International Data Communications, Inc.

MA-L

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

Prefix00:07:91:00:00:00 /24

Vendor address47873 Fremont Blvd. Fremont CA US 04538

RegisteredOct 24, 2001

Block range00:07:91:00:00:00– 00:07:91: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

00:07:91:00:00:00 00:07:91:7F:FF:FF 00:07:91:FF:FF:FF

Where this block sits

Previous 00:07:90:00:00:00 /24 Tri-M Technologies (s) Limited Next 00:07:92:00:00:00 /24 Sütron Electronic GmbH

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

International Data Communications, Inc. holds 1 registered blocks in the IEEE registry, ranking #16,429 of 33,427 organizations by block count.