MAC Address Lookup

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

 MAC

ISDN SYSTEMS CORPORATION

OUI: 00:20:69

Vendor name: ISDN SYSTEMS CORPORATION

Address:

8320 OLD COURTHOUSE RD.
VIENNA VA 22182
US.

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: 22 April 1998

MAC Address Vendor Country US map