Sophos Ltd
Any device whose MAC address begins with A8:91:62 has a network interface built by Sophos 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
- A8:91:62
- Organization
- Sophos Ltd
- Address
- The Pentagon Abingdon Oxfordshire GB OX14 3YP
- 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.