Onkyo Technology K.K. — 2 MA-L prefixes

A MAC address beginning 00:09:B0 or 6C:72:4A belongs to Onkyo Technology K.K., the MAC-registrant entity for Onkyo Corporation, a Japanese consumer-audio maker, and is typically seen on network-connected AV or stereo receivers rather than IT infrastructure.

Onkyo Corporation (オンキヨー株式会社) was founded in Osaka in 1946 and still operates today, making amplifiers, speakers, and networked home-audio gear. Onkyo Technology K.K. holds two separate MA-L blocks registered 20 years apart — a substance signal beyond a single bare registration, since a shell registrant would not typically hold two.

Current product lines confirm active device deployment: the TX-8470 network stereo receiver and TX-NR7100 AV receiver both ship with Ethernet/Wi-Fi connectivity (Chromecast, AirPlay-class, DTS Play-Fi, FlareConnect). Older models TX-NR686 and TX-NR585 are independently confirmed as real network-connected receivers through their own published firmware vulnerabilities.

Two CVEs exist against Onkyo receiver firmware: CVE-2019-6113 (TX-NR686, directory traversal) and CVE-2020-12447 (TX-NR585, local file inclusion reading /etc/shadow). Both are information-disclosure bugs in specific firmware builds, not evidence of a botnet or malware campaign — no such association was found for these OUIs or for Onkyo devices generically as of an August 2026 search.

Device class

Network-connected AV and stereo receivers (home/SOHO audio equipment)

Vendor

Onkyo Technology K.K., registrant entity for Onkyo Corporation, Osaka, Japan

Prefixes

00:09:B0 and 6C:72:4A, both dedicated MA-L (/24) blocks assigned to this entity

Also seen on

TX-8470, TX-NR7100, TX-NR686, TX-NR585 network receivers (onkyo.com press releases; CVE records)

Typical network

Home/SOHO Ethernet or Wi-Fi, not enterprise or carrier infrastructure

IEEE assignment

2 prefixes → Onkyo Technology K.K., registered Higashiosaka City, Osaka, JP [Confirmed] — the IEEE MA-L registry (MA-L 0009B0, MA-L 6C724A)

Registry / block size

MA-L (24-bit OUI); 2 dedicated blocks, not a shared IEEE-RA base [Confirmed] — the IEEE MA-L registry

HQ / country

Lux Building (5th floor), 1-1-41 Kawamata, Higashiosaka City, Osaka 577-0063, Japan [Confirmed] — the IEEE MA-L registry

Company status

active [Confirmed] — https://www.onkyo.net/en

Device types

network-connected AV receivers, stereo receivers [Confirmed] — https://onkyo.com/press/new-tx-8470-stereo-receiver-blends-audio-fidelity-with-modern-connectivity

Notable products

TX-8470, TX-NR7100, TX-NR686, TX-NR585 [Confirmed] — https://onkyo.com/press/new-tx-8470-stereo-receiver-blends-audio-fidelity-with-modern-connectivity, https://cve.circl.lu/cve/CVE-2019-6113

Verified sample prefixes

00:09:B0, 6C:72:4A [Confirmed] — the IEEE MA-L registry

Registration-date caveat

third-party maclookup.app lists 2002-06-05 (00:09:B0) and 2022-04-20 (6C:72:4A) — these are third-party database artifacts, not IEEE-published facts; IEEE's MA-L registry carries no date column. [Confirmed] — https://maclookup.app/vendors/onkyo-technology-k-k

Security context

two NVD-listed CVEs in Onkyo AV receiver firmware — CVE-2019-6113 (TX-NR686, directory traversal, CVSS 3.0 7.5, published 2019-08-29) and CVE-2020-12447 (TX-NR585, LFI reading /etc/shadow, CVSS 7.5) [Confirmed] — https://cve.circl.lu/cve/CVE-2019-6113, https://nvd.nist.gov/vuln/detail/CVE-2020-12447

Malware / botnet association

none found for these OUIs or Onkyo devices generically, as of an August 2026 search [Likely] — no corroborating source found

Related vendors

Onkyo Corporation (parent company) [Confirmed] — https://www.onkyo.net/en/company

Analyst note

two dedicated MA-L blocks assigned to the same entity two decades apart, plus a continuously operating corporate parent with a current, Ethernet/Wi-Fi-connected product line, place this well above a bare-registration shell.