Cisco Meraki
Any device whose MAC address begins with B4:DF:91 has a network interface built by Cisco Meraki. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.
- OUI prefix
- B4:DF:91
- Organization
- Cisco Meraki
- Address
- 500 Terry A. Francois Blvd San Francisco US 94158
- 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.