Shenzhen TINNO Mobile Technology Corp. — 21 prefixes (MA-L)

Shenzhen TINNO Mobile Technology Corp. is a substantive Chinese original-design manufacturer (ODM), founded in 2005 and headquartered in Nanshan District, Shenzhen, Guangdong — not a bare single-OUI registrant. It holds 21 separate MA-L (24-bit OUI) blocks in the IEEE registry, and the multi-block footprint accumulated over many years is itself corroborating evidence of an active, ongoing hardware maker rather than a shell. TINNO builds mobile phones and IoT devices, both under ODM contract for other brands and under its own consumer labels (notably Wiko and Sugar), and independent coverage also attributes tablets, network terminals, and 5G/mmWave devices to its portfolio. Two organization-name spellings appear across the registered blocks — "Shenzhen TINNO Mobile Technology Corp." on most prefixes and "Shenzhen Tinno Mobile Technology Corp" (no trailing period, prefix AC:24:77) on one later block — and three distinct Shenzhen registry addresses coexist across the assignments, consistent with registrations filed over a span of years as the company grew and relocated. The important OUI caveat is the same as for any mobile-device maker: modern phones and tablets frequently use MAC randomization on Wi-Fi, so a globally-administered TINNO OUI identifies genuine TINNO-built hardware, but its absence does not mean "not TINNO." No IEEE assignment dates exist for these blocks — IEEE publishes none — and any per-prefix "registration date" on third-party lookup tools is a database artifact, not an IEEE fact.

IEEE assignment

~21 MA-L prefixes → Shenzhen TINNO Mobile Technology Corp., Shenzhen, Guangdong, CN [Confirmed] — the IEEE MA-L registry (cached IEEE MA-L registry)

Registry / block size

MA-L (24-bit OUI) only; zero matches in MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

Org-name variants

"Shenzhen TINNO Mobile Technology Corp." (majority of blocks, trailing period) and "Shenzhen Tinno Mobile Technology Corp" (one block, AC:24:77, no period, different casing) — same organization [Confirmed] — the IEEE MA-L registry

HQ / country

Shenzhen, Guangdong, CN (three distinct registered addresses across blocks, all Shenzhen 518053: Xiandong Rd / Xili Nanshan; OCT Eastern Industrial Park; and Tianlong Mobile Headquarters Building, Tongfa South Rd, Xili, Nanshan for AC:24:77) [Confirmed] — the IEEE MA-L registry

Company status

active [Confirmed] — en.tinno.com/about/overview/, en.wikipedia.org/wiki/Tinno_Mobile

Founded

2005 [Confirmed] — en.tinno.com/about/course/, en.wikipedia.org/wiki/Tinno_Mobile

Device types

mobile phones, IoT devices (vendor's own site); broader coverage adds tablets, network terminals, 5G/mmWave, automotive electronics [Confirmed for phones/IoT; Likely for the broader list] — en.tinno.com/product/, en.wikipedia.org/wiki/Tinno_Mobile

Own brands / ODM

consumer brands Wiko and Sugar; ODM partner reported for brands including Lenovo, Transsion, HONOR, Xiaomi, and US carriers [Confirmed brands; Likely for the partner list] — en.wikipedia.org/wiki/Tinno_Mobile

Verified sample prefixes (all MA-L, this org)

D0:B3:3F, AC:24:77, E0:6C:4E, 80:6A:B0, 7C:6C:F0 [Confirmed] — the IEEE MA-L registry

Total prefix count

21 MA-L blocks [Confirmed] — the IEEE MA-L registry (full case-insensitive scan grep -c -i "TINNO Mobile Technology" the IEEE MA-L registry = 21, 2026-07-05)

IEEE registration date

none published by IEEE; third-party "date registered" values (e.g. maclookup.app D0:B3:3F 2010-02-21, AC:24:77 2026-04-24) are database artifacts, NOT IEEE facts and NOT recorded as such [Confirmed] — maclookup.app/vendors/shenzhen-tinno-mobile-technology-corp (third-party)

Security / abuse context

no CVEs, advisories, or abuse reporting specific to TINNO devices or these OUIs found this pass — Unknown, treated as a sourced null (absence of reporting is not proof of a clean record); do NOT conflate with the unrelated Indian "Tinxy" smart-home brand (CVE-2025-2189) [Unknown]

Special note

mobile-device maker → MAC randomization applies on Wi-Fi; a globally-administered TINNO OUI = genuine TINNO hardware, but absence does not mean "not TINNO"; don't rely on OUI alone for inventory or MAC-based access control

Analyst note

consolidating ~21 near-identical per-prefix pages into one vendor entry is far more useful than minting per-prefix pages