Which company owns MAC address prefix 00:11:1E?

MAC address prefix 00:11:1E is registered to B&R Industrial Automation GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:11:1E has a network interface built by B&R Industrial Automation GmbH.

What is the OUI 00:11:1E?

00:11:1E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to B&R Industrial Automation GmbH. It covers every address from 00:11:1E:00:00:00 to 00:11:1E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-11-1E.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 00:11:1E:00:00:00 that is 00:11:1E — 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 B&R Industrial Automation GmbH located?

B&R Industrial Automation GmbH is listed at B&R Strasse 1 Eggelsberg AT 5142 in the IEEE OUI registry entry for 00:11:1E. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does B&R Industrial Automation GmbH own?

B&R Industrial Automation GmbH holds 3 OUI prefixes in the IEEE registry, of which 00:11:1E is one. A device made by B&R Industrial Automation GmbH could carry a MAC address from any of them.

B&R Industrial Automation GmbH

MAC address prefix 00:11:1E is registered to B&R Industrial Automation GmbH in the IEEE OUI registry. Any device whose MAC address begins with 00:11:1E has a network interface built by B&R Industrial Automation 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 00:11:1E:00:00:00 to 00:11:1E:FF:FF:FF.

OUI prefix: 00:11:1E
Hyphen form: 00-11-1E
MAC range: 00:11:1E:00:00:00 – 00:11:1E:FF:FF:FF
Addresses in block: 16,777,216
Organization: B&R Industrial Automation GmbH
Address: B&R Strasse 1 Eggelsberg AT 5142
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 B&R Industrial Automation GmbH

B&R Industrial Automation GmbH holds 3 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

Assignment history (4)

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 "EPSG (Ethernet Powerlink Standardization Group)"
archived source →
2018-12-21Renamed from "EPSG (Ethernet Powerlink Standardization Group)" to "ETHERNET Powerlink Standarization Group (EPSG)"
archived source →
2026-01-19Renamed from "ETHERNET Powerlink Standarization Group (EPSG)" to "B&R Industrial Automation GmbH"
archived source →
2026-07-17Assigned to "B&R Industrial Automation GmbH"

Nearby in the registry

The prefixes assigned immediately before and after 00:11:1E:

FAQ

Which company owns MAC address prefix 00:11:1E?: MAC address prefix 00:11:1E is registered to B&R Industrial Automation GmbH in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 00:11:1E has a network interface built by B&R Industrial Automation GmbH.
What is the OUI 00:11:1E?: 00:11:1E is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to B&R Industrial Automation GmbH. It covers every address from 00:11:1E:00:00:00 to 00:11:1E:FF:FF:FF, or 16,777,216 addresses in total. It is also written 00-11-1E.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 00:11:1E:00:00:00 that is 00:11:1E — 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 B&R Industrial Automation GmbH located?: B&R Industrial Automation GmbH is listed at B&R Strasse 1 Eggelsberg AT 5142 in the IEEE OUI registry entry for 00:11:1E. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does B&R Industrial Automation GmbH own?: B&R Industrial Automation GmbH holds 3 OUI prefixes in the IEEE registry, of which 00:11:1E is one. A device made by B&R Industrial Automation GmbH could carry a MAC address from any of them.