MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix28:F8:C6:B0:00:00 /28
Vendor address5600 River Rd, Suite 800 Rosemont IL US 60018
Country🇺🇸 United States
RegisteredNov 16, 2023
Block range28:F8:C6:B0:00:00– 28:F8:C6:BF:FF:FF
Address capacity1,048,576
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
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28:F8:C6:A0:00:00 /28
Videndum Media Solutions Spa
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28:F8:C6:C0:00:00 /28
Annapurna labs
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
3PI Tech Solutions holds 1 registered blocks in the IEEE registry, ranking #3,575 of 33,421 organizations by block count.