MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Juniper Networks
OUI: 40:9E:A4
Vendor name: Juniper Networks
Address:
Assignment Type MA-L 1133 Innovation Way
Sunnyvale CA 94089
US.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Initial registration: 20 September 2023