macadress

Cache IQ

MA-L
MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:1F:8B:00:00:00 /24
Vendor address8834 North Capital of Texas Hwy Austin Texas US 78759
Country🇺🇸  United States
RegisteredJan 14, 2008
Block range00:1F:8B:00:00:00– 00:1F:8B: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. Jan 14, 2008 – Apr 2, 2011 Storspeed, Inc. name changedaddress changed
  2. Apr 2, 2011 – present Cache IQ

Example addresses in this block

00:1F:8B:00:00:00 00:1F:8B:7F:FF:FF 00:1F:8B:FF:FF:FF

Where this block sits

Previous 00:1F:8A:00:00:00 /24 Ellion Digital Inc. Next 00:1F:8C:00:00:00 /24 CCS Inc.

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

Cache IQ holds 1 registered blocks in the IEEE registry, ranking #7,658 of 33,427 organizations by block count.