Which company owns MAC address prefix 00:12:AD?

MAC address prefix 00:12:AD is registered to VIVAVIS AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:12:AD has a network interface built by VIVAVIS AG.

What is the OUI 00:12:AD?

00:12:AD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to VIVAVIS AG. It covers every address from 00:12:AD:00:00:00 to 00:12:AD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-12-AD.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:12:AD:00:00:00 that is 00:12:AD — 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 VIVAVIS AG located?

VIVAVIS AG is listed at Nobelstraße, 18 Ettlingen Baden-Württemberg DE 76275 in the IEEE OUI registry entry for 00:12:AD. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does VIVAVIS AG own?

VIVAVIS AG holds 2 OUI prefixes in the IEEE registry, of which 00:12:AD is one. A device made by VIVAVIS AG could carry a MAC address from any of them.

VIVAVIS AG

MAC address prefix 00:12:AD is registered to VIVAVIS AG in the IEEE OUI registry. Any device whose MAC address begins with 00:12:AD has a network interface built by VIVAVIS 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 00:12:AD:00:00:00 to 00:12:AD:FF:FF:FF.

OUI prefix: 00:12:AD
Hyphen form: 00-12-AD
MAC range: 00:12:AD:00:00:00 – 00:12:AD:FF:FF:FF
Addresses in block: 16,777,216
Organization: VIVAVIS AG
Address: Nobelstraße, 18 Ettlingen Baden-Württemberg DE 76275
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 VIVAVIS AG

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

A4:D0:94

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 "IDS GmbH"
archived source →
2020-11-28Renamed from "IDS GmbH" to "VIVAVIS AG"
archived source →
2026-07-17Assigned to "VIVAVIS AG"

Nearby in the registry

The prefixes assigned immediately before and after 00:12:AD:

FAQ

Which company owns MAC address prefix 00:12:AD?: MAC address prefix 00:12:AD is registered to VIVAVIS AG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:12:AD has a network interface built by VIVAVIS AG.
What is the OUI 00:12:AD?: 00:12:AD is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to VIVAVIS AG. It covers every address from 00:12:AD:00:00:00 to 00:12:AD:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-12-AD.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:12:AD:00:00:00 that is 00:12:AD — 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 VIVAVIS AG located?: VIVAVIS AG is listed at Nobelstraße, 18 Ettlingen Baden-Württemberg DE 76275 in the IEEE OUI registry entry for 00:12:AD. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does VIVAVIS AG own?: VIVAVIS AG holds 2 OUI prefixes in the IEEE registry, of which 00:12:AD is one. A device made by VIVAVIS AG could carry a MAC address from any of them.