MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0A:CB:00:00:00 /24
Vendor addressCare of: Molex Fiber Optics Downers Grove IL US 60515
Country🇺🇸 United States
RegisteredAug 3, 2002
Block range00:0A:CB:00:00:00– 00:0A:CB: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
Previous
00:0A:CA:00:00:00 /24
YOKOYAMA SHOKAI CO.,Ltd.
Next
00:0A:CC:00:00:00 /24
Winnow Networks, Inc.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
XPAK MSA Group holds 1 registered blocks in the IEEE registry, ranking #32,784 of 33,427 organizations by block count.