A2 CORPORATION MAC Prefix 00:10:43 — Vendor Identified, Device Unknown
Summary
- // what this is
- A2 is registered to MAC prefix
00:10:43in the IEEE OUI database. When a device's MAC address begins with00:10:43, that block was registered by A2 — the OUI identifies the maker of the network hardware, which is not always the brand on the device. - // analyst note
- An exact match identifies consistency with this MA-L assignment only. The prefix fixes the Group and Local bits at 0 and 0, with 24 suffix bits and 16,777,216 possible suffix values; this is not a device or shipment count. A captured address does not establish a particular device or its security state.
About this vendor.
A MAC address beginning 00:10:43 matches an IEEE MA-L assignment to A2 CORPORATION; the assignment alone does not identify a device type or prove which vendor made the device. The supplied record supports the legal name and one 24-bit prefix, but provides no company product, industry, or device-category information.
The prefix fixes the first 24 bits of a 48-bit MAC identifier, leaving 24 bits for the suffix. That permits 16,777,216 possible suffix values; it is a mathematical address space, not a count of devices, shipments, or active addresses. A captured match establishes consistency with the registry prefix only.
The first octet 00 has Group bit 0 and Local bit 0. These bits are fixed for an exact literal prefix match. Changing either bit changes the prefix, rather than describing variation within 00:10:43. RFC 7042 explains the roles of these bits in MAC identifiers and the structure of 48-bit identifiers.
- Matching prefix
00:10:43(24 bits; MA-L) [Confirmed]- Assignment date
- Unavailable in the displayed IEEE CSV record [Confirmed]
- Company
- A2 CORPORATION [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Registry
- MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Prefix
00:10:43[Confirmed] — https://standards-oui.ieee.org/oui/oui.csv- Country
- JP, as indicated in the retrieved registry record [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
- Device types
- Unknown [Unknown]
- Notable products
- Unknown [Unknown]
- Industry
- Unknown [Unknown]
- Website
- Unknown [Unknown]
- Organization status
- Unknown [Unknown]
- Related vendors
- Unknown [Unknown]
- Historic prefix
- Unknown [Unknown]
- Assignment dates are unavailable in these IEEE CSV records. [Confirmed] — https
- //standards-oui.ieee.org/oui/oui.csv
- Group and Local bit interpretation and 48-bit identifier structure [Confirmed] — https
- //www.rfc-editor.org/rfc/rfc7042.txt