MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF4:A4:54:80:00:00 /28
Vendor addressRoom A606, Gaoxinqi Industrial Park, Baoan 67 Dist Baoan 67 District, Shenzhen CN 518101
Country🇨🇳 China
RegisteredSep 17, 2021
Block rangeF4:A4:54:80:00:00– F4:A4:54:8F: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
F4:A4:54:70:00:00 /28
Advanced Mechanical Technology, Inc. d/b/a AMTI
Next
F4:A4:54:90:00:00 /28
Lonton infomation tech Ltd., Co
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shenzhen Cudy Technology Co., Ltd. holds 4 registered blocks in the IEEE registry, ranking #827 of 33,421 organizations by block count.
Other blocks registered to Shenzhen Cudy Technology Co., Ltd.