Which company owns MAC address prefix 00:17:67?

MAC address prefix 00:17:67 is registered to Earforce AS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:17:67 has a network interface built by Earforce AS.

What is the OUI 00:17:67?

00:17:67 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Earforce AS. It covers every address from 00:17:67:00:00:00 to 00:17:67:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-17-67.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:17:67:00:00:00 that is 00:17:67 — 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 Earforce AS located?

Earforce AS is listed at P.O.Box 4 Bryne NO 4349 in the IEEE OUI registry entry for 00:17:67. This is the address the organization registered with the IEEE, which may differ from its current operating address.

Earforce AS

MAC address prefix 00:17:67 is registered to Earforce AS in the IEEE OUI registry. Any device whose MAC address begins with 00:17:67 has a network interface built by Earforce AS. 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 00:17:67:00:00:00 to 00:17:67:FF:FF:FF.

OUI prefix: 00:17:67
Hyphen form: 00-17-67
MAC range: 00:17:67:00:00:00 – 00:17:67:FF:FF:FF
Addresses in block: 16,777,216
Organization: Earforce AS
Address: P.O.Box 4 Bryne NO 4349
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 "Earforce AS"
archived source →
2026-07-17Assigned to "Earforce AS"

Nearby in the registry

The prefixes assigned immediately before and after 00:17:67:

FAQ

Which company owns MAC address prefix 00:17:67?: MAC address prefix 00:17:67 is registered to Earforce AS in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:17:67 has a network interface built by Earforce AS.
What is the OUI 00:17:67?: 00:17:67 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Earforce AS. It covers every address from 00:17:67:00:00:00 to 00:17:67:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-17-67.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:17:67:00:00:00 that is 00:17:67 — 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 Earforce AS located?: Earforce AS is listed at P.O.Box 4 Bryne NO 4349 in the IEEE OUI registry entry for 00:17:67. This is the address the organization registered with the IEEE, which may differ from its current operating address.