MAC Address Lookup

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


Internet Energy Systems, Inc.

OUI: 00:03:D3

Vendor name: Internet Energy Systems, Inc.


4218 Trumbo Ct.
Fairfax VA 22033

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: 09 November 2000

MAC Address Vendor Country US map