MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
Si2 Microsystems Limited
MAC address prefix 00:21:81 is registered to Si2 Microsystems Limited, located at No 84Sy No 150EPIPWhitefield Industrial AreaBangalore Karnataka 560066IN.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 25 October 2008, with the most recent update made on 17 November 2015.
OUI: 00:21:81
Vendor name: Si2 Microsystems Limited
Address:
Assignment Type MA-L No 84
Sy No 150
EPIP
Whitefield Industrial Area
Bangalore Karnataka 560066
IN.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 25 October 2008