Aetheris Technology (Shanghai) Co., Ltd. — 9C:FC:D1 (MA-L)

A MAC address starting with 9C:FC:D1 belongs to Aetheris Technology (Shanghai) Co., Ltd., a Shanghai-based hardware maker best known as the company behind the AirPop brand of Bluetooth-connected air-quality smart masks. The prefix is IEEE's sole MA-L assignment to the company, registered to an address on Yuyuan Road, Shanghai.

This is not a bare shell registration. Aetheris holds US trademark registrations for AIRPOP and AIRWEAR, and its AirPop Active+ "Halo" smart mask — a coin-cell-powered Bluetooth Low Energy sensor that tracks breathing rate, breathing cycles, and filtered pollutant load — won Red Dot Design Award recognition and was a Core77 Design Awards finalist.

Device class

Bluetooth-connected air-quality wearable (AirPop Active+ "Halo" smart-mask sensor) [Likely] — https://hypebeast.com/2021/1/airpop-active-halo-smart-mask-launch-covid-19-info

Vendor

Aetheris Technology (Shanghai) Co., Ltd. [Confirmed] — the IEEE MA-L registry 9CFCD1

Registry class

MA-L (24-bit OUI), single known block [Confirmed] — the IEEE MA-L registry 9CFCD1

Also seen on

AirPop Active+ / Halo Bluetooth sensor module design-award listings [Confirmed] — https://www.red-dot.org/project/airpop-smart-mask-10303-10300

Registration date

Unknown — IEEE publishes none for MAC OUI assignments [Unknown]

IEEE assignment

9C:FC:D1 → Aetheris Technology (Shanghai) Co., Ltd., registered Shanghai, Shanghai, CN [Confirmed] — the IEEE MA-L registry 9CFCD1

Registry / block size

MA-L (24-bit OUI); single IEEE prefix found, no MA-M or MA-S registrations for the company [Confirmed] — the IEEE MA-L registry 9CFCD1; the IEEE MA-M registry; the IEEE MA-S registry

HQ / registered address

Room 225, Building No. 8, 433 Yuyuan Road, Shanghai, Shanghai, CN 200040 [Confirmed] — the IEEE MA-L registry 9CFCD1

Company status

active; holds US trademark registrations for AIRPOP and AIRWEAR under this legal name [Confirmed] — https://trademarks.justia.com/792/25/airpop-79225200.html

Device types

Bluetooth-connected air-quality smart mask (AirPop Active+ "Halo" BLE sensor) [Likely] — https://hypebeast.com/2021/1/airpop-active-halo-smart-mask-launch-covid-19-info

Notable products

AirPop Active+ / Halo smart mask — Red Dot Design Award; Core77 Design Awards finalist [Confirmed] — https://www.red-dot.org/project/airpop-smart-mask-10303-10300; https://designawards.core77.com/Consumer-Product/76542/AirPop-Air-Wearable

Verified sample prefix

9C:FC:D1 (only known assignment to this company) [Confirmed] — the IEEE MA-L registry 9CFCD1

Registration date caveat

third-party lookup sites show "November 26, 2016" for 9C:FC:D1; IEEE's public OUI data publishes no assignment date, so this is a database artifact, not an IEEE fact [Likely] — https://maclookup.app/vendors/aetheris-technology-shanghai-co-ltd

Security note

no CVE, malware, or advisory found tying Aetheris/AirPop hardware to any vulnerability as of an August 2026 search [Likely] — https://cyberpress.org/new-bluetooth-headphone-vulnerabilities/

Related vendors

none found [Unknown]

Analyst note

single-OUI vendor whose registration is corroborated by trademark filings, design awards, and press coverage of a specific Bluetooth sensor product — treat as an identifiable manufacturer, not a shell registration [Confirmed]