MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD4:25:CC:A0:00:00 /28
Vendor address2828 West Parker Unit B201 Plano TX US 75075
Country🇺🇸 United States
RegisteredOct 4, 2018
Block rangeD4:25:CC:A0:00:00– D4:25:CC: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 →
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.
E-MetroTel holds 2 registered blocks in the IEEE registry, ranking #1,918 of 33,427 organizations by block count.
Other blocks registered to E-MetroTel