MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix58:23:BC:20:00:00 /28
Vendor addressGangyuan North Road,Zhongbei Hi-tech Industries Development Zone Taiyuan shanxi CN 030000
Country🇨🇳 China
RegisteredDec 27, 2024
Block range58:23:BC:20:00:00– 58:23:BC:2F: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
58:23:BC:10:00:00 /28
Lens Technology (Xiangtan) Co.,Ltd
Next
58:23:BC:30:00:00 /28
SHSYSTEM.Co.,LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Great Wall Power Supply Technology Co., Ltd. holds 1 registered blocks in the IEEE registry, ranking #13,932 of 33,427 organizations by block count.