MAC Address Lookup

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

 MAC

MICROUNITY SYSTEMS ENGINEERING

OUI prefix: 00:40:A3

Vendor name: MICROUNITY SYSTEMS ENGINEERING

Address:

255 CASPIAN DRIVE
SUNNYVALE CA 94089-1015
US.

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: 09 November 2000

MAC Address Vendor Country US map