MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix90:A9:F7:30:00:00 /28
Vendor addressRoom 1506,building E, Nanotechnology University Sciene park, No.388 Ruoshuiroad,Suzhou industrial park Suzhou Jiangsu CN 215123
Country🇨🇳 China
RegisteredSep 6, 2023
Block range90:A9:F7:30:00:00– 90:A9:F7:3F: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
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90:A9:F7:20:00:00 /28
Suzhou Lingchen Acquisition Computer
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90:A9:F7:40:00:00 /28
LAB-EL ELEKTRONIKA LABORATORYJNA
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Suzhou Etag-Technology Corporation holds 2 registered blocks in the IEEE registry, ranking #3,172 of 33,427 organizations by block count.
Other blocks registered to Suzhou Etag-Technology Corporation