Charles Industries — 2 prefixes (MA-L)

Charles Industries, LLC holds two distinct 24-bit MA-L blocks — 00:03:02 and 00:05:5B — both registered to the same Rolling Meadows, Illinois address, confirming this is not a bare single-OUI shell registration. The company is a real, decades-old manufacturer of outside-plant telecom enclosures: pedestals, cabinets, fiber distribution hubs (CFFP), fiber interconnect terminals, walk-in cabinets (WIC), and its "Charles Universal Broadband Enclosures" (CUBE) line, with the vendor claiming over 20 million enclosures deployed. Founded in 1968 and headquartered in Schaumburg, Illinois, the company was acquired by Amphenol Corporation in April 2019 and now trades as "Charles Industries LLC, an Amphenol Co." Its documented networked product, the 360-80 Intelligent Channel Bank, ships with a settable IP address, a craft interface, and SNMP-based remote monitoring per vendor technical documentation — consistent with the OUI being used on telecom outside-plant network-management equipment rather than consumer gear. A third-party aggregator (maclookup.app) additionally lists a newer MA-S block, though that block was not independently corroborated against a first-party IEEE read in this pass and is tagged accordingly. No CVE, NVD, or CISA KEV entries were found for Charles Industries or its named products.

IEEE assignments

00:03:02 and 00:05:5B (MA-L), both → "Charles Industries", Rolling Meadows, IL, US [Confirmed] — the IEEE MA-L registry lines 15151, 23012

Registry / block size

MA-L (24-bit OUI) x2; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) blocks found under this org name in the local registry files [Confirmed] — the IEEE MA-L registry, the IEEE MA-M registry, the IEEE MA-S registry (registry-file-only search; all "charles" hits in the IEEE MA-M registry/oui36.csv belong to unrelated orgs whose address text happens to contain "Charles")

Additional MA-S block (third-party only)

8C:1F:64:AB:8 reported by maclookup.app; not independently verified against a first-party IEEE registry read in this pass (standards-oui.ieee.org returned HTTP 418 on direct fetch) [Likely] — https://maclookup.app/vendors/charles-industries

Registered address

5600 Apollo Drive, Rolling Meadows, IL 60008, US (minor formatting variant "Apollo Dr." on the second block; same address) [Confirmed] — the IEEE MA-L registry

Company identity

Charles Industries, LLC, founded 1968, HQ Schaumburg, IL; manufacturer of outside-plant telecom enclosures (pedestals, cabinets, fiber distribution hubs, CUBE broadband enclosures, walk-in cabinets); acquired by Amphenol Corporation in April 2019, now "Charles Industries LLC, an Amphenol Co." [Confirmed] — https://www.charlesindustries.com/company/about-charles-industries/, https://www.isemag.com/directory/company/14278177/charles-industries-llc-an-amphenol-co

Company status

active (Amphenol subsidiary) [Confirmed] — https://www.charlesindustries.com/

Device / product context

360-80 Intelligent Channel Bank (networked, IP-addressable, SNMP remote monitoring, PC-based NMS GUI); CUBE broadband enclosures and walk-in cabinets described as housing "active electronics" [Likely] — https://www.charlesindustries.com/wp-content/uploads/2021/04/LT360-381-S02.pdf, https://www.charlesindustries.com/wp-content/uploads/2021/04/LT360-386-C01.pdf, https://www.charlesindustries.com/products/fiber-distribution-hub-enclosures-indoor/

Date registered

Unknown / not applicable — IEEE's public OUI registry files (the IEEE MA-L registry/mam.csv/oui36.csv) publish no assignment/registration date; any "date registered" surfaced by third-party tools (e.g. maclookup.app) is a database artifact, not an IEEE fact, and is intentionally left null here [Confirmed]

Security history

no CVE, NVD, or CISA KEV entries found for Charles Industries or its named products in this pass [Unknown] — searches returned only generic database landing pages, no vendor-specific hits

Related vendors

none identified; parent company is Amphenol Corporation (acquired 2019) [Confirmed] — https://www.isemag.com/directory/company/14278177/charles-industries-llc-an-amphenol-co

Analyst note

two independently-confirmed MA-L blocks plus a documented, identifiable manufacturer with real networked products and a named 2019 acquisition together clear the "verifiable substance beyond bare IEEE registration" bar for this entry.