Shenzhen Transchan Technology Limited — 4 prefixes (MA-L)

A MAC address beginning with DC:DE:4B, F8:3C:44, 30:C8:A2, or 04:5E:0A belongs to Shenzhen Transchan Technology Limited, a China-registered IEEE OUI holder whose associated FCC device filings are all mobile-phone/smartphone models.

The IEEE OUI Registry confirms four separate MA-L blocks under this exact organization name, all registered to the same Shenzhen, Nanshan District address. IEEE's public the IEEE MA-L registry publishes no assignment date for these blocks — any "date registered" shown by third-party lookup tools is a database artifact, not an IEEE fact.

Beyond the bare registry entry, FCC equipment-authorization filings under this grantee name (2022–2023) cover a run of phone models — TR251, P662LS/LO, M5615, M2173N, M9010, A631LS/LO, S661LO/LS/N, A512WS — which is what makes this entry more than a single-OUI shell. One filing's responsible-party contact uses an @transsion.com email address, and a USPTO TRANSSION trademark record (Reg. No. 5730609) reportedly lists this entity as registrant, pointing toward a relationship with Transsion Holdings, the public parent of TECNO, Infinix, and itel — but the exact corporate relationship (subsidiary, affiliated filer, or prior name) is not documented in any source checked, so it is tagged Likely rather than Confirmed.

At the brand-ecosystem level, Transsion-linked handsets have a documented security history: a 2020 Secure-D/Upstream report found Triada/xHelper malware preinstalled on roughly 53,000 Tecno W2 units, and a 2021 Privacy International test of a Tecno Y2 found an outdated Android build with hundreds of known CVEs plus proprietary tracking frameworks. Neither finding is proven against the Transchan legal entity or these specific OUI blocks — it is background context, not a claim about this vendor's own devices.

IEEE assignment

4 prefixes → SHENZHEN TRANSCHAN TECHNOLOGY LIMITED, registered Shenzhen, Nanshan District, China [Confirmed] — IEEE OUI Registry (the IEEE MA-L registry)

Registry / block size

MA-L (24-bit OUI) x4 — DC:DE:4B, F8:3C:44, 30:C8:A2, 04:5E:0A (~16.7M addresses each) [Confirmed] — IEEE the IEEE MA-L registry; maclookup.app

HQ / country

Room 03, 23/F, Unit B Building, No 9, Shenzhen Bay Eco-Technology Park, Yuehai Street, Nanshan District, Shenzhen, China 518000 [Confirmed] — IEEE the IEEE MA-L registry

Company status

active — FCC device filings through 2023 under this grantee name [Confirmed] — fcc.report

Device types

mobile phones / smartphones [Confirmed] — fcc.report, fccid.io

Notable products

TR251, P662LS, P662LO, M5615, M2173N, M9010, A631LS, A631LO, S661LO, S661LS, S661N, A512WS (FCC handset filings) [Confirmed] — fcc.report

Verified sample prefixes

DC:DE:4B, F8:3C:44, 30:C8:A2, 04:5E:0A — all MA-L, Shenzhen Transchan Technology Limited [Confirmed] — IEEE the IEEE MA-L registry

Possible parent / related entity

FCC filing contact uses an @transsion.com email address; a USPTO TRANSSION trademark record (Reg. No. 5730609) reportedly names this entity as registrant (source page returned 403 on direct fetch); precise corporate relationship to Transsion Holdings not documented in sources checked

[Likely] — fccid.io/2A5RQ-S661LO, trademarks.justia.com/792/47/transsion-79247680.html

Registration date

not published by IEEE — third-party "date registered" values (e.g. maclookup.app) are database scrape artifacts, not IEEE facts, and are not recorded as such [Confirmed] — IEEE the IEEE MA-L registry

Security context (brand-level, not entity-specific)

2020 Secure-D/Upstream report of Triada/xHelper malware preinstalled on ~53,000 Tecno W2 units; 2021 Privacy International test of a Tecno Y2 found an outdated Android build with hundreds of known CVEs and proprietary tracking frameworks — ecosystem-level history for the wider Transsion/Tecno/Infinix/itel brand group, not proven against this entity or these OUI blocks

[Likely] — globalsecuritymag.com, privacyinternational.org

Related vendors

possible link to Transsion Holdings (Shenzhen Transsion Holdings Co., Ltd.; parent of TECNO, Infinix, itel) [Likely] — fccid.io/2A5RQ-S661LO

Analyst note

identification beyond a bare single-OUI shell rests on 4 confirmed MA-L blocks plus a consistent FCC phone-filing history; the Transsion Holdings connection strengthens the device-class read but is not itself Confirmed — treat as Likely context, not a definitive parent-company claim.