Gemtek holds 15 MA-L blocks (about 251.7 million addresses) registered as "Gemtek Technology Co., Ltd." at No. 1, Jen Ai Road, Hsinchu Industrial Park, Hukou, Hsinchu, Taiwan. Verified samples include 00:14:A5, 00:21:00, 00:26:82, 1C:49:7B, 58:13:D3, and AC:81:12. These OUIs appear on Wi-Fi routers and gateways, broadband CPE, wireless modules, and IoT devices. The key analyst point combines the ODM "OUI ≠ brand" pattern with an ISP-supplied-gear angle: a Gemtek OUI may appear on a device sold under another brand or as ISP-supplied CPE, placing it in the same cluster as Sercomm, Arcadyan, and Askey. For triage, a Gemtek OUI on a residential network almost always means ISP-supplied or rebranded CPE — map it to "Gemtek-built router/gateway," then check the deploying ISP.
- IEEE assignment
- 15 prefixes → "Gemtek Technology Co., Ltd.", registered Hsinchu, Taiwan [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 15 blocks (~251.7M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- No. 1, Jen Ai Road, Hsinchu Industrial Park, Hukou, Hsinchu 30352, Taiwan [Confirmed] — maclookup.app
- Company status
- active [Confirmed] — gemtek.com.tw
- Device types
- Wi-Fi routers/gateways, broadband CPE, wireless modules, IoT [Confirmed] — maclookup.app
- Notable products
- ISP-supplied routers/gateways and wireless modules built for ISPs and brands
- Verified prefix sample
- 00:14:A5, 00:21:00, 00:26:82, 1C:49:7B, 58:13:D3, AC:81:12 [Confirmed] — maclookup.app
- Special note
- ODM + ISP-supplied-CPE case. A Gemtek OUI may appear on a device sold under another brand or as ISP-supplied CPE (like Sercomm/Arcadyan/Askey). The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Sercomm, Arcadyan, Askey (comparable CPE ODMs)
- Analyst note
- A Gemtek OUI on a residential network almost always means ISP-supplied or rebranded CPE; map to "Gemtek-built router/gateway," then check the deploying ISP.