MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
National Datacast, Inc.
MAC address prefix 00:21:57 is registered to National Datacast, Inc., located at 2100 Crystal DriveSuite 750Arlington VA 22202US.
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: 00:21:57
Vendor name: National Datacast, Inc.
Address:
Assignment Type MA-L 2100 Crystal Drive
Suite 750
Arlington VA 22202
US.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 25 October 2008
