macadress

Iridium Satellite LLC

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1C:B4:00:00:00 /24
Vendor address8440 S. River Parkway Tempe AZ US 85284
Country🇺🇸  United States
RegisteredMay 29, 2007
Block range00:1C:B4:00:00:00– 00:1C:B4: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. May 29, 2007 – Jul 19, 2008 Private name changedaddress changedcountry changed
  2. Jul 19, 2008 – present Iridium Satellite LLC

Example addresses in this block

00:1C:B4:00:00:00 00:1C:B4:7F:FF:FF 00:1C:B4:FF:FF:FF

Where this block sits

Previous 00:1C:B3:00:00:00 /24 Apple, Inc. Next 00:1C:B5:00:00:00 /24 Neihua Network Technology Co.,LTD.(NHN)

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

Iridium Satellite LLC holds 1 registered blocks in the IEEE registry, ranking #16,699 of 33,427 organizations by block count.