AddOn Computer MAC Prefix 44:D5:A5: Vendor Unknown
Summary
- // what this is
- AddOn Computer is registered to MAC prefix
44:D5:A5in the IEEE OUI database. When a device's MAC address begins with44:D5:A5, that block was registered by AddOn Computer — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A match on 44:D5:A5 identifies an address within this 24-bit MA-L prefix. The first-octet Group and Local bits are both zero; changing either produces a different prefix. There are 16,777,216 possible 24-bit suffix values, which is not a device or shipment count. A prefix match does not identify a specific device, product, current legal identity, or security state.
About this vendor.
A MAC address beginning with 44:D5:A5 matches an IEEE MA-L assignment to AddOn Computer; the supplied evidence does not identify a device or vendor product for that address. The registry record names the assignee, but by itself it does not establish which equipment uses the prefix or whether any observed address is deployed by that company.
This is a 24-bit prefix, leaving 24 bits for suffix values—16,777,216 possible values. That is a mathematical address-space count, not a count of devices, shipments, or addresses in use. Under RFC 7042, the first-octet Group and Local bits have special significance. For 44, both are zero, so this exact prefix has the individual and globally administered bit pattern. Changing either bit changes the prefix; it does not describe variation within this assignment.
For identification, compare the first three bytes of the captured MAC address with 44:D5:A5. A match supports only that the address falls under this registry prefix. The supplied records provide no assignment date or product mapping.
- Device or product
- Unknown; no device category or product is mapped to this prefix in the supplied records [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix match
44:D5:A5matches the first 24 bits of the address [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- AddOn Computer [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Country
- US [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Industry
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Notable products
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Website
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Organization status
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv