ASR Microelectronics holds a single MA-L block — 8C:59:DC — registered as "ASR Microelectronics (Shanghai) Co., Ltd." at Building 2, No. 399 Keyuan Road, Pudong District, Shanghai, China. These OUIs appear on cellular modems (4G/5G), IoT and LTE-Cat connectivity SoCs, and smartphone/IoT application processors, plus some Wi-Fi/Bluetooth in IoT modules. ASR was founded in April 2015 in Shanghai (SSE STAR Market ticker 688220) and acquired Marvell's LTE thin-modem business in May 2017 for $45 million — the Marvell-mobile lineage (Marvell is covered separately). The key analyst point is the chipset pattern: an 8C:59:DC OUI may identify a device built on ASR cellular/IoT silicon regardless of the brand on the box, common in IoT and cellular modules and budget devices. For triage, treat 8C:59:DC as "device using ASR silicon," not a specific brand — typically an IoT/cellular module or budget connected device.
- IEEE assignment
- 1 prefix → "ASR Microelectronics (Shanghai) Co., Ltd." (8C:59:DC), Shanghai, China [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 1 block [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- Building 2, No. 399 Keyuan Road, Pudong District, Shanghai 201210, China [Confirmed] — maclookup.app
- Company status
- active; founded April 2015, Shanghai (SSE STAR Market 688220); acquired Marvell's LTE thin-modem business May 2017 for $45M [Confirmed] — Marvell FY2018 Q1 8-K (SEC)
- Device types
- cellular modems (4G/5G), IoT/LTE-Cat connectivity SoCs, smartphone/IoT application processors; some Wi-Fi/BT in IoT modules [Confirmed] — asrmicro.com
- Notable products
- cellular baseband/modem chips, LTE-Cat IoT SoCs
- Verified prefix
- 8C:59:DC (MA-L) [Confirmed] — maclookup.app, mac.lc
- Special note
- Chipset-OUI flag — an 8C:59:DC OUI may identify a device built on ASR cellular/IoT silicon regardless of brand (common in IoT/cellular modules and budget devices). Marvell-mobile lineage (acquired Marvell's LTE thin-modem business 2017). The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Marvell (LTE thin-modem business lineage)
- Analyst note
- Treat 8C:59:DC as "device using ASR silicon," not a specific brand — typically an IoT/cellular module or budget connected device.