PCCW Global, Inc.

Any device whose MAC address begins with 1C:1E:38 has a network interface built by PCCW Global, 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

1C:1E:38

Organization

PCCW Global, Inc.

Address

475 Spring Park Pl Suite 100 Herndon VA 20170 Herndon WA US 20170

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.