Extreme Networks, Inc.

Any device whose MAC address begins with AC:7F:8D has a network interface built by Extreme Networks, Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

AC:7F:8D

Organization

Extreme Networks, Inc.

Address

2121 RDU Center Drive Morrisville NC US 27560

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.