Which company owns MAC address prefix 30:32:94?

MAC address prefix 30:32:94 is registered to W-IE-NE-R Plein & Baus GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:32:94 has a network interface built by W-IE-NE-R Plein & Baus GmbH.

What is the OUI 30:32:94?

30:32:94 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to W-IE-NE-R Plein & Baus GmbH. It covers every address from 30:32:94:00:00:00 to 30:32:94:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-32-94.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 30:32:94:00:00:00 that is 30:32:94 — 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 W-IE-NE-R Plein & Baus GmbH located?

W-IE-NE-R Plein & Baus GmbH is listed at Muellersbaum 20 Burscheid NRW US 51399 in the IEEE OUI registry entry for 30:32:94. This is the address the organization registered with the IEEE, which may differ from its current operating address.

W-IE-NE-R Plein & Baus GmbH

MAC address prefix 30:32:94 is registered to W-IE-NE-R Plein & Baus GmbH in the IEEE OUI registry. Any device whose MAC address begins with 30:32:94 has a network interface built by W-IE-NE-R Plein & Baus 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 30:32:94:00:00:00 to 30:32:94:FF:FF:FF.

OUI prefix: 30:32:94
Hyphen form: 30-32-94
MAC range: 30:32:94:00:00:00 – 30:32:94:FF:FF:FF
Addresses in block: 16,777,216
Organization: W-IE-NE-R Plein & Baus GmbH
Address: Muellersbaum 20 Burscheid NRW US 51399
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 "W-IE-NE-R Plein & Baus GmbH"
archived source →
2026-07-17Assigned to "W-IE-NE-R Plein & Baus GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 30:32:94:

FAQ

Which company owns MAC address prefix 30:32:94?: MAC address prefix 30:32:94 is registered to W-IE-NE-R Plein & Baus GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 30:32:94 has a network interface built by W-IE-NE-R Plein & Baus GmbH.
What is the OUI 30:32:94?: 30:32:94 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to W-IE-NE-R Plein & Baus GmbH. It covers every address from 30:32:94:00:00:00 to 30:32:94:FF:FF:FF, or 16,777,216 addresses in total. It is also written 30-32-94.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 30:32:94:00:00:00 that is 30:32:94 — 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 W-IE-NE-R Plein & Baus GmbH located?: W-IE-NE-R Plein & Baus GmbH is listed at Muellersbaum 20 Burscheid NRW US 51399 in the IEEE OUI registry entry for 30:32:94. This is the address the organization registered with the IEEE, which may differ from its current operating address.