MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
PrefixB4:1C:AB:00:00:00 /24
Vendor address6200 S Main St Suite 200 Aurora CO US 80016
Country🇺🇸 United States
RegisteredMay 6, 2021
Block rangeB4:1C:AB:00:00:00– B4:1C:AB: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
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ICR, inc. holds 1 registered blocks in the IEEE registry, ranking #15,539 of 33,427 organizations by block count.