MAC Address Lookup

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


National Datacast, Inc.

OUI: 00:21:57

Vendor name: National Datacast, Inc.


2100 Crystal Drive
Suite 750
Arlington VA 22202

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: 25 October 2008

MAC Address Vendor Country US map