MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF4:70:0C:20:00:00 /28
Vendor address11th Floor Block A, Beijing Normal University Science & Technology Mansion, No.12 Xueyuan South Road,Haidian District,Beijing, China Beijing CN 100088
Country🇨🇳 China
RegisteredSep 9, 2021
Block rangeF4:70:0C:20:00:00– F4:70:0C: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
F4:70:0C:10:00:00 /28
Shenzhen Excelland Technology Co., Ltd.
Next
F4:70:0C:30:00:00 /28
Union Source Technology(HK)LTD
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Beijing ASU Tech Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #1,601 of 33,421 organizations by block count.