SJI Industry Company MAC prefixes: vendor identified; device unknown
Summary
- // what this is
- SJI Industry is registered to MAC prefix
BC:10:2Fand 1 more in the IEEE OUI database. When a device's MAC address begins withBC:10:2F, that block was registered by SJI Industry — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- Each listed MA-L prefix is 24 bits, leaving 24 bits (16,777,216 possible suffix values) per prefix. Both have Group and Local bits set to 0 in the first octet. Changing either bit creates a different prefix; suffix-value capacity is not a device count. A match indicates the registry assignment, not a particular device or product.
About this vendor.
A MAC address beginning with BC:10:2F or 50:FD:D5 matches an IEEE MA-L assignment to SJI Industry Company. The records do not identify a device category or product associated with either prefix, so a matching address identifies the registry assignment rather than a specific device or product.
Each prefix fixes the first 24 bits of a 48-bit MAC address; the remaining 24 bits allow 16,777,216 possible suffix values per prefix. That is a count of possible values, not a device or shipment count. In both listed prefixes, the first octet has Group bit 0 and Local bit 0. Setting either bit would change the prefix and would no longer be an exact match to the listed assignment.
RFC 7042 explains that MAC identifiers use an initial organization prefix followed by additional bits, and that the Group and Local bits have special significance. A captured exact match supports attribution to the listed assignment, but does not establish the device, operator, traffic prevalence, or security state.
- Matching prefixes
BC:10:2Fand50:FD:D5[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- SJI Industry Company [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
BC:10:2F,50:FD:D5[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- South Korea [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown]
- Notable products
- Unknown [Unknown]
- Industry
- Unknown [Unknown]
- Organization status
- Unknown [Unknown]
- Website
- Unknown [Unknown]
- Related vendors
- Unknown [Unknown]