MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix40:11:75:70:00:00 /28
Vendor addressROOM 201 at 2nd floor in 2nd Building,No.602, Guangshan 2nd Road, Tianhe District Guangzhou Guangdong CN 510663
Country🇨🇳 China
RegisteredJul 9, 2019
Block range40:11:75:70:00:00– 40:11:75:7F: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
40:11:75:60:00:00 /28
ShenZhen LanShuo Communication Equipment CO.,LTD.
Next
40:11:75:80:00:00 /28
Beijing Gemotech Intelligent Technology Co., Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Guangzhou RALID Information System Co.Ltd holds 1 registered blocks in the IEEE registry, ranking #14,187 of 33,427 organizations by block count.