Which company owns MAC address prefix A4:68:BC?

MAC address prefix A4:68:BC is registered to Oakley Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:68:BC has a network interface built by Oakley Inc..

What is the OUI A4:68:BC?

A4:68:BC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Oakley Inc.. It covers every address from A4:68:BC:00:00:00 to A4:68:BC:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-68-BC.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A4:68:BC:00:00:00 that is A4:68:BC — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is Oakley Inc. located?

Oakley Inc. is listed at 1 Icon Foothill Ranch CA US 92610 in the IEEE OUI registry entry for A4:68:BC. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Oakley Inc.

MAC address prefix A4:68:BC is registered to Oakley Inc. in the IEEE OUI registry. Any device whose MAC address begins with A4:68:BC has a network interface built by Oakley Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from A4:68:BC:00:00:00 to A4:68:BC:FF:FF:FF.

OUI prefix: A4:68:BC
Hyphen form: A4-68-BC
MAC range: A4:68:BC:00:00:00 – A4:68:BC:FF:FF:FF
Addresses in block: 16,777,216
Organization: Oakley Inc.
Address: 1 Icon Foothill Ranch CA US 92610
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.

Assignment history (3)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "Private"
archived source →
2020-11-28Renamed from "Private" to "Oakley Inc."
archived source →
2026-07-17Assigned to "Oakley Inc."

Nearby in the registry

The prefixes assigned immediately before and after A4:68:BC:

FAQ

Which company owns MAC address prefix A4:68:BC?: MAC address prefix A4:68:BC is registered to Oakley Inc. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A4:68:BC has a network interface built by Oakley Inc..
What is the OUI A4:68:BC?: A4:68:BC is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Oakley Inc.. It covers every address from A4:68:BC:00:00:00 to A4:68:BC:FF:FF:FF, or 16,777,216 addresses in total. It is also written A4-68-BC.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A4:68:BC:00:00:00 that is A4:68:BC — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is Oakley Inc. located?: Oakley Inc. is listed at 1 Icon Foothill Ranch CA US 92610 in the IEEE OUI registry entry for A4:68:BC. This is the address the organization registered with the IEEE, which may differ from its current operating address.