MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixE0:23:3B:80:00:00 /28
Vendor addressRoom 511,New Building, Xunlilndustrial Park,No.29 Xixia Road,Yuexi Town, Wuzhong District Suzhou Jiangsu CN 215104
Country🇨🇳 China
RegisteredAug 12, 2025
Block rangeE0:23:3B:80:00:00– E0:23:3B: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
E0:23:3B:70:00:00 /28
Rehear Audiology Company LTD.
Next
E0:23:3B:90:00:00 /28
HANET TECHNOLOGY
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Suzhou Visrgb Technology Co., Ltd holds 1 registered blocks in the IEEE registry, ranking #28,719 of 33,421 organizations by block count.