Calix Inc.

Any device whose MAC address begins with CC:BE:59 has a network interface built by Calix 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

CC:BE:59

Organization

Calix Inc.

Address

2777 Orchard Pkwy San Jose CA US 95131

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.