Shenzhen Tecno Technology — 4 prefixes (MA-L)

Shenzhen Tecno Technology holds four IEEE MA-L blocks — C4-D4-D0, C0-6E-3D, A4-9D-B8, and CC-7A-8B — all registered to the org string "SHENZHEN TECNO TECHNOLOGY" against a single Shenzhen address in Longhua District. The registrant is a real, identifiable Chinese electronics company: business filings describe it as engaged in the development, production, and sale of mobile phones and electronic products, classified under Computer Systems Design and Related Services, with a documented patent portfolio and export-shipment history. The most important caveat for anyone using these prefixes is identity disambiguation. This registrant is NOT "TECNO MOBILE LIMITED" — the Transsion-owned handset brand headquartered in Hong Kong (World Finance Centre), which holds dozens of its own separate MA-L blocks and is tracked in this project as a distinct DONE vendor. The two share the "Tecno" token and both ship phones, but they are different IEEE registrants with different addresses and different OUI sets; conflating them would misattribute hardware. A secondary caveat is source posture: the OUI-to-company link rests primarily on the first-party IEEE registry read (the cached the IEEE MA-L registry), while third-party MAC-lookup databases did not surface these prefixes under this exact name — so the registry assignment is Confirmed but the broader corporate profile is corroborated by business-directory sources rather than a second registry angle.

IEEE assignment

4 prefixes → SHENZHEN TECNO TECHNOLOGY, registered Shenzhen, Guangdong, CN [Confirmed] — IEEE MA-L (cached copy, direct registry read)

Registry / block size

MA-L (24-bit OUI); no entries in MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) for this org [Confirmed] — IEEE registry files (the IEEE MA-L registry / the IEEE MA-M registry / the IEEE MA-S registry, direct read). NOTE: IEEE's public OUI data publishes NO assignment/registration date (columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.

HQ / country

101, Building 24, Waijing Industrial Park, Fumin Community, Fucheng Street, Longhua District, Shenzhen City, Guangdong, CN 518000 (registry address; business filings give 518081) [Confirmed] — IEEE MA-L; D&B business directory

Company status

active [Likely] — dnb.com business directory (single-source; not an IEEE fact)

Device types

mobile phones and electronic products (company's stated business line; not tied per-prefix to a specific device) [Likely] — dnb.com / patsnap.com company profile

Notable products

Unknown (no specific named product line verified against these OUIs)

Verified prefixes (all MA-L, SHENZHEN TECNO TECHNOLOGY)

C4:D4:D0, C0:6E:3D, A4:9D:B8, CC:7A:8B [Confirmed] — IEEE MA-L (cached copy)

Company substance

real Chinese company — 354 patents (PatSnap), export-shipment history (primary market Uzbekistan, per Volza), Singapore-incorporated affiliate "SHENZHEN TECNO TECHNOLOGY CO., LTD" (inc. 19 Nov 2020, OpenGovSG)

[Likely] — patsnap.com, volza.com, opengovsg.com (business-directory aggregators, not registry)

Disambiguation (data trap)

NOT "TECNO MOBILE LIMITED" (Transsion brand, Hong Kong / World Finance Centre), which holds dozens of its own separate MA-L blocks and is a distinct DONE vendor here (vendor-tecno-mobile). Different registrant, different address, different OUI set — do not conflate.

[Confirmed] — IEEE MA-L (both org strings present in the same the IEEE MA-L registry)

Source posture note

OUI assignment rests on the first-party IEEE registry read; third-party MAC-lookup databases (maclookup.app, macverify.com, macvendorlookup.com) did NOT surface these prefixes under this exact registrant name (bounded-tool-access null on the web angle, not a refutation). [Confirmed as posture]

Analyst note

A globally-administered address from one of these 4 prefixes identifies this specific Shenzhen registrant's hardware — but verify it is not being confused with Transsion's TECNO MOBILE LIMITED, and note that phones commonly use MAC randomization on Wi-Fi, so absence of one of these OUIs does not mean "not this vendor."