Jiangxi Risound Electronics Co.,LTD — 6 prefixes (MA-L)
Summary
- // what this is
- Jiangxi Risound Electronics is registered to MAC prefix
9C:DE:F0and 5 more in the IEEE OUI database. When a device's MAC address begins with9C:DE:F0, that block was registered by Jiangxi Risound Electronics — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Six MA-L blocks to one identical registrant plus independent trade-directory corroboration of a real operating OEM is sufficient substance beyond a bare single-OUI registration; devices seen on a LAN/WLAN with these prefixes most plausibly are audio accessories, not networking infrastructure.
About this vendor.
A MAC address beginning with one of six Jiangxi Risound Electronics Co.,LTD prefixes — 9C:DE:F0, 08:12:87, 18:5C:A1, 60:55:56, 74:05:1D, or 84:0F:2A — identifies hardware from this Ji'an, Jiangxi-based Chinese consumer-audio OEM/ODM, most plausibly wired or Bluetooth earphones, headphones, or related audio accessories rather than networking or IoT infrastructure gear.
All six IEEE MA-L blocks register to the identical name and address: No 271, Innovation Avenue, Jinggangshan Economic and Technological Development Zone, Ji'an, Jiangxi, CN 343100. One row records a minor spelling variant ("Jian" vs "Ji'an") that is an IEEE data-entry inconsistency, not a separate registrant.
Independent trade-directory listings (made-in-china.com, TradeIndia, TradeKey, ExportHub) corroborate a real operating manufacturer founded in the early-to-mid 2000s with roughly 800 employees, ISO9001 and CE certification, and a stated product line of wired earphones and headphones for phones and MP3/MP4 players — substance beyond a bare single-OUI registration.
No vendor-specific security advisories or CVEs turned up. 2025 Airoha Bluetooth-chip disclosures affected the audio-accessory category broadly but did not name Risound. IEEE publishes no registration date for MA-L assignments, so a build date for these prefixes is Unknown rather than inferred.
- IEEE assignment
- 6 MA-L prefixes → Jiangxi Risound Electronics Co.,LTD, registered Ji'an, Jiangxi, CN [Confirmed] — the IEEE MA-L registry
- Registry / block size
- MA-L (24-bit OUI); no MA-M/MA-S (36-bit) blocks found for this registrant [Confirmed] — the IEEE MA-L registry, the Wireshark manufacturer database
- HQ / country
- No 271, Innovation Avenue, Jinggangshan Economic and Technological Development Zone, Ji'an, Jiangxi, CN 343100 [Confirmed] — IEEE MA-L
- Company status
- active, operating manufacturer per trade-directory listings [Likely] — made-in-china.com, tradeindia.com
- Device types
- wired earphones/headphones confirmed; Bluetooth/TWS lines inferred, not directly confirmed [Likely] — made-in-china.com, tradeindia.com/product-services.html
- Notable products
- OEM/ODM earphones and headphones for mobile phones and MP3/MP4/iPod players, ISO9001 + CE certified [Likely] — tradeindia.com, tradekey.com
- Verified prefixes (all MA-L)
- 9C:DE:F0, 08:12:87, 18:5C:A1, 60:55:56, 74:05:1D, 84:0F:2A [Confirmed] — the IEEE MA-L registry lines 6975,6976,7615,23262,30773,38707
- Date registered
- Unknown — IEEE publishes no registration dates for MA-L assignments [Confirmed]
- Related vendors
- none identified
- Analyst note
- six MA-L blocks to one identical registrant plus independent trade-directory corroboration of a real operating OEM is sufficient substance beyond a bare single-OUI registration; no evidence ties this vendor to any Bluetooth-chip CVE disclosures.