MAC address vendor

JAI Manufacturing (JAI A/S) — 2 prefixes (MA-L)

Primary prefix
00:0C:DF
Block
MA-L
Status
Active

Summary

// what this is
JAI Manufacturing is registered to MAC prefix 00:0C:DF and 1 more in the IEEE OUI database. When a device's MAC address begins with 00:0C:DF, that block was registered by JAI Manufacturing — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
Both OUIs (00:0C:DF, D4:1F:0C) are dedicated blocks assigned solely to JAI Manufacturing, not slices of a shared IEEE base, so a MAC in either range is JAI-manufactured hardware — most plausibly a JAI machine-vision camera or related networked imaging device.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High

A MAC address beginning with 00:0C:DF or D4:1F:0C belongs to JAI Manufacturing, the IEEE-registered name behind JAI A/S, a Danish industrial machine-vision camera maker. Hardware carrying either prefix is most plausibly a JAI area-scan, line-scan, or multispectral camera, or another networked imaging device from the company's product line.

Both prefixes are dedicated MA-L blocks, not slices of a shared IEEE base — each is registered solely to JAI Manufacturing at the same postal address in Kushima, Miyazaki, Japan. That address matches an active office listed on JAI's own corporate website, corroborating the OUI registrant as JAI's operating entity rather than an unrelated namesake.

JAI A/S was founded in Denmark in 1963 and has since built a 60-plus-year history in industrial vision, including a founding role in the GigE Vision standard for Ethernet-based camera control and image streaming. The company's cameras serve factory automation, food inspection, semiconductor inspection, life sciences, intelligent traffic systems, and medical or defense imaging.

No JAI-specific CVE, security advisory, or malware/botnet association was found in searches conducted in an August 2026 search. General industry commentary flags weak authentication as a common IP-camera risk class, and GigE Vision typically runs control and streaming over unauthenticated UDP by design — but neither observation is a JAI-specific finding.

IEEE assignment
00:0C:DF, D4:1F:0C → "JAI Manufacturing", registered 2960-14 Uenojo Nishikata Kushima Miyazaki JP 888-0004 [Confirmed] — the IEEE MA-L registry 000CDF, D41F0C
Registry / block size
MA-L (24-bit OUI); 2 dedicated prefixes; no MA-M or MA-S sub-allocations found for JAI Manufacturing [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry
HQ / country
2960-14 Uenojo Nishikata, Kushima, Miyazaki 888-0004, JP (registry address; matches an active JAI office listing) [Confirmed] — https://www.jai.com/contact/office-locations/
Company status
active [Confirmed] — https://www.jai.com/company/about-jai, https://news.jai.com/jai-celebrates-60-years-of-innovation-in-the-machine-vision-industry
Device types
industrial area-scan, line-scan, multispectral, and infrared machine-vision cameras [Likely] — https://www.jai.com/company/about-jai
Notable products
GigE Vision-compliant industrial cameras (JAI is a founding member of the GigE Vision standard) [Likely] — https://en.wikipedia.org/wiki/GigE_Vision
Verified sample prefixes
00:0C:DF, D4:1F:0C (both MA-L, "JAI Manufacturing", same registered address, dedicated blocks not shared IEEE bases) [Confirmed] — the IEEE MA-L registry 000CDF, D41F0C
Third-party date caveat
maclookup.app lists "initially registered" dates for both prefixes (11 Apr 2003 for 00:0C:DF; 21 Feb 2010 for D4:1F:0C); IEEE's the IEEE MA-L registry publishes no assignment date, so these are third-party database artifacts, not IEEE facts
[Confirmed] — https://maclookup.app/search/result?mac=000CDF, https://maclookup.app/search/result?mac=D41F0C
Security note
no JAI-specific CVE, advisory, or malware/botnet association found as of an August 2026 search [Confirmed negative finding] — web search, no citable source found
Related vendors
none independently verified under a separate OUI registration [Unknown]
Analyst note
a MAC in either 00:0C:DF or D4:1F:0C is JAI-manufactured hardware, most plausibly a JAI machine-vision camera or related networked imaging device — both prefixes are dedicated blocks, not slices of a shared IEEE base
[Likely] — the IEEE MA-L registry 000CDF, D41F0C; https://www.jai.com/contact/office-locations/
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:0C:DFMA-L
  2. D4:1F:0CMA-L
[ 03 ] — Related

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