Advanced Network Devices (dba:AND): MAC prefix 20:46:F9
Summary
- // what this is
- Advanced Network Devices is registered to MAC prefix
20:46:F9in the IEEE OUI database. When a device's MAC address begins with20:46:F9, that block was registered by Advanced Network Devices — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A 48-bit MAC address matching this 24-bit assignment has 24 suffix bits and 16,777,216 possible suffix values. In prefix 20:46:F9, the first-octet Group bit (bit 0x01) and Local bit (bit 0x02) are both zero. These bits are fixed for an exact literal prefix match; changing either produces a different prefix. The possible suffix count does not indicate an observed device or shipment count. RFC 7042 provides guidance on MAC identifiers and prefix interpretation.
About this vendor.
A MAC address beginning 20:46:F9 is registered to Advanced Network Devices (dba:AND); the assignment does not identify a device category or a specific product. The supplied IEEE record lists one MA-L assignment, 20:46:F9.
This 24-bit prefix leaves 24 bits for suffix values, or 16,777,216 possible values within the prefix. That is a mathematical address-space size, not a count of devices or shipments. A matching address supports identification of the registry assignment, not proof of deployment, traffic prevalence, current vendor identity, or safety.
For this prefix, the first octet 20 has Group bit 0 and Local bit 0. The exact three-octet prefix fixes those bits. RFC 7042 explains that these bits have MAC address significance; changing either bit changes the prefix and is not a variation within this fixed assignment.
- Matching prefix
20:46:F9(20:46:F9:xx:xx:xx) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- Advanced Network Devices (dba:AND) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
20:46:F9[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- US [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv