Belden Singapore Pte. Ltd.

Any device whose MAC address begins with 30:CB:36 has a network interface built by Belden Singapore Pte. Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

30:CB:36

Organization

Belden Singapore Pte. Ltd.

Address

151 Lorong Chuan #05-01 New Tech Park Singapore Singapore SG 556741

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.