ERLPhase Power Technologies Ltd.

Any device whose MAC address begins with 00:21:A5 has a network interface built by ERLPhase Power Technologies 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

00:21:A5

Organization

ERLPhase Power Technologies Ltd.

Address

74 Scurfield Blvd. Winnipeg Manitoba CA R3Y 1G4

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.