ATW Technology, Inc. — 4 prefixes (MA-L)

A MAC address starting with D4:01:45, DC:8D:B7, A8:E8:1E, or 14:C2:4D belongs to ATW Technology, Inc., a Taiwan-registered company holding four separate IEEE MA-L OUI registrations. The device type or product category these prefixes appear on is not publicly documented — no company website, FCC filing, or product listing surfaced during this research pass, so any downstream device classification should be treated as Unknown rather than assumed.

All four prefixes register to the identical address — 1F, No.236 Ba'ai Street, Shulin District, New Taipei City, TW 23845 — indicating one operating entity rather than several unrelated companies sharing a name. Holding four separate MA-L blocks (each covering roughly 16.7 million addresses) is a meaningfully larger footprint than a bare single-OUI shell registration, which is the basis for treating this vendor as having verifiable substance despite the missing public-facing details.

Third-party lookup services (e.g. maclookup.app) list per-prefix "registered" dates spanning 2020-2025 for these four blocks. IEEE's own OUI registry publishes no assignment or registration date for any MA-L entry — only Registry Class, Assignment, Organization Name, and Address — so those third-party dates are database-ingestion artifacts, not IEEE facts. They are cited here only as circumstantial evidence the registrant has kept acquiring blocks in recent years, not as authoritative dates.

No official company website could be confirmed — candidate domains atw-tech.com.tw and atwtechnology.com.tw did not resolve — and no FCC grantee-code match, Taiwan business-registry record, or product identification surfaced in this pass (findbiz.nat.gov.tw was unreachable; twincn.com returned no match). Analysts should treat device or product attribution for these OUIs as Unknown rather than inferring a device class from the company name.

IEEE assignment

4 prefixes → ATW TECHNOLOGY, INC., registered New Taipei City, TW [Confirmed] — the IEEE MA-L registry (local IEEE MA-L extract)

Registry / block size

MA-L (24-bit OUI); 4 IEEE prefixes (~66.8M addresses total) [Confirmed] — the IEEE MA-L registry

HQ / country

1F, No.236 Ba'ai Street, Shulin District, New Taipei City, TW 23845 [Confirmed] — the IEEE MA-L registry

Company status

Unknown — no company website, FCC filing, or business-registry record found [Unknown] — WebSearch/WebFetch research pass; Taiwan business registry (findbiz.nat.gov.tw) unreachable; twincn.com no match

Device types

Unknown — no product/device corroboration found in any source checked [Unknown] — WebSearch/WebFetch research pass, FCC ID grantee search (code ATW belongs to an unrelated German company)

Notable products

Unknown

Verified sample prefixes (all MA-L, ATW Technology, Inc.)

D4:01:45, DC:8D:B7, A8:E8:1E, 14:C2:4D [Confirmed] — the IEEE MA-L registry

Registration date

Not published by IEEE — the OUI registry has no assignment/registration-date field; third-party sites list dates spanning 2020-2025 for these prefixes but those are database-ingestion artifacts, not IEEE facts [Confirmed] — the IEEE MA-L registry; https://maclookup.app/vendors/atw-technology-inc (cited as non-authoritative third-party context only)

Special note

Four separate MA-L blocks registered to the same company and address is treated as sufficient substance beyond a bare single-OUI shell for finalization purposes; no device/product context or official web presence was found [Likely] — WebSearch/WebFetch research pass

Related vendors

none identified

Analyst note

An ATW Technology OUI confirms genuine ATW Technology, Inc. hardware, but the device class is unverified — do not infer a product type from the company name alone.