Industrial Defender, Inc.

MA-L

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

Prefix00:0B:1A:00:00:00 /24

Vendor address16 Chestnut Street Foxborough MA US 02035

RegisteredSep 9, 2002

Block range00:0B:1A:00:00:00– 00:0B:1A: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 →

Ownership timeline

Sep 9, 2002 – Jun 23, 2009 Teltone Corporation name changedaddress changed
Jun 23, 2009 – present Industrial Defender, Inc.

Example addresses in this block

00:0B:1A:00:00:00 00:0B:1A:7F:FF:FF 00:0B:1A:FF:FF:FF

Where this block sits

Previous 00:0B:19:00:00:00 /24 Vernier Networks, Inc. Next 00:0B:1B:00:00:00 /24 Systronix, Inc.

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

Industrial Defender, Inc. holds 1 registered blocks in the IEEE registry, ranking #15,909 of 33,427 organizations by block count.