ADASTRA SYSTEMS CORP. MAC Prefix 00:20:0C — Device Unknown
Summary
- // what this is
- Adastra Systems is registered to MAC prefix
00:20:0Cin the IEEE OUI database. When a device's MAC address begins with00:20:0C, that block was registered by Adastra Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact match to this 24-bit prefix fixes the first-byte Group bit and Local bit at 0. The remaining 24 bits allow 16,777,216 possible suffix values; this is not an observed device or shipment count.
About this vendor.
A MAC address beginning 00:20:0C matches the IEEE MA-L assignment to ADASTRA SYSTEMS CORP.; the available evidence does not identify a device type or product using it.
The prefix is 24 bits of a 48-bit MAC address, leaving 24 bits for the suffix. That permits 16,777,216 possible suffix values, a mathematical range rather than a count of devices, shipments, or observed addresses.
For this exact prefix, the first-byte Group and Local bits are both zero. The Group bit is the low-order bit of the first octet, and the Local bit is the next-lowest bit. Changing either bit changes the prefix and no longer matches this exact assignment. A match therefore indicates a registry assignment, not a particular device, current vendor identity, traffic prevalence, or safety.
- Device type
- Unknown; no device category is mapped to this exact prefix in the supplied evidence. [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Matching prefix
00:20:0C(24-bit MA-L assignment). [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Interpretation
- Exact prefix fixes Group bit 0 and Local bit 0; a MAC match does not identify a device or its use. [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt