MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
PrefixF4:1A:79:C0:00:00 /28
Vendor addressRoom 103, 105, Floor 1, Building A-1. Zhong guan cun Dongsheng Technology Park (Northern Territory), 66 Xixiaokou Rd. Haidian Disct. Beijing, China. Beijing China CN 100192
Country🇨🇳 China
RegisteredAug 29, 2023
Block rangeF4:1A:79:C0:00:00– F4:1A:79:CF: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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F4:1A:79:B0:00:00 /28
Shenzhen High Speed Technology Co., Ltd
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F4:1A:79:D0:00:00 /28
Directed Electronics OE Pty Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
TA Technology (Shanghai) Co., Ltd holds 1 registered blocks in the IEEE registry, ranking #29,028 of 33,421 organizations by block count.