Which company owns MAC address prefix 10:25:CE?

MAC address prefix 10:25:CE is registered to ELKA - Torantriebe GmbH u. Co. Betriebs KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:25:CE has a network interface built by ELKA - Torantriebe GmbH u. Co. Betriebs KG.

What is the OUI 10:25:CE?

10:25:CE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ELKA - Torantriebe GmbH u. Co. Betriebs KG. It covers every address from 10:25:CE:00:00:00 to 10:25:CE:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-25-CE.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 10:25:CE:00:00:00 that is 10:25:CE — 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 ELKA - Torantriebe GmbH u. Co. Betriebs KG located?

ELKA - Torantriebe GmbH u. Co. Betriebs KG is listed at Dithmarscher Straße 9 Tönning DE 25832 in the IEEE OUI registry entry for 10:25:CE. This is the address the organization registered with the IEEE, which may differ from its current operating address.

ELKA - Torantriebe GmbH u. Co. Betriebs KG

MAC address prefix 10:25:CE is registered to ELKA - Torantriebe GmbH u. Co. Betriebs KG in the IEEE OUI registry. Any device whose MAC address begins with 10:25:CE has a network interface built by ELKA - Torantriebe GmbH u. Co. Betriebs 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 10:25:CE:00:00:00 to 10:25:CE:FF:FF:FF.

OUI prefix: 10:25:CE
Hyphen form: 10-25-CE
MAC range: 10:25:CE:00:00:00 – 10:25:CE:FF:FF:FF
Addresses in block: 16,777,216
Organization: ELKA - Torantriebe GmbH u. Co. Betriebs KG
Address: Dithmarscher Straße 9 Tönning DE 25832
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.

2025-08-23Assigned to "ELKA - Torantriebe GmbH u. Co. Betriebs KG"
archived source →
2026-07-17Assigned to "ELKA - Torantriebe GmbH u. Co. Betriebs KG"

Nearby in the registry

The prefixes assigned immediately before and after 10:25:CE:

FAQ

Which company owns MAC address prefix 10:25:CE?: MAC address prefix 10:25:CE is registered to ELKA - Torantriebe GmbH u. Co. Betriebs KG in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 10:25:CE has a network interface built by ELKA - Torantriebe GmbH u. Co. Betriebs KG.
What is the OUI 10:25:CE?: 10:25:CE is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ELKA - Torantriebe GmbH u. Co. Betriebs KG. It covers every address from 10:25:CE:00:00:00 to 10:25:CE:FF:FF:FF, or 16,777,216 addresses in total. It is also written 10-25-CE.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 10:25:CE:00:00:00 that is 10:25:CE — 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 ELKA - Torantriebe GmbH u. Co. Betriebs KG located?: ELKA - Torantriebe GmbH u. Co. Betriebs KG is listed at Dithmarscher Straße 9 Tönning DE 25832 in the IEEE OUI registry entry for 10:25:CE. This is the address the organization registered with the IEEE, which may differ from its current operating address.