MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Microsoft Corporation
MAC address prefix 20:A9:9B is registered to Microsoft Corporation, located at 1 Microsoft WayRedmond Washington 98052FI.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 27 May 2014, with the most recent update made on 17 November 2015.
OUI: 20:A9:9B
Vendor name: Microsoft Corporation
Address:
Assignment Type MA-L 1 Microsoft Way
Redmond Washington 98052
FI.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 27 May 2014
