Which company owns MAC address prefix C0:84:88?

MAC address prefix C0:84:88 is registered to Finis Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:84:88 has a network interface built by Finis Inc.

What is the OUI C0:84:88?

C0:84:88 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Finis Inc. It covers every address from C0:84:88:00:00:00 to C0:84:88:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-84-88.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in C0:84:88:00:00:00 that is C0:84:88 — 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 Finis Inc located?

Finis Inc is listed at 7085-E Las Positas Rd Livermore CA US 94551 in the IEEE OUI registry entry for C0:84:88. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Finis Inc

MAC address prefix C0:84:88 is registered to Finis Inc in the IEEE OUI registry. Any device whose MAC address begins with C0:84:88 has a network interface built by Finis 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 C0:84:88:00:00:00 to C0:84:88:FF:FF:FF.

OUI prefix: C0:84:88
Hyphen form: C0-84-88
MAC range: C0:84:88:00:00:00 – C0:84:88:FF:FF:FF
Addresses in block: 16,777,216
Organization: Finis Inc
Address: 7085-E Las Positas Rd Livermore CA US 94551
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 (2)

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 "Finis Inc"
archived source →
2026-07-17Assigned to "Finis Inc"

Nearby in the registry

The prefixes assigned immediately before and after C0:84:88:

FAQ

Which company owns MAC address prefix C0:84:88?: MAC address prefix C0:84:88 is registered to Finis Inc in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with C0:84:88 has a network interface built by Finis Inc.
What is the OUI C0:84:88?: C0:84:88 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Finis Inc. It covers every address from C0:84:88:00:00:00 to C0:84:88:FF:FF:FF, or 16,777,216 addresses in total. It is also written C0-84-88.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in C0:84:88:00:00:00 that is C0:84:88 — 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 Finis Inc located?: Finis Inc is listed at 7085-E Las Positas Rd Livermore CA US 94551 in the IEEE OUI registry entry for C0:84:88. This is the address the organization registered with the IEEE, which may differ from its current operating address.