MAC address vendor

Z-COM, Inc. — 2 prefixes (MA-L)

Primary prefix
00:19:70
Block
MA-L
Status
Active

Summary

// what this is
Z-COM is registered to MAC prefix 00:19:70 and 1 more in the IEEE OUI database. When a device's MAC address begins with 00:19:70, that block was registered by Z-COM — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Substantive, identifiable manufacturer (Taiwan OTC-listed, FCC filings, active web/social presence) — not a bare-shell OUI registration.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium-High

Z-COM, Inc. is a Taiwanese wireless networking manufacturer headquartered in Hsinchu, founded in 1995 and listed on Taiwan's OTC exchange since 2013, with roughly 700 employees. The registry holds two separate MA-L OUI blocks under the org name — recorded as "Z-Com, Inc." (00:19:70) and "Z-COM, INC." (00:60:B3) — both at the same street address, differing only in that one record carries a trailing postal code and the other does not; these are treated as one vendor rather than a case-sensitivity or typo artifact. Two other Z-COM-adjacent registry entries were deliberately excluded from this entry: 30:49:3B ("Nanjing Z-Com Wireless Co.,Ltd") and 34:ED:0B ("Shanghai XZ-COM.CO.,Ltd."), both distinct legal entities that belong under their own vendor slugs, not folded into this one. Independent corroboration beyond the bare IEEE registration comes from Z-COM's own product site, multiple FCC grantee-code filings under M4Y for wireless access points, bridges, and OEM embedded modules, and active company social profiles — establishing this as a substantive, identifiable manufacturer rather than a shell registration. No security-advisory history specific to Z-COM branded hardware was found in this pass, which is recorded as an honest abstention rather than a clean-record claim.

IEEE assignment
2 prefixes → "Z-Com, Inc." / "Z-COM, INC." (org-name casing varies by record), Hsinchu, Taiwan [Confirmed] — the IEEE MA-L registry lines 28631, 29933 (cached IEEE MA-L registry)
Registry / block size
MA-L (24-bit OUI) x2 — 00:19:70, 00:60:B3 [Confirmed] — the IEEE MA-L registry lines 28631, 29933
HQ / country
7F-2, No.9, Prosperity 1st Rd., Hsinchu, Taiwan 300 (registry address on 00:19:70; 00:60:B3 record omits the zip) [Confirmed] — the IEEE MA-L registry lines 28631, 29933
Company status
active, Taiwan OTC-listed since 2013, founded 1995, ~700 employees [Confirmed] — https://www.zcom.com.tw/
Device types
WLAN controllers, indoor/outdoor access points, wireless bridges/CPE, OEM embedded modules (mini-PCI, CompactFlash), industrial cellular gateways [Confirmed for product categories] — https://www.zcom.com.tw/, https://fccid.io/M4Y
FCC grantee corroboration
grantee code M4Y, multiple product filings (e.g. M4Y-XG-623, M4Y-ZAC1023513, M4Y-0835C) [Confirmed] — https://fccid.io/M4Y
Verified sample prefixes
00:19:70, 00:60:B3 (both MA-L) [Confirmed] — the IEEE MA-L registry lines 28631, 29933
Excluded lookalikes (NOT this vendor, separate slugs)
30:49:3B "Nanjing Z-Com Wireless Co.,Ltd", 34:ED:0B "Shanghai XZ-COM.CO.,Ltd." [Confirmed distinct entities] — the IEEE MA-L registry lines 4194, 34458
MA-M / MA-S check
no MA-M or MA-S registrations found for Z-Com/Z-COM [Confirmed absence] — the IEEE MA-M registry, the IEEE MA-S registry
Registration dates
not published by IEEE for either prefix — left null, not fabricated; any third-party "date registered" would be a database-scrape artifact, not an IEEE fact [Confirmed absence] — the IEEE MA-L registry (no date column)
IANA reference
not applicable / blank — no IANA-reference field exists for OUI/MA-L entries [Confirmed]
Security context
Unknown — no CVE or public advisory specifically attributable to Z-COM Inc. (Taiwan) branded products found in this single-pass search; not an exhaustive per-model lookup, treated as honest abstention rather than a clean-record claim [Unknown]
Related vendors
none merged in; Nanjing Z-Com Wireless and Shanghai XZ-COM are distinct companies with their own OUI blocks and would need separate entries [Confirmed]
Analyst note
multi-OUI vendor with verifiable company substance (active website, FCC filings, social presence) beyond the bare IEEE registration — does not meet the shell-abstention bar.
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:19:70MA-L
  2. 00:60:B3MA-L
[ 03 ] — Related

Keep digging.