MAC Address Lookup
Find the vendor name of a device by entering an OUI or a MAC address
ISDN SYSTEMS CORPORATION
MAC address prefix 00:20:69 is registered to ISDN SYSTEMS CORPORATION, located at 8320 OLD COURTHOUSE RD.VIENNA VA 22182US.
This registration is classified as MA-L (Mac Address Block Large) containing approximately 16 million MAC addresses
The prefix was initially registered on 22 April 1998, with the most recent update made on 17 November 2015.
OUI: 00:20:69
Vendor name: ISDN SYSTEMS CORPORATION
Address:
Assignment Type MA-L 8320 OLD COURTHOUSE RD.
VIENNA VA 22182
US.
Mac Address Block Large (previously named OUI). Number of address 2^24 (~16 Million)
Last updated: 17 November 2015
Initial registration: 22 April 1998
