MAC Address Lookup

Find the vendor name of a device by entering an OUI or a MAC address


Extreme Networks, Inc.

OUI: E4:44:E5

Vendor name: Extreme Networks, Inc.


6480 Via Del Oro
San Jose CA 95119

Assignment Type MA-L

Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)

Initial registration: 21 July 2021

MAC Address Vendor Country US map