MAC Address Vendor Lookup
Resolve any MAC address to its registered manufacturer, or search a vendor name to list every prefix the IEEE assigned to it. 59,086 records; data is updated by the scheduled IEEE sync.
Supports MA-L (24-bit), MA-M (28-bit) and MA-S (36-bit) blocks with longest-prefix matching.
Try: 00:00:0C:11:22:33 · F0:D1:A9:AA:BB:CC · B8:27:EB:01:02:03 · 02:1A:2F:3B:4C:5D (randomized)
Partial names work. Results are ranked by closest match.
Why MACProbe
Built by network engineers for triage, inventory and audit work.
Longest-prefix correct
Most tools only check 24 bits. MACProbe resolves MA-S (36-bit) and MA-M (28-bit) blocks first, so small IoT vendors aren't misattributed.
Daily IEEE sync
A scheduled job pulls the public IEEE Registration Authority CSV listings and upserts changes — no stale vendor names.
Flag decoding
Every lookup reports unicast/multicast, UAA/LAA, broadcast, randomization and the EUI-64 interface identifier.
Honest API
Clean JSON, quota headers on every response, bulk endpoint on paid plans, and clear plan limits.
From the knowledge base
Basics through to EUI-64, randomization and switching security.
Need this in your scripts?
One GET request returns vendor, registry block, country and address.
curl "https://macprobe.com/api/v1/lookup?mac=00:1A:2F:3B:4C:5D"