MAC address vendor

Tiinlab Corporation — 9 prefixes (MA-L)

Primary prefix
00:BB:43
Block
MA-L
Status
Active

Summary

// what this is
Tiinlab is registered to MAC prefix 00:BB:43 and 8 more in the IEEE OUI database. When a device's MAC address begins with 00:BB:43, that block was registered by Tiinlab — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
9-prefix consolidated MA-L vendor with independently corroborated company substance (ODM for major consumer-audio brands, dozens of FCC filings) — not a bare single-OUI shell. The Acoustic Technology MA-M block is a related but legally/registry-distinct entity flagged for a separate producer/operator merge decision, not folded in here.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

Tiinlab Corporation holds nine separate MA-L (24-bit) OUI blocks, all registered under variations of a single Shenzhen, Guangdong campus address (Tower A, Tanglang City, 3333 Liuxian Avenue, Nanshan District), filed across different registration sessions with minor drift in floor number and postal code (518000 vs 518055) — consistent with one organization accumulating blocks over time rather than several distinct entities filing independently. Web research independently corroborates company substance beyond the bare registry listing: Tiinlab is the manufacturing parent of the 1MORE audio brand and operates as an ODM for Xiaomi, Huawei, HONOR, ASUS, Devialet, Moto, and boAt, producing Bluetooth true-wireless earbuds, in-ear headphones, and related consumer audio peripherals. FCC grantee code 2ASDI (Tiinlab Corporation) carries 65 equipment authorization filings spanning 2019 through 2026, including "1MORE True Wireless Earbuds" and "Mi True Wireless Earphones 2 Basic." A related but legally and registry-distinct entity, Tiinlab Acoustic Technology (Shenzhen) Co., Ltd., holds a separate MA-M block at a different Shenzhen address and is noted here for context only, not merged into this entry.

Registrant / registry class
Tiinlab Corporation — 9 MA-L (24-bit) blocks [Confirmed] — the IEEE MA-L registry
Prefixes
00:BB:43, 14:0A:29, 48:73:CB, 54:84:50, 84:AB:26, 84:E6:B3, A0:90:B5, A4:05:6E, D4:2B:F0 [Confirmed] — the IEEE MA-L registry (lines 982, 988, 7763, 15837, 22935, 30712, 31306, 32588, 32594); the Wireshark manufacturer database
Registered address
campus cluster at Tower A, Tanglang City, 3333 Liuxian Avenue, Nanshan District, Shenzhen, Guangdong, CN (address string / floor / postcode 518000 vs 518055 varies by filing; same physical site) [Likely — single-org inference from address clustering across filings] — the IEEE MA-L registry
Registration dates
none published for any of the 9 blocks — IEEE's OUI registry carries no assignment/registration date field [Confirmed null] — the IEEE MA-L registry, the Wireshark manufacturer database
Company substance / industry
manufacturing parent of the 1MORE audio brand; ODM for Xiaomi, Huawei, HONOR, ASUS, Devialet, Moto, boAt [Confirmed] — https://laotiantimes.com/2025/04/17/pioneering-in-intelligent-acoustic-manufacturing-decoding-tiinlabs-core-odm-competitiveness/, https://ifdesign.com/en/brands-creatives/company/tiinlab-corporation/17700
Device / usage context
consumer Bluetooth audio peripherals (true wireless earbuds, in-ear/BT headphones); FCC grantee 2ASDI carries 65 filings 2019–2026 [Confirmed] — https://fccid.io/2ASDI
Related but distinct entity
Tiinlab Acoustic Technology (Shenzhen) Co., Ltd. — separate IEEE registrant, MA-M block 0C:73:EB:30/28, different Shenzhen address (Xueyuan Road); not merged into this entry, flagged for a producer/operator merge decision
[Confirmed distinct registration] — the IEEE MA-M registry line 1877, https://fccid.io/2AN5MTWSEJ01JY
Security context
no CVEs or malicious-device reports found for Tiinlab products in this pass; assumed standard low-severity Bluetooth-peripheral risk profile, not exhaustively checked [Unknown] — no source (negative search result)
Company status
active [Likely] — https://ifdesign.com/en/brands-creatives/company/tiinlab-corporation/17700, https://laotiantimes.com/2025/04/17/pioneering-in-intelligent-acoustic-manufacturing-decoding-tiinlabs-core-odm-competitiveness/
Date-provenance caveat
maclookup.app lists a "registration date" of 2018-02-15 for the separate MA-M block (0C:73:EB:3/28, Tiinlab Acoustic Technology) — a third-party database artifact, not an IEEE-published fact, and not recorded as authoritative for this or any block here
[Confirmed caveat] — https://maclookup.app/vendors/tiinlab-acoustic-technology-shenzhen-co-ltd
[ 02 ] — OUI prefixes

Assignments by IEEE.

9
// registered prefixes9
  1. 00:BB:43MA-L
  2. 14:0A:29MA-L
  3. 48:73:CBMA-L
  4. 54:84:50MA-L
  5. 84:AB:26MA-L
  6. 84:E6:B3MA-L
  7. A0:90:B5MA-L
  8. A4:05:6EMA-L
  9. D4:2B:F0MA-L
[ 03 ] — Related

Keep digging.