Look up MAC address vendors instantly using the IEEE OUI database. Identify device manufacturers from any MAC format.
MAC Address Lookup
Look up MAC address vendors instantly using the IEEE OUI database. Identify device manufacturers from any MAC format.
MAC Address Search
MAC Address Lookup
Vendor Information
No Vendor Lookup
Enter a MAC address and click "Lookup Vendor" to see manufacturer details.
MAC Address Lookup Tips
- • OUI Database: First 3 bytes identify the manufacturer (Organizationally Unique Identifier)
- • Format Flexibility: Enter MAC in any format - colon, hyphen, dot notation, or plain hex
- • Vendor Detection: Instantly identify device manufacturer from network adapters
- • Address Analysis: See unicast/multicast type and local/universal administration
- • Network Troubleshooting: Perfect for identifying devices on your network
Paste any MAC format — it figures out the notation and strips the separators itself
You're usually coming from an ARP table, a switch log, or a DHCP lease file, and the MAC is in whatever format that device decided to use. Colon-separated, hyphen-separated, Cisco dot notation, or just 12 hex characters with no separator — all of them work. The lookup extracts the first six hex digits, checks them against the built-in IEEE OUI table, and returns the vendor name and country. If the address is from a phone or a laptop with MAC randomisation turned on, the OUI won't match anything in the registry. That's not a bug — the Administration field in the result will tell you it's locally administered rather than universally administered, which is the giveaway that it's a randomised address.
The Available Formats section saves a separate conversion step
Below the vendor result there's a panel that shows your input address written in all five standard notations at the same time: IEEE colon, Windows hyphen, Cisco dot-grouped, Linux lowercase colon, and plain uppercase hex. This comes up more than you'd think — you pull a MAC from one system in one format and need to put it into another system that expects a different format. Rather than going to a separate converter, it's just there. The copy button next to each line picks up exactly that notation, nothing extra.