MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixD4:61:37:30:00:00 /28
Vendor address22F,High-tech Zone Union Tower 63 Xuefu Road Shenzhen China Shenzhen Guangdong CN 518000
Country🇨🇳 China
RegisteredAug 26, 2022
Block rangeD4:61:37:30:00:00– D4:61:37:3F: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
D4:61:37:20:00:00 /28
Robert Bosch Elektronikai Kft.
Next
D4:61:37:40:00:00 /28
Beijing TAIXINYUN Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
APPOTRONICS CO., LTD holds 4 registered blocks in the IEEE registry, ranking #683 of 33,421 organizations by block count.
Other blocks registered to APPOTRONICS CO., LTD