ABOUT COMPUTING INC. MAC Prefix: Device Identity Unknown
Summary
- // what this is
- About Computing is registered to MAC prefix
00:C0:F8in the IEEE OUI database. When a device's MAC address begins with00:C0:F8, that block was registered by About Computing — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A match identifies the MA-L registry assignment. The fixed first 24 bits are 00:C0:F8; the Group and Local bits in the first byte are both zero. The remaining 24 bits permit 16,777,216 suffix values, not a device or shipment count. RFC 7042 describes 48-bit MAC identifiers and these bit meanings.
About this vendor.
A MAC address beginning with 00:C0:F8 matches an IEEE MA-L assignment to ABOUT COMPUTING INC.; the supplied records do not identify a device category or product using this prefix. The assignment identifies a registry holder, not a particular device, deployment, or current corporate identity.
This 24-bit prefix fixes the first three octets of a 48-bit MAC address. The remaining 24 bits allow 16,777,216 possible suffix values; that is a mathematical address space, not a count of devices or shipments. For this exact prefix, the first-byte Group and Local bits are both zero. Changing either bit changes the prefix, rather than describing variation within this fixed assignment.
When investigating a captured address, compare its first 24 bits with 00:C0:F8. A match supports identifying the IEEE assignment only. Assignment dates are unavailable in these IEEE CSV records. RFC 7042 explains the structure of 48-bit MAC identifiers and the significance of the Group and Local bits.
- Device class
- Unknown; no supplied evidence maps a device category to this prefix.
- Assignment
00:C0:F8(MA-L), matching the first 24 bits of a 48-bit MAC address.- Interpretation
- Group bit 0 and Local bit 0 are fixed for this exact prefix; 24 suffix bits yield 16,777,216 possible values.
- Company
- ABOUT COMPUTING INC. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefixes
00:C0:F8[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Total prefix count
- 1 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- US [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment dates
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv