Hsing Tech Enterprise Co., Ltd. — 3 prefixes (MA-L)

A MAC address beginning with 00:20:E4, 00:30:21, or 00:D0:09 identifies hardware built or badged by Hsing Tech Enterprise Co., Ltd. (also styled Hsing Tech. Enterprise Co., Ltd.), a Taiwan-based electronics manufacturer holding all three IEEE MA-L blocks. No specific device model, driver package, or teardown ties these prefixes to a named product, so the identification is confirmed at the company level but unconfirmed at the device level.

Taiwan business-directory records place the company in Taipei, founded in 1987 with registered capital of NT$100,000,000, classified under computer peripherals and electronic parts. That industry classification is consistent with legacy Ethernet networking hardware from the late 1990s, the era in which this class of MA-L block was typically issued, though no product documentation confirms a specific networking device.

Three independent OUI assignments under one legal entity, plus a matching business-directory profile, are what separate this entry from a bare single-OUI shell registration. IEEE's public the IEEE MA-L registry carries no assignment date for any of the three blocks; third-party aggregators showing a "registered 2000"-style date are database-scrape artifacts, not IEEE facts, and should not be presented as such.

IEEE assignment

3 prefixes → Hsing Tech Enterprise Co., Ltd. (name styling varies: "HSING TECH. ENTERPRISE CO.,LTD" / "HSING TECH. ENTERPRISE CO. LTD" / "HSING TECH ENTERPRISE CO., LTD"), registered Taipei, Taiwan (TW) [Confirmed] — IEEE OUI registry (the IEEE MA-L registry)

Registry / block size

MA-L (24-bit OUI, 48-bit MAC allocation); holds 3 IEEE prefixes: 00:20:E4, 00:30:21, 00:D0:09 [Confirmed] — IEEE OUI registry

HQ / country

Taipei, Taiwan (TW); registry addresses differ slightly per block ("2F, NO. 22, ALLEY 38, LANE 91" and "NO. 2, LANE 128, SEC. 2"), both consistent with the same Taipei district [Confirmed] — IEEE OUI registry

Company status

Likely active — founded 1987, registered capital NT$100,000,000, per Taiwan business directory; not cross-checked against a second official business registry [Likely] — business.com.tw company profile

Device types

Unknown at product level. Industry classification ("computer peripheral, electronic parts") is consistent with legacy Ethernet NIC/networking OEM hardware from the era these MA-L blocks were issued, but no specific model or device documentation was found

[Unknown] — business.com.tw, D&B company profile

Notable products

Unknown — no product, driver package, or teardown documentation found in public search [Unknown]

Verified sample prefixes

00:20:E4, 00:30:21, 00:D0:09 (all MA-L, Hsing Tech Enterprise Co., Ltd.) [Confirmed] — IEEE OUI registry

Registration dates

Unknown as an IEEE fact. IEEE's public the IEEE MA-L registry (columns: Registry, Assignment, Organization Name, Organization Address) publishes no assignment/registration date. Third-party aggregators (maclookup.app, hwaddress.com) show a "registered 09 November 2000 / updated 17 November 2015"-style date; this is a database-scrape artifact, not an IEEE-published fact

[Confirmed caveat] — maclookup.app, hwaddress.com

IANA reference

Not applicable — OUI registrations are administered by IEEE, not IANA; no RFC reference exists for this entry [Unknown/N.A.]

Security note

No CVEs, malware, or botnet reporting found associated with this vendor or its OUI prefixes in web search; absence of findings is not a confirmed clean bill [Unknown]

Related vendors

None identified

Analyst note

Three independent OUI assignments under one legal entity, plus a matching business-directory record (founding year, capital, address, industry classification), clear this entry of the "bare single-OUI shell" threshold for enrichment. Device/product-level corroboration remains unconfirmed — treat identification as company-level Confirmed, device-level Unknown.