Fi WIn, Inc.

MA-L

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

Prefix00:0C:20:00:00:00 /24

Vendor address8F, No. 10, Prosperity Rd. 1, Hsin Chu TW 300

RegisteredJan 21, 2003

Block range00:0C:20:00:00:00– 00:0C:20: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

00:0C:20:00:00:00 00:0C:20:7F:FF:FF 00:0C:20:FF:FF:FF

Where this block sits

Previous 00:0C:1F:00:00:00 /24 Glimmerglass Networks Next 00:0C:21:00:00:00 /24 Faculty of Science and Technology, Keio University

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

Fi WIn, Inc. holds 1 registered blocks in the IEEE registry, ranking #12,626 of 33,427 organizations by block count.