blocks and the MA-M block use YSTen Technology Co.,Ltd. All six share a Chaoyang District, Beijing registered address, with a secondary office in Wuxi, Jiangsu — consistent registration detail across multiple filings, not a bare one-off registration.

Company-profile sources describe YSTen as founded in 2008, with roughly 900 employees across 22 branches, and say it became a subsidiary of the Shenzhen-listed LongShine Technology Group (stock code 300682) via a June 2019 acquisition. Its published product line — Android STB/TV-box models, TV dongles, conference and CCTV cameras, and remote controls — targets OTT-TV/IPTV delivery and export markets.

No CVEs or vulnerability disclosures specific to YSTen or LongShine devices were found in this pass. These are internet-connected Android STBs and IP cameras, a device class with generically elevated IoT/firmware risk, but no source-specific incident is asserted here.

IEEE assignments

5× MA-L (ACBB61, 58B42D, 7868F7, 0CC655, 904992) + 1× MA-M (8077868) → YSTen Technology Co.,Ltd. / Wuxi YSTen Technology Co.,Ltd. [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry

Registry / block sizes

MA-L (24-bit OUI, 5 blocks), MA-M (28-bit, 1 block) [Confirmed] — the IEEE MA-L registry lines 9757, 10189, 18269, 19665, 24395; the IEEE MA-M registry line 3827

HQ / registered address

Room 1715, 17/F North Star Times Tower, Chaoyang District, Beijing, CN 100101 (primary); alternate suite Room 1801, 18F same building; Wuxi office Room 101, Building D (Cygnus), Wuxi Software Park, No. 111 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu, CN 214028

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

Company status

active; subsidiary of Shenzhen-listed LongShine Technology Group (stock code 300682) since a June 2019 acquisition [Confirmed] — marketscreener.com, pitchbook.com

Founded / size

founded 2008; ~900 employees; 22 branches [Likely] — cbinsights.com, pitchbook.com (company-profile aggregators, not a first-party filing)

Device types

Android set-top box / TV box (e.g. H9-X3, H98 Mini), TV dongle (Mecool KD5), conference camera, CCTV/IP security camera, remote control [Confirmed] — ysten2021.en.made-in-china.com, cbinsights.com

Website

en.ysten.com [Likely] — cited by company-profile sources; not independently loaded in this research pass

Registration dates

Unknown — IEEE the IEEE MA-L registry/mam.csv publish no assignment/registration date field for MA-L or MA-M blocks; not fabricated [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry

Security context

Unknown / no findings — no CVEs or vulnerability disclosures specific to YSTen or parent LongShine devices located in this research pass [Unknown]

Analyst note

five MA-L blocks plus one MA-M block, two related legal-name registrants at consistent addresses, a documented parent-company acquisition, and an independently listed manufacturer product catalogue together clear the abstain-on-shells bar — this is not a bare single-OUI shell registration.