Which company owns MAC address prefix 14:C3:C2?

MAC address prefix 14:C3:C2 is registered to K.A. Schmersal GmbH & Co. KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:C3:C2 has a network interface built by K.A. Schmersal GmbH & Co. KG.

What is the OUI 14:C3:C2?

14:C3:C2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to K.A. Schmersal GmbH & Co. KG. It covers every address from 14:C3:C2:00:00:00 to 14:C3:C2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-C3-C2.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 14:C3:C2:00:00:00 that is 14:C3:C2 — 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 K.A. Schmersal GmbH & Co. KG located?

K.A. Schmersal GmbH & Co. KG is listed at Möddinghofe 30 Wuppertal NRW DE 42279 in the IEEE OUI registry entry for 14:C3:C2. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does K.A. Schmersal GmbH & Co. KG own?

K.A. Schmersal GmbH & Co. KG holds 2 OUI prefixes in the IEEE registry, of which 14:C3:C2 is one. A device made by K.A. Schmersal GmbH & Co. KG could carry a MAC address from any of them.

K.A. Schmersal GmbH & Co. KG

MAC address prefix 14:C3:C2 is registered to K.A. Schmersal GmbH & Co. KG in the IEEE OUI registry. Any device whose MAC address begins with 14:C3:C2 has a network interface built by K.A. Schmersal 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 14:C3:C2:00:00:00 to 14:C3:C2:FF:FF:FF.

OUI prefix: 14:C3:C2
Hyphen form: 14-C3-C2
MAC range: 14:C3:C2:00:00:00 – 14:C3:C2:FF:FF:FF
Addresses in block: 16,777,216
Organization: K.A. Schmersal GmbH & Co. KG
Address: Möddinghofe 30 Wuppertal NRW DE 42279
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 K.A. Schmersal GmbH & Co. KG

K.A. Schmersal GmbH & Co. KG holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

00:0D:9C

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 "K.A. Schmersal GmbH & Co. KG"
archived source →
2026-07-17Assigned to "K.A. Schmersal GmbH & Co. KG"

Nearby in the registry

The prefixes assigned immediately before and after 14:C3:C2:

FAQ

Which company owns MAC address prefix 14:C3:C2?: MAC address prefix 14:C3:C2 is registered to K.A. Schmersal GmbH & Co. KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 14:C3:C2 has a network interface built by K.A. Schmersal GmbH & Co. KG.
What is the OUI 14:C3:C2?: 14:C3:C2 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to K.A. Schmersal GmbH & Co. KG. It covers every address from 14:C3:C2:00:00:00 to 14:C3:C2:FF:FF:FF, or 16,777,216 addresses in total. It is also written 14-C3-C2.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 14:C3:C2:00:00:00 that is 14:C3:C2 — 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 K.A. Schmersal GmbH & Co. KG located?: K.A. Schmersal GmbH & Co. KG is listed at Möddinghofe 30 Wuppertal NRW DE 42279 in the IEEE OUI registry entry for 14:C3:C2. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does K.A. Schmersal GmbH & Co. KG own?: K.A. Schmersal GmbH & Co. KG holds 2 OUI prefixes in the IEEE registry, of which 14:C3:C2 is one. A device made by K.A. Schmersal GmbH & Co. KG could carry a MAC address from any of them.