Compal Broadband Networks, Inc. (CBN) holds 9 MA-L blocks (about 151 million addresses) registered at 13F., No. 1, Taiyuan 1st St., Zhubei City, Hsinchu County, Taiwan. Verified samples include 34:2C:C4, 38:43:7D, 54:67:51, 5C:35:3B, 68:02:B8, and AC:22:05 (the full set also includes 90:5C:44, B4:F2:67, and DC:53:7C). These OUIs appear on DOCSIS cable modems, residential gateways, fiber CPE, and set-top boxes, typically carrier-branded and supplied to cable ISPs. The critical normalization point is a distinct-registrant flag: Compal Broadband Networks (CBN, broadband CPE) is a SEPARATE IEEE registrant from Compal Electronics (the laptop ODM covered in a prior batch) and from Compal Information (Kunshan) — these must not be conflated. The key analyst point is the ISP-supplied-CPE pattern. For triage, a CBN OUI flags an ISP-deployed cable modem, gateway, or set-top box — do not conflate it with Compal Electronics laptops, which are a different company and a different device class.
- IEEE assignment
- 9 prefixes → "Compal Broadband Networks, Inc.", registered Zhubei City, Hsinchu County, Taiwan [Confirmed] — IEEE MA-L
- Registry / block size
- MA-L; 9 blocks (~151M addresses) [Confirmed] — maclookup.app (IEEE-sourced)
- HQ / country
- 13F., No. 1, Taiyuan 1st St., Zhubei City, Hsinchu County 30265, Taiwan [Confirmed] — maclookup.app
- Company status
- active [Likely] — cbnet.com.tw
- Device types
- DOCSIS cable modems, residential gateways, fiber CPE, set-top boxes [Confirmed] — maclookup.app
- Notable products
- carrier-branded cable modems/gateways supplied to cable ISPs
- Verified prefix sample
- 34:2C:C4, 38:43:7D, 54:67:51, 5C:35:3B, 68:02:B8, AC:22:05 (full set also 90:5C:44, B4:F2:67, DC:53:7C) [Confirmed] — maclookup.app
- Special note
- ISP-supplied-CPE case AND a critical distinct-registrant flag — Compal Broadband Networks (CBN, broadband CPE) is a SEPARATE IEEE registrant from Compal Electronics (laptop ODM, covered prior) and from Compal Information (Kunshan). The IEEE registry publishes no assignment dates, so none is stated here. [Confirmed]
- Related vendors
- Compal Electronics (related but distinct laptop ODM)
- Analyst note
- A CBN OUI flags an ISP-deployed cable modem/gateway/STB; do NOT conflate with Compal Electronics laptops — different company, different device class.