macadress

B&R Industrial Automation GmbH

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:11:1E:00:00:00 /24
Vendor addressB&R Strasse 1 Eggelsberg       AT 5142
Country🇦🇹  Austria
RegisteredApr 25, 2004
Block range00:11:1E:00:00:00– 00:11:1E:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority

Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.

Curious how a prefix like this turns into a full address? See how MAC addresses are structured →

Ownership timeline

  1. Apr 25, 2004 – Feb 23, 2018 EPSG (Ethernet Powerlink Standardization Group) name changedaddress changed
  2. Feb 23, 2018 – Jan 9, 2026 ETHERNET Powerlink Standarization Group (EPSG) name changedaddress changedcountry changed
  3. Jan 9, 2026 – present B&R Industrial Automation GmbH

Example addresses in this block

00:11:1E:00:00:00 00:11:1E:7F:FF:FF 00:11:1E:FF:FF:FF

Where this block sits

Previous 00:11:1D:00:00:00 /24 Hectrix Limited Next 00:11:1F:00:00:00 /24 Doremi Labs, Inc.

The nearest registered blocks of the same size on either side of this one in IEEE's address space.

B&R Industrial Automation GmbH holds 3 registered blocks in the IEEE registry, ranking #932 of 33,421 organizations by block count.

Other blocks registered to B&R Industrial Automation GmbH

00:15:1E:00:00:00 /24 MA-L 00:60:65:00:00:00 /24 MA-L