UPVEL

Any device whose MAC address begins with D4:BF:7F has a network interface built by UPVEL. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D4:BF:7F

Organization

UPVEL

Address

13139 Ramona Blvd. #F Irwindale CA US 91706

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.