ADVANCED FIBRE COMMUNICATIONS

MA-L

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

Prefix00:90:77:00:00:00 /24

Vendor addressPO BOX #751239 PETALUMA CA US 94975

RegisteredApr 22, 1998

Block range00:90:77:00:00:00– 00:90:77: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

00:90:77:00:00:00 00:90:77:7F:FF:FF 00:90:77:FF:FF:FF

Where this block sits

Previous 00:90:76:00:00:00 /24 FMT AIRCRAFT GATE SUPPORT SYSTEMS AB Next 00:90:78:00:00:00 /24 MER TELEMANAGEMENT SOLUTIONS, LTD.

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

ADVANCED FIBRE COMMUNICATIONS holds 1 registered blocks in the IEEE registry, ranking #4,194 of 33,427 organizations by block count.