macadress

Aclara RF Systems Inc.

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:19:2B:00:00:00 /24
Vendor address30400 Solon Road Solon OH US 44139
Country🇺🇸  United States
RegisteredAug 14, 2006
Block range00:19:2B:00:00:00– 00:19:2B: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

  1. Aug 14, 2006 – Jul 19, 2008 Hexagram, Inc. name changed
  2. Jul 19, 2008 – present Aclara RF Systems Inc.

Example addresses in this block

00:19:2B:00:00:00 00:19:2B:7F:FF:FF 00:19:2B:FF:FF:FF

Where this block sits

Previous 00:19:2A:00:00:00 /24 Antiope Associates Next 00:19:2C:00:00:00 /24 Commscope

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

Aclara RF Systems Inc. holds 1 registered blocks in the IEEE registry, ranking #3,917 of 33,421 organizations by block count.