Sophos Ltd

Sophos Ltd holds 4 OUI prefixes in the IEEE registry. Each prefix is the first three octets of a MAC address and covers a block of 16,777,216 addresses, so devices built by Sophos Ltd draw from a pool of about 67,108,864 possible MAC addresses in total.

Registered address: The Pentagon Abingdon Oxfordshire GB OX14 3YP

All 4 prefixes

• 00:1A:8C00:1A:8C:00:00:00 – 00:1A:8C:FF:FF:FF
• 7C:5A:1C7C:5A:1C:00:00:00 – 7C:5A:1C:FF:FF:FF
• A8:91:62A8:91:62:00:00:00 – A8:91:62:FF:FF:FF
• C8:4F:86C8:4F:86:00:00:00 – C8:4F:86:FF:FF:FF

Have a full MAC address? Look it up to see which of these prefixes it belongs to — or browse the full manufacturer directory.