MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix30:09:F9:20:00:00 /28
Vendor addressNo. 7, 7th floor, No.49 Zhichun Road, Haidian District Beijing Beijing CN 100190
Country🇨🇳 China
RegisteredMay 20, 2018
Block range30:09:F9:20:00:00– 30:09:F9:2F: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
30:09:F9:10:00:00 /28
Shenzhen Sunvell Electronics Co., Ltd.
Next
30:09:F9:30:00:00 /28
OOO "Microlink-Svyaz"
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Beijing Netswift Technology Co.,Ltd. holds 2 registered blocks in the IEEE registry, ranking #1,609 of 33,427 organizations by block count.
Other blocks registered to Beijing Netswift Technology Co.,Ltd.