Rockwell Automation (F4:54:33:00:00:00 /24)

Rockwell Automation MA-L

MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.

PrefixF4:54:33:00:00:00 /24

Vendor address1 Allen-Bradley Dr. Mayfield Heights OH US 44124-6118

Block rangeF4:54:33:00:00:00– F4:54:33: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 →

Example addresses in this block

F4:54:33:00:00:00 F4:54:33:7F:FF:FF F4:54:33:FF:FF:FF

Other blocks registered to Rockwell Automation

00:00:BC:00:00:00 /24 MA-L 00:1D:9C:00:00:00 /24 MA-L 08:61:95:00:00:00 /24 MA-L 18:4C:08:00:00:00 /24 MA-L 34:C0:F9:00:00:00 /24 MA-L 40:41:01:00:00:00 /24 MA-L 44:CC:6E:00:00:00 /24 MA-L 5C:21:67:00:00:00 /24 MA-L 5C:88:16:00:00:00 /24 MA-L 68:C8:EB:00:00:00 /24 MA-L BC:F4:99:00:00:00 /24 MA-L E4:8E:BB:00:00:00 /24 MA-L