78:02:8F identifies an ASSIA registry assignment; device type is unknown
Summary
- // what this is
- Adaptive Spectrum and Signal Alignment is registered to MAC prefix
78:02:8Fin the IEEE OUI database. When a device's MAC address begins with78:02:8F, that block was registered by Adaptive Spectrum and Signal Alignment — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The exact 24-bit prefix fixes both first-octet Group and Local bits to 0.0. The prefix match leaves 24 suffix bits (16,777,216 possible values); this is not a device or shipment count.
About this vendor.
A MAC address beginning 78:02:8F matches the IEEE MA-L assignment to Adaptive Spectrum and Signal Alignment (ASSIA), Inc.; the record does not identify a device category or model. A prefix match establishes the registry assignment only, not the device’s current vendor, deployment, prevalence, or safety.
This is a 24-bit prefix in a 48-bit MAC address, leaving 24 bits for suffix values. The projection gives 16,777,216 possible suffix values, a mathematical range rather than a count of devices or shipments. The Group and Local bits in the first octet 78 are both zero. The assignment prefix has those bits fixed; changing either bit produces a different prefix, not a variation within this exact assignment.
RFC 7042 describes 48-bit MAC identifiers as an assigned initial prefix followed by remaining bits, and explains the Group and Local bits. For identification, compare the first three octets exactly. The available record contains no assignment date, product mapping, or device classification.
- Matching prefix
78:02:8F(MA-L; 24 bits) [Confirmed]- Device or product
- Unknown; the assignment record does not map the prefix to a device category or product. [Unknown]
- Company
- Adaptive Spectrum and Signal Alignment (ASSIA), Inc. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
78:02:8F(MA-L) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Device type
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
- Assignment date
- Unavailable in the displayed IEEE CSV record [Unknown] — https://standards-oui.ieee.org/oui/oui.csv