A-TRUST COMPUTER CORPORATION — MAC prefix identification
Summary
- // what this is
- A-Trust Computer is registered to MAC prefix
00:1F:D8in the IEEE OUI database. When a device's MAC address begins with00:1F:D8, that block was registered by A-Trust Computer — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- A prefix match identifies the registry assignment only; it does not establish a particular device, product, current legal identity, deployment, or security state. The 24-bit assignment leaves 24 suffix bits (16,777,216 possible values), which is not a device or shipment count. Group bit 0 and Local bit 0 are fixed for this exact prefix; changing either bit yields a different prefix.
About this vendor.
A MAC address beginning with 00:1F:D8 matches an IEEE MA-L assignment to A-TRUST COMPUTER CORPORATION. That identifies the registered prefix holder; it does not establish the device maker, device type, product, current company identity, or safety of a device using the address.
The assignment is 24 bits long, leaving 24 bits for suffix values. This allows 16,777,216 possible suffix values within the block, not evidence of that many devices or shipments. For this exact prefix, the first-byte Group bit and Local bit are both zero. Changing either bit produces a different prefix, so interpret these bits at the captured prefix boundary rather than as variation within this assignment.
RFC 7042 describes 48-bit MAC identifiers as an initial OUI or longer assigned prefix followed by the remaining bits. The available material does not identify products or device categories for this assignment. Assignment dates are unavailable in these IEEE CSV records.
- Matching prefix
00:1F:D8(24-bit MA-L) [Confirmed]
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Company
- A-TRUST COMPUTER CORPORATION [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:1F:D8[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- Unknown [Unknown]
- Device category
- Unknown [Unknown]
- Assignment date
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv