ATH system (60:B1:85:00:00:00 /24)

ATH system MA-L

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

Prefix60:B1:85:00:00:00 /24

Vendor addressOsady Lezaku 498 Chrast CZ 53851

Block range60:B1:85:00:00:00– 60:B1:85: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

60:B1:85:00:00:00 60:B1:85:7F:FF:FF 60:B1:85:FF:FF:FF

Other blocks registered to ATH system

00:50:C2:55:30:00 /36 IAB 00:50:C2:D4:A0:00 /36 IAB