MAC Address Lookup

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


IBM Corporation

OUI: 74:99:75

Vendor name: IBM Corporation


4400 North First Street
San Jose CA 95134

Assignment Type MA-L

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

Last updated: 17 November 2015

Initial registration: 14 June 2012

MAC Address Vendor Country US map