ABB SpA - DIN Rail MAC Prefix: Vendor Identified, Device Unknown
Summary
- // what this is
- ABB SpA - DIN Rail is registered to MAC prefix
4C:BC:B4in the IEEE OUI database. When a device's MAC address begins with4C:BC:B4, that block was registered by ABB SpA - DIN Rail — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- RFC 7042 describes the Group and Local bits for MAC identifiers. For this exact prefix, both are fixed at zero; changing either bit yields a different prefix.
About this vendor.
The MAC prefix 4C:BC:B4 is listed in the IEEE MA-L registry under ABB SpA - DIN Rail. Device category and product are Unknown.
This is a 24-bit prefix, leaving 24 bits for suffix values: 16,777,216 possible values within the block. That number describes address space, not a count of devices, shipments, or observed addresses. The exact prefix match establishes the registry assignment only; it does not establish who deployed a matching address, its prevalence, or its safety.
For this prefix, the first-byte Group and Local bits are both zero. The matching boundary is the first 24 bits (4C:BC:B4); the remaining 24 bits may vary. Changing either fixed first-byte bit produces a different prefix, rather than a variation within this assignment. RFC 7042 describes the Group bit as distinguishing group from individual addresses. These bit interpretations do not establish deployment or device identity.
- Company
- ABB SpA - DIN Rail [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
4C:BC:B4[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Products and industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website, organization status, related vendors, and historic prefix
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv