Absolute Acoustics MAC prefix: device identification Unknown
Summary
- // what this is
- Absolute Acoustics is registered to MAC prefix
1C:C5:86in the IEEE OUI database. When a device's MAC address begins with1C:C5:86, that block was registered by Absolute Acoustics — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
About this vendor.
A MAC address beginning with 1C:C5:86 identifies an address in the IEEE MA-L assignment registered to Absolute Acoustics; the supplied evidence does not identify a device type or product that uses it. A prefix match supports registry attribution only, not a specific device, operating system, current company identity, or security status.
This is one 24-bit prefix, leaving 24 bits for suffix values. There are 16,777,216 possible suffix values, but that is a mathematical address-space size, not a count of devices, deployments, or shipments. For this exact prefix, the first-byte Group and Local bits are both zero. Those bits are fixed by the literal prefix; changing either bit produces a different prefix.
RFC 7042 explains that 48-bit MAC identifiers can use a three-octet OUI followed by additional bits, and describes the Group and Local bits. The supplied IEEE record has no assignment date. It gives a Brazil address, which supports country-level identification, but no street address is reproduced here.
- Device or product
- Unknown from supplied evidence [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Possible suffix values
- 16,777,216; not an observed device count [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Group and Local bits
- Both zero for this exact prefix [Confirmed] — https://www.rfc-editor.org/rfc/rfc7042.txt
- Assignment date
- Unavailable in the displayed IEEE CSV record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv