MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix68:79:12:90:00:00 /28
Vendor addressHodoninska 1 Praha 4 CZ 141 00
Country🇨🇿 Czechia
RegisteredSep 25, 2020
Block range68:79:12:90:00:00– 68:79:12:9F: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
68:79:12:80:00:00 /28
ShangHai Aigentoo Information Technology Co., Ltd
Next
68:79:12:A0:00:00 /28
Wingtech Mobile Communications Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
LEAPS s.r.o. holds 2 registered blocks in the IEEE registry, ranking #2,397 of 33,427 organizations by block count.
Other blocks registered to LEAPS s.r.o.