ABRegin

Interpreting a ABRegin lookup

The table lists address blocks grouped under the Wireshark short name ABRegin. The registration identifies an organisation, which may differ from the brand of the finished device. Contract manufacturing, third-party wireless modules, acquisitions and historical names can all explain that difference.

Each record includes its prefix length: MA-L uses 24 bits, MA-M 28 bits and MA-S 36 bits. Range endpoints describe the registered block, rather than proving that every address has been assigned to a device. Enter all 12 hexadecimal digits of a MAC to prefer the longest available prefix match.

Limits and troubleshooting

A match cannot identify a model, owner or physical location, or authenticate a device. Randomised, locally administered and manually changed addresses are unreliable for vendor identification. For inventory, cross-check switch MAC tables, DHCP leases and device serial numbers.

Data comes from Wireshark manuf. Check allocations with the IEEE Registration Authority.Last successful upstream sync: 2026-10-07 15:58 (UTC).

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