MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixA0:C5:F2:A0:00:00 /28
Vendor address576 East Germann Road Gilbert AZ US 85296
Country🇺🇸 United States
RegisteredMar 12, 2017
Block rangeA0:C5:F2:A0:00:00– A0:C5:F2:AF: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 →
Ownership timeline
- Aug 22, 2026 – Sep 26, 2026 Serious Integrated, Inc. name changed
- Sep 26, 2026 – present e2ip Technologies
Example addresses in this block
Where this block sits
Previous
A0:C5:F2:90:00:00 /28
Impulse Networks Pte Ltd
Next
A0:C5:F2:B0:00:00 /28
Oray.com co., LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
e2ip Technologies holds 1 registered blocks in the IEEE registry, ranking #11,033 of 33,427 organizations by block count.