Telink Micro LLC — 11 prefixes (MA-L)

A MAC address starting with one of eleven prefixes — 38:22:28, 4C:82:37, 60:3F:FB, 74:DC:13, 88:82:25, AC:5C:80, BC:9D:37, BC:F2:12, C0:A3:C7, C4:22:4E, or D0:AB:4A — belongs to Telink Micro LLC, typically seen on Bluetooth Low Energy, Zigbee, Thread, and other 2.4GHz IoT radio chipsets embedded in smart-home hardware such as bulbs, sensors, switches, and Bluetooth peripherals.

Telink Micro LLC is the Santa Clara, California-registered US legal entity of the Telink Semiconductor corporate group. It is a distinct IEEE registrant from the already-documented "Telink Semiconductor (Shanghai)" and "Telink Semiconductor (Taipei)" entities, though all share the same parent fabless IC design company founded in 2010.

The registered address, 2975 Scott Blvd #120, Santa Clara, CA 95054, is identical across all eleven blocks and matches an office address listed on Telink Semiconductor's own official contact page, corroborating that this OUI registrant is Telink's US corporate presence rather than an unrelated same-named company.

Product context ties directly to Telink's TLSR8-series 2.4GHz RF system-on-chips, used for BLE (up to 5.1), Zigbee, HomeKit, 6LoWPAN/Thread, and proprietary protocols. Because this is chipset silicon, the device brand on the box will almost always differ from Telink.

Telink Micro LLC also carries an industry membership listing under the Connectivity Standards Alliance (formerly Zigbee Alliance), and a California LLC filing (formed 2010-07-22) is reported by third-party corporate-registry aggregators, though that filing detail is not independently primary-sourced.

IEEE assignment

11 MA-L /24 blocks → "Telink Micro LLC" [Confirmed] — the IEEE MA-L registry

Registry class

MA-L only; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) rows exist for this exact org string [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry

Prefixes

38:22:28, 4C:82:37, 60:3F:FB, 74:DC:13, 88:82:25, AC:5C:80, BC:9D:37, BC:F2:12, C0:A3:C7, C4:22:4E, D0:AB:4A [Confirmed] — the IEEE MA-L registry. Note: a separate web/worktree check of an existing page found only 10 of the 11 (missing 88:82:25); the direct registry grep (11) is treated as authoritative.

Registered address

2975 Scott Blvd #120, Santa Clara, CA 95054, US — identical for all 11 blocks [Confirmed] — the IEEE MA-L registry; corroborated by https://www.telink-semi.com/contact-us/

Registration date

Unknown — IEEE's public OUI data carries no assignment/registration date column; none invented [Confirmed] — the IEEE MA-L registry

Corporate registration

California LLC, formed 2010-07-22, reported active, per third-party CA Secretary-of-State aggregator listings (not a primary filing source) [Likely] — https://opencorporates.com/companies/us_ca/201020510138, https://www.bizprofile.net/ca/santa-clara/telink-micro-llc

Industry membership

listed as "TeLink Micro LLC" on the Connectivity Standards Alliance member directory, described as part of the Telink group (offices Shanghai, Shenzhen, Taipei, Santa Clara, London, Lviv; founded 2010) [Confirmed] — https://zigbeealliance.org/member/telink-micro-llc/

Product/device context

TLSR8-series 2.4GHz RF SoCs for BLE (to 5.1), Zigbee, HomeKit, 6LoWPAN/Thread, and proprietary 2.4GHz protocols; used in IoT/smart-home hardware, chipset not device brand [Confirmed] — https://www.telink-semi.com/

Security context

no incident specific to the Santa Clara LLC; the applicable context is the parent Telink BLE SDK's role in the 2020 SweynTooth disclosures (CVE-2019-19194, CVE-2019-19196), affecting devices on Telink connectivity silicon generally

[Confirmed] — https://www.cisa.gov/news-events/ics-alerts/ics-alert-20-063-01

Related but out-of-scope entities

"Telink Semiconductor (Shanghai) Co., Ltd." (9 MA-L blocks, covered under vendor-telink, DONE) and "Telink Semiconductor (Taipei) Co. Ltd." (MA-L A4:C1:38) plus a distinct MA-S "Telink Semiconductor CO, Limtied, Taiwan" block (70:B3:D5/05-8, the IEEE MA-S registry) are separate IEEE org strings, not part of "Telink Micro LLC"

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

Relationship to existing entries

substantial company evidence (11 OUI blocks, matching corporate address, industry-alliance membership, product context) supports a standalone or checker-consolidated write-up; research flags this as a likely duplicate-of-DONE/alias candidate for the consolidated vendor-telink entry, following the same pattern already applied to the sibling Shanghai entity

[Likely] — analyst synthesis of R1/W1 angles