Which company owns MAC address prefix A8:A5:E2?

MAC address prefix A8:A5:E2 is registered to MSF-Vathauer Antriebstechnik GmbH & Co KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A8:A5:E2 has a network interface built by MSF-Vathauer Antriebstechnik GmbH & Co KG.

What is the OUI A8:A5:E2?

A8:A5:E2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MSF-Vathauer Antriebstechnik GmbH & Co KG. It covers every address from A8:A5:E2:00:00:00 to A8:A5:E2:FF:FF:FF, or 16,777,216 addresses in total. It is also written A8-A5-E2.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in A8:A5:E2:00:00:00 that is A8:A5:E2 — 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 MSF-Vathauer Antriebstechnik GmbH & Co KG located?

MSF-Vathauer Antriebstechnik GmbH & Co KG is listed at Am Hessentuch 6-8 Detmold Nordrhein-Westfalen DE 32758 in the IEEE OUI registry entry for A8:A5:E2. This is the address the organization registered with the IEEE, which may differ from its current operating address.

MSF-Vathauer Antriebstechnik GmbH & Co KG

MAC address prefix A8:A5:E2 is registered to MSF-Vathauer Antriebstechnik GmbH & Co KG in the IEEE OUI registry. Any device whose MAC address begins with A8:A5:E2 has a network interface built by MSF-Vathauer Antriebstechnik GmbH & Co KG. 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 A8:A5:E2:00:00:00 to A8:A5:E2:FF:FF:FF.

OUI prefix: A8:A5:E2
Hyphen form: A8-A5-E2
MAC range: A8:A5:E2:00:00:00 – A8:A5:E2:FF:FF:FF
Addresses in block: 16,777,216
Organization: MSF-Vathauer Antriebstechnik GmbH & Co KG
Address: Am Hessentuch 6-8 Detmold Nordrhein-Westfalen DE 32758
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.

2017-09-08Assigned to "MSF-Vathauer Antriebstechnik GmbH & Co KG"
archived source →
2026-07-17Assigned to "MSF-Vathauer Antriebstechnik GmbH & Co KG"

Nearby in the registry

The prefixes assigned immediately before and after A8:A5:E2:

FAQ

Which company owns MAC address prefix A8:A5:E2?: MAC address prefix A8:A5:E2 is registered to MSF-Vathauer Antriebstechnik GmbH & Co KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with A8:A5:E2 has a network interface built by MSF-Vathauer Antriebstechnik GmbH & Co KG.
What is the OUI A8:A5:E2?: A8:A5:E2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to MSF-Vathauer Antriebstechnik GmbH & Co KG. It covers every address from A8:A5:E2:00:00:00 to A8:A5:E2:FF:FF:FF, or 16,777,216 addresses in total. It is also written A8-A5-E2.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in A8:A5:E2:00:00:00 that is A8:A5:E2 — 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 MSF-Vathauer Antriebstechnik GmbH & Co KG located?: MSF-Vathauer Antriebstechnik GmbH & Co KG is listed at Am Hessentuch 6-8 Detmold Nordrhein-Westfalen DE 32758 in the IEEE OUI registry entry for A8:A5:E2. This is the address the organization registered with the IEEE, which may differ from its current operating address.