MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix4C:E1:73:A0:00:00 /28
Vendor addressEttenbergstrasse 19 Deckenpfronn DE 75392
Country🇩🇪 Germany
RegisteredJul 24, 2016
Block range4C:E1:73:A0:00:00– 4C:E1:73: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
Previous
4C:E1:73:90:00:00 /28
Shenzhen Evolution Dynamics Co., Ltd.
Next
4C:E1:73:B0:00:00 /28
Shanghai Ehong Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
jvi holds 1 registered blocks in the IEEE registry, ranking #17,386 of 33,427 organizations by block count.