Which company owns MAC address prefix DC:67:23?

MAC address prefix DC:67:23 is registered to barox Kommunikation GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:67:23 has a network interface built by barox Kommunikation GmbH.

What is the OUI DC:67:23?

DC:67:23 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to barox Kommunikation GmbH. It covers every address from DC:67:23:00:00:00 to DC:67:23:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-67-23.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in DC:67:23:00:00:00 that is DC:67:23 — 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 barox Kommunikation GmbH located?

barox Kommunikation GmbH is listed at Marie-Curie-Strasse 8 Lörrach DE DE-79539 in the IEEE OUI registry entry for DC:67:23. This is the address the organization registered with the IEEE, which may differ from its current operating address.

barox Kommunikation GmbH

MAC address prefix DC:67:23 is registered to barox Kommunikation GmbH in the IEEE OUI registry. Any device whose MAC address begins with DC:67:23 has a network interface built by barox Kommunikation GmbH. 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 DC:67:23:00:00:00 to DC:67:23:FF:FF:FF.

OUI prefix: DC:67:23
Hyphen form: DC-67-23
MAC range: DC:67:23:00:00:00 – DC:67:23:FF:FF:FF
Addresses in block: 16,777,216
Organization: barox Kommunikation GmbH
Address: Marie-Curie-Strasse 8 Lörrach DE DE-79539
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.

2018-12-21Assigned to "barox Kommunikation GmbH"
archived source →
2026-07-17Assigned to "barox Kommunikation GmbH"

Nearby in the registry

The prefixes assigned immediately before and after DC:67:23:

FAQ

Which company owns MAC address prefix DC:67:23?: MAC address prefix DC:67:23 is registered to barox Kommunikation GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with DC:67:23 has a network interface built by barox Kommunikation GmbH.
What is the OUI DC:67:23?: DC:67:23 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to barox Kommunikation GmbH. It covers every address from DC:67:23:00:00:00 to DC:67:23:FF:FF:FF, or 16,777,216 addresses in total. It is also written DC-67-23.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in DC:67:23:00:00:00 that is DC:67:23 — 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 barox Kommunikation GmbH located?: barox Kommunikation GmbH is listed at Marie-Curie-Strasse 8 Lörrach DE DE-79539 in the IEEE OUI registry entry for DC:67:23. This is the address the organization registered with the IEEE, which may differ from its current operating address.