Sunnovo International Limited holds 11 IEEE MA-L (24-bit OUI) blocks, all registered to the same company name but split across two addresses: nine prefixes carry a Beijing, China registry address (1717 Haitai Building, Beijing 100083) and two — 14:80:1F and 48:E5:33 — carry a Hong Kong registered address (Unit 805, 8/F, Harbour Crystal Centre, 100 Granville Road, Tsimshatsui East, Kowloon). Consolidating all 11 blocks into one vendor entry is far more useful than minting near-identical per-prefix pages. Public evidence points to a hardware manufacturer in the IP set-top box space: US import records from 2017–2019 show Sunnovo shipping "IP SET TOP BOX" units (sometimes bundled with SATA DVD modules) to US importers, and Fingerbank classifies the vendor as a generic "Hardware Manufacturer." No vendor-operated website (sunnovo.com / .net / .cn) was discoverable, and no CVEs, malware, botnet activity, or vendor-specific security research was found in any indexed source as of June 2026 — general IoT/set-top-box device-class risk applies but nothing is documented for this vendor specifically. A same-named entity appears in the ICIJ Offshore Leaks database (BVI-linked, incorporated 2006, now liquidated); its connection to the OUI-registered hardware vendor cannot be confirmed or ruled out from public sources.
- IEEE assignment
- 11 prefixes → Sunnovo International Limited [Confirmed] — IEEE oui.csv (enrichment/registries/oui.csv); maclookup.app/vendors/sunnovo-international-limited
- Registry / block size
- MA-L (24-bit OUI); holds 11 IEEE prefixes (~184.5M addresses) [Confirmed] — IEEE oui.csv; mac-address.alldatafeeds.com/statistics/company/14779. NOTE: IEEE's public OUI data publishes NO assignment/registration date (oui.csv columns are only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.
- Verified prefixes (all MA-L, Sunnovo International Limited)
- 00:69:2D, 08:A5:C8, 14:80:1F, 20:4B:22, 2C:43:BE, 48:E5:33, 54:C5:7A, 60:31:3B, 60:D2:1C, 88:6B:44, AC:56:7B [Confirmed] — IEEE oui.csv
- Primary registry address (9 prefixes)
- 1717 Haitai Building, Beijing, Beijing 100083, CN [Confirmed] — IEEE oui.csv; hwaddress.com gives the fuller street form (Beisihuan Zhong Road)
- Alternate registry address (2 prefixes
- 14:80:1F, 48:E5:33): Unit 805, 8/F, Harbour Crystal Centre, 100 Granville Road, Tsimshatsui East, Kowloon, HK [Confirmed] — IEEE oui.csv
- Country
- CN (primary), HK (alternate registered address) [Confirmed] — IEEE oui.csv
- Device types
- IP set-top boxes (with some SATA DVD modules) [Likely] — US import records 2017–2019 (importgenius.com/suppliers/sunnovo-inc; matchory.com/supplier/sunnovo-international); Fingerbank classifies vendor as generic "Hardware Manufacturer" with no specific device fingerprints (api.fingerbank.org/devices/20255)
- Company status
- Unknown — no vendor-operated web presence or current registration status confirmed for the Beijing/HK hardware vendor
- Website
- Unknown — no official vendor site (sunnovo.com/.net/.cn) discoverable via search
- Registration date
- Unknown — third-party databases cite an earliest prefix "registered" date of 2014-08-28 and a most-recent of 2025-01-14, but these are third-party database artifacts, not IEEE-published facts, and are NOT recorded as a registration date [Unknown] — maclookup.app/vendors/sunnovo-international-limited
- Security note
- No CVEs, malware, botnet, or vendor-specific security research found as of June 2026; general IoT/set-top-box risk (outdated firmware, default credentials, exposed services) applies but nothing is documented for this vendor specifically [Unknown / no evidence found]
- Corporate note
- ICIJ Offshore Leaks lists a same-named "SUNNOVO INTERNATIONAL LIMITED" (BVI-linked, incorporated 2006-11-23, now liquidated); link to the OUI-registered hardware vendor is unconfirmed [Unknown] — offshoreleaks.icij.org/nodes/205376
- Analyst note
- A Sunnovo OUI on a globally-administered address identifies genuine Sunnovo-registered hardware (most plausibly an IP set-top box); device type is corroborated by import records but not vendor-published, so treat it as Likely rather than Confirmed.