3isysnetworks — CC:F5:38 (MA-L)

3isysnetworks holds a single IEEE MA-L block, CC:F5:38, registered under the org name "3isysnetworks" with the address 11F-2, No. 1247 Jung Jeng Road, Taipei, Taiwan — the sole registry hit for this name across the local MA-L, MA-M, and MA-S snapshots, with no larger multi-block footprint. Business-data aggregators (aiHit, ZoomInfo, SignalHire, udger) independently describe a Taipei-based networking-hardware company trading as "3ISYS Networks" / 3isysnetworks.com, reportedly founded 2007, positioned as a supplier of "rugged networking components, computing solution and access connectivity solutions" distributed through partners across the Americas, Asia, Europe, and the Middle East — a description repeated closely enough across independent sources to read as genuine company copy rather than aggregator noise, and the claimed Taipei HQ is consistent with the OUI registry's own address. The company's own site could not be independently verified in this pass: http://www.3isysnetworks.com/ presented a TLS certificate issued to bizland.com (shared/parking hosting), not to the company's own domain, and no specific product datasheet, model number, or device-in-the-wild MAC corroboration was found. No security advisories or abuse reports surfaced for this prefix. Net assessment: an identifiable small hardware vendor with a plausible product line, but thinly and only third-party corroborated — not a bare shell registration, yet short of strong primary-source confirmation.

Org name / registrant

"3isysnetworks" [Confirmed] — the IEEE MA-L registry

OUI prefix / registry class

CC:F5:38, MA-L (24-bit block) [Confirmed] — the IEEE MA-L registry

Registered address (verbatim registry text, including the source's own "TW 0000" placeholder)

11F-2 No1247, Jung Jeng RD, Taipei Taiwan TW 0000 [Confirmed] — the IEEE MA-L registry

Block count

single MA-L block only; no MA-M or MA-S sub-block found under this org name in the local registry snapshots [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (no additional hits)

Wireshark the Wireshark manufacturer database corroboration

CC:F5:38 short name "3isysnetwork", long name "3isysnetworks" [Confirmed] — the Wireshark manufacturer database

Registration/assignment date

Unknown — IEEE's MA-L registry publishes no assignment date field; not fabricated [Confirmed absence]

Company identity

"3ISYS Networks" / 3isysnetworks.com, Taipei, Taiwan; reported founded 2007 [Likely] — https://www.aihitdata.com/company/0092D6EE/www-3isysnetworks-com/overview

Business category

self-described/aggregator-described as a supplier of "rugged networking components, computing solution and access connectivity solutions," repeated across independent sources [Likely] — https://www.zoominfo.com/c/3isys-networks/402813616, https://www.signalhire.com/companies/3isysnetworks, https://udger.com/resources/mac-address-vendor-detail?name=3isysnetworks

Primary website status

not independently verifiable — http://www.3isysnetworks.com/ presented a TLS certificate issued to bizland.com (shared/parking host), not the company's own domain [Confirmed as a negative finding] — direct fetch attempt, this pass

Product/device corroboration

no specific datasheet, model number, or device-in-the-wild MAC found; a manualzz.com listing titled "Datasheet — 3isysnetworks.com" returned HTTP 403 and was unreadable [Unknown] — https://manualzz.com/doc/41330360/datasheet---3isysnetworks.com

Security/abuse context

no advisories, CVEs, or abuse reports found for this vendor or prefix; absence of findings, not a confirmed clean record [Unknown]