12Sided Technology, LLC: MAC Prefix Identifies a Registry Assignment
Summary
- // what this is
- 12Sided Technology is registered to MAC prefix
A8:5E:E4in the IEEE OUI database. When a device's MAC address begins withA8:5E:E4, that block was registered by 12Sided Technology — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- The supplied IEEE record supports the legal registrant, MA-L registry, prefix, and country indication in its address. RFC 7042 describes 48-bit MAC identifiers and the Group and Local bits.
About this vendor.
A MAC address beginning A8:5E:E4 identifies an IEEE MA-L assignment registered to 12Sided Technology, LLC; the supplied records do not identify a device type or product using it.
The assignment covers the first 24 bits of a 48-bit MAC address. A matching address therefore shares this prefix and has 24 remaining bits, allowing 16,777,216 possible suffix values. That is a mathematical range, not a count of devices, shipments, or observed addresses.
For this prefix, the first octet is A8 (hexadecimal). Its Group bit and Local bit are both zero. RFC 7042 identifies these as special-significance bits in the initial octet and names their positions; it also states that OUI and longer MAC prefixes are assigned with the Local bit zero and the Group bit unspecified. The assignment alone does not establish deployment, prevalence, current vendor identity, or safety.
The IEEE CSV record gives no assignment date. Assignment dates are unavailable in these IEEE CSV records.
- Company
- 12Sided Technology, LLC [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
A8:5E:E4(/24) [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- United States [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv