Austrian Audio GmbH holds a single IEEE MA-L block, 70:DA:17, registered to the company's Vienna address at Eitnergasse 15, 1230 Vienna, Austria. The firm is a professional-audio manufacturer founded in July 2017 by 22 former AKG Acoustics employees after AKG's Vienna engineering operation closed; in 2025 DPA Microphones acquired a majority share while Austrian Audio kept its Vienna presence and brand. Its product line is microphones and headphones — large-diaphragm condenser mics (OC818, OC18), dynamic and wireless mics, and the Hi-X studio-headphone series — so a device surfacing under this OUI on a network is an audio peripheral, not infrastructure. The only network-attached gear identified is Bluetooth: the Hi-X25BT over-ear headphone (BT 5.0, A2DP/AVRCP/HSP/HFP, SBC) and the OCR8 Bluetooth microphone-remote dongle. No Ethernet or Wi-Fi products were found, and no Austrian Audio-specific CVEs exist; the relevant risk is the generic Bluetooth-audio class (proximity-bound link-key attacks), with the Hi-X25BT's SoC undisclosed so the 2025 Airoha CVE-2025-20700 series cannot be confirmed to apply. As with all OUIs, IEEE publishes no assignment date for this block; the "2021-04-29" shown on third-party lookup tools is a database first-seen artifact, not an IEEE registration date.
- IEEE assignment
- 70:DA:17 → Austrian Audio GmbH, registered Eitnergasse 15, 1230 Vienna, AT [Confirmed] — IEEE MA-L (oui.csv); prefix corroborated by https://maclookup.app/vendors/austrian-audio-gmbh
- Registry / block size
- MA-L (24-bit OUI); single block found in oui.csv; absent from mam.csv (MA-M) and oui36.csv (MA-S) [Confirmed] — IEEE MA-L registry
- HQ / country
- Eitnergasse 15, 1230 Vienna, Austria (registry address; corporate HQ Vienna) [Confirmed] — IEEE MA-L; https://austrian.audio/about-us/; https://en.wikipedia.org/wiki/Austrian_Audio
- Company status
- active [Confirmed] — https://austrian.audio/about-us/
- Company founded
- July 2017, by 22 former AKG Acoustics employees after AKG's Vienna offices closed [Confirmed] — https://en.wikipedia.org/wiki/Austrian_Audio; https://austrian.audio/about-us/
- Parent company
- DPA Microphones (acquired majority share in 2025; Austrian Audio retains its Vienna presence and brand) [Confirmed] — https://en.wikipedia.org/wiki/Austrian_Audio
- Device types
- professional microphones (OC818, OC18 large-diaphragm condensers; dynamic and wireless mics) and studio/consumer headphones (Hi-X series, incl. Hi-X25BT Bluetooth); OCR8 Bluetooth mic-remote dongle [Confirmed] — https://austrian.audio/product-category/microphones/; https://austrian.audio/product-category/headphones/
- Network-attached gear
- Bluetooth only — Hi-X25BT (BT 5.0, A2DP/AVRCP/HSP/HFP, SBC codec) and OCR8 dongle; no Ethernet or Wi-Fi products identified [Confirmed] — https://austrian.audio/product/hi-x25bt/; https://austrian.audio/download/ocr8-manual/ocr8_manual_v06-2/?attachment_id=9219&download_file=1
- No IEEE date
- IEEE publishes no assignment/registration date for OUI/MA-L blocks; maclookup.app's "2021-04-29" is that service's first-seen database artifact, not an IEEE fact — do not record as a registration date [Confirmed] — https://maclookup.app/vendors/austrian-audio-gmbh
- Security context
- no Austrian Audio-specific CVEs or advisories found; generic Bluetooth-audio class risk only (proximity-bound link-key extraction). 2025 Airoha SoC CVEs (CVE-2025-20700/20701/20702) hit ~30 BT audio products industry-wide, but the Hi-X25BT's chipset is undisclosed, so applicability is unconfirmed [Likely] — https://www.malwarebytes.com/blog/news/2025/07/bluetooth-vulnerability-in-audio-devices-can-be-exploited-to-spy-on-users; https://cybersecuritynews.com/bluetooth-headphones-vulnerabilities/
- IANA Reference
- (none) [Confirmed] — not an IANA-registered identifier; field intentionally blank
- Analyst note
- a device under 70:DA:17 is a Bluetooth audio peripheral (headphone or mic dongle), not infrastructure — low-risk, well-understood class in studio/broadcast/prosumer environments [Confirmed] — https://austrian.audio/about-us/