Wuhan Tianyu Information Industry Co., Ltd. (74:F8:DB:70:00:00 /28)

Wuhan Tianyu Information Industry Co., Ltd. MA-M

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

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

74:F8:DB:70:00:00 74:F8:DB:77:FF:FF 74:F8:DB:7F:FF:FF

Other blocks registered to Wuhan Tianyu Information Industry Co., Ltd.

2C:7C:E4:00:00:00 /24 MA-L 4C:80:BA:00:00:00 /24 MA-L AC:20:3E:00:00:00 /24 MA-L B8:32:41:00:00:00 /24 MA-L 08:26:AE:00:00:00 /28 MA-M