Yichip Microelectronics (Hangzhou) Co.,Ltd — 4 prefixes (MA-L)

A MAC address starting with 00:B8:10, 10:83:21, 1C:C1:BC, or 9C:82:75 belongs to Yichip Microelectronics (Hangzhou) Co.,Ltd, a Chinese fabless semiconductor design house whose Bluetooth and WiFi system-on-chip products typically turn up in wireless peripherals: mice, keyboards, game controllers, wearables, POS terminals, and general networking gear.

Yichip was founded in 2014 and operates out of Hangzhou and Shanghai, designing SoCs for Bluetooth, WiFi, NFC, and security applications. Two specific chips corroborate the product line: the YC1166, a Bluetooth 5.0 BR/EDR/BLE SoC, and the YC1021(W), a Bluetooth 3.0+5.0 BLE plus 2.4GHz-proprietary triple-mode SoC.

The company holds four separate MA-L (24-bit) OUI blocks under the same registrant name — not just one — and a USB-IF Vendor ID (0x3151) with five product IDs categorized "Wireless Device" and "2.4G Receiver." That combination of multiple OUI assignments, an identifiable company, and independent USB-IF corroboration is why this entry documents a real vendor rather than a bare single-block registration.

Third-party lookup tools display per-block registration dates for these prefixes (2018-09-09, 2019-08-21, 2019-10-10, and 2025-10-01), but IEEE's public OUI registry publishes no assignment dates at all — those figures are database-scrape artifacts from macaddress.io and maclookup.app, not IEEE facts, and should not be cited as an IEEE registration date.

No CVEs or vendor-specific security advisories turned up in this pass, but that reflects the scope of the research angle rather than a confirmed clean record — a dedicated vulnerability search was not run. Treat devices carrying this OUI as ordinary consumer/IoT wireless peripherals pending further evidence either way.

IEEE assignment

4 prefixes → Yichip Microelectronics (Hangzhou) Co.,Ltd, registered Shanghai, CN [Confirmed] — the IEEE MA-L registry (IEEE MA-L data)

Registry / block size

MA-L (24-bit OUI); holds 4 IEEE prefixes; no MA-M/MA-S registrations found under this name [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (grep search, no results)

HQ / country

Room 401, Building 15, No.498 Guoshoujing Road, Pudong Software Park Shanghai CN 200120 [Confirmed] — the IEEE MA-L registry (all Yichip entries)

Company status

active; fabless semiconductor design house, founded 2014, based in Hangzhou/Shanghai, CN [Confirmed] — crunchbase.com/organization/yichip-electronics, tracxn.com

Device types

Bluetooth/2.4GHz-proprietary/WiFi SoC chips used in wireless mice, keyboards, game controllers, wearables, POS terminals, networking equipment, health/sports devices [Likely] — alldatasheet.com, scribd.com, tracxn.com

Notable products

YC1166 (Bluetooth 5.0 BR/EDR/BLE SoC), YC1021(W) (Bluetooth 3.0+5.0 BLE + 2.4GHz proprietary triple-mode SoC) [Confirmed] — alldatasheet.com, scribd.com

Verified sample prefixes (all MA-L, Yichip Microelectronics)

00:B8:10, 10:83:21, 1C:C1:BC, 9C:82:75 [Confirmed] — the IEEE MA-L registry, macaddress.io/statistics/company/22268

Independent corroboration

USB-IF Vendor ID 0x3151, registered to the same company name, 5 product IDs categorized "Wireless Device" / "2.4G Receiver" [Confirmed] — the-sz.com/products/usbid/index.php?v=0x3151

Registration dates caveat

third-party tools (macaddress.io, maclookup.app) show per-block dates 2018-09-09, 2019-08-21, 2019-10-10, 2025-10-01; IEEE's public the IEEE MA-L registry publishes no assignment date at all — do not attribute these dates to IEEE

[Confirmed] — macaddress.io/statistics/company/22268, maclookup.app/vendors/yichip-microelectronics-hangzhou-co-ltd

Security/CVE context

no CVEs or vendor-specific advisories found in this pass; a dedicated CVE/advisory search was not run, so this is an absence-of-search result, not a confirmed clean record [Unknown] — no citations available

Related vendors

none found [Unknown]

Analyst note

multiple MA-L blocks plus specific product SKUs plus an independent USB-IF registration together clear the abstention bar for a non-shell vendor entry — this is not a bare single-OUI registration [Confirmed] — synthesis of above sources