MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix8C:C8:F4:40:00:00 /28
Vendor addressNo.108, XiShanqiao Nanlu Nanjing Jiangsu CN 210039
Country🇨🇳 China
RegisteredNov 6, 2016
Block range8C:C8:F4:40:00:00– 8C:C8:F4:4F: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
8C:C8:F4:30:00:00 /28
TOHO DENKI IND.CO.,LTD
Next
8C:C8:F4:50:00:00 /28
Beijing KXWELL Technology CO., LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
ITECH Electronic Co.,ltd. holds 1 registered blocks in the IEEE registry, ranking #16,832 of 33,427 organizations by block count.