MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix74:F8:DB:70:00:00 /28
Vendor addressHUST Industry Park, East-Lake Development Zone Wuhan Hubei CN 430223
Country🇨🇳 China
RegisteredOct 16, 2015
Block range74:F8:DB:70:00:00– 74:F8:DB: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
74:F8:DB:60:00:00 /28
Shenzhen Melon Electronics Co.,Ltd
Next
74:F8:DB:80:00:00 /28
Songam Syscom Co. LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Wuhan Tianyu Information Industry Co., Ltd. holds 6 registered blocks in the IEEE registry, ranking #539 of 33,427 organizations by block count.
Other blocks registered to Wuhan Tianyu Information Industry Co., Ltd.