Which company owns MAC address prefix CC:7E:0F?

MAC address prefix CC:7E:0F is registered to Theben AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:7E:0F has a network interface built by Theben AG.

What is the OUI CC:7E:0F?

CC:7E:0F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Theben AG. It covers every address from CC:7E:0F:00:00:00 to CC:7E:0F:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-7E-0F.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in CC:7E:0F:00:00:00 that is CC:7E:0F — 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 Theben AG located?

Theben AG is listed at Hohenbergstraße 32 Haigerloch Baden-Württemberg DE 72401 in the IEEE OUI registry entry for CC:7E:0F. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does Theben AG own?

Theben AG holds 2 OUI prefixes in the IEEE registry, of which CC:7E:0F is one. A device made by Theben AG could carry a MAC address from any of them.

Theben AG

MAC address prefix CC:7E:0F is registered to Theben AG in the IEEE OUI registry. Any device whose MAC address begins with CC:7E:0F has a network interface built by Theben AG. 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 CC:7E:0F:00:00:00 to CC:7E:0F:FF:FF:FF.

OUI prefix: CC:7E:0F
Hyphen form: CC-7E-0F
MAC range: CC:7E:0F:00:00:00 – CC:7E:0F:FF:FF:FF
Addresses in block: 16,777,216
Organization: Theben AG
Address: Hohenbergstraße 32 Haigerloch Baden-Württemberg DE 72401
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.

Other prefixes from Theben AG

Theben AG holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

5C:CA:32

Assignment history (2)

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

2024-04-16Assigned to "Theben AG"
archived source →
2026-07-17Assigned to "Theben AG"

Nearby in the registry

The prefixes assigned immediately before and after CC:7E:0F:

FAQ

Which company owns MAC address prefix CC:7E:0F?: MAC address prefix CC:7E:0F is registered to Theben AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with CC:7E:0F has a network interface built by Theben AG.
What is the OUI CC:7E:0F?: CC:7E:0F is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to Theben AG. It covers every address from CC:7E:0F:00:00:00 to CC:7E:0F:FF:FF:FF, or 16,777,216 addresses in total. It is also written CC-7E-0F.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in CC:7E:0F:00:00:00 that is CC:7E:0F — 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 Theben AG located?: Theben AG is listed at Hohenbergstraße 32 Haigerloch Baden-Württemberg DE 72401 in the IEEE OUI registry entry for CC:7E:0F. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does Theben AG own?: Theben AG holds 2 OUI prefixes in the IEEE registry, of which CC:7E:0F is one. A device made by Theben AG could carry a MAC address from any of them.