Network
MAC Address Lookup
Normalize a 48-bit MAC address and inspect its administration, transmission type, and a compact offline vendor hint.
About this tool
When to use it
Normalize a 48-bit MAC address and inspect its administration, transmission type, and a compact offline vendor hint.
How to use it
Paste colon, hyphen, dotted, or compact hexadecimal notation and select Inspect MAC address. Check whether the address is locally administered before interpreting a vendor hint.
Guide updated . Examples checked against this implementation.
Worked examples
An offline VMware prefix fixture
Input
0050.56c0.0008Expected output
00:50:56:C0:00:08; OUI: 00:50:56; Vendor hint: VMware; Universally administered; UnicastThis recognizes a prefix in the bundled list. It does not establish the identity of a connected device or who currently operates it.
Errors and unsupported input
Vendor hint is not present in the compact listCheck the current IEEE registry if authoritative allocation information is needed. An absent hint is not evidence that an address is invalid.
Continue this workflow
- MAC Address Generator: Generate locally administered unicast examples for configuration tests.
Questions
Frequently asked questions
Can this identify a person or track a device?
No. It inspects the supplied address string. Address reuse, virtualization, and randomization prevent that inference.