MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix44:6F:D8:B0:00:00 /28
Vendor addressBeijing fengtai guogongzhuang Beijing CN 100070
Country🇨🇳 China
RegisteredNov 26, 2020
Block range44:6F:D8:B0:00:00– 44:6F:D8:BF: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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44:6F:D8:A0:00:00 /28
ZHEJIANG HIKAILINK TECHNOLOGY Co., Ltd
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44:6F:D8:C0:00:00 /28
Changzhou Haitu Electronic Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Beijing gpthink technology co.,LTD. holds 2 registered blocks in the IEEE registry, ranking #1,604 of 33,421 organizations by block count.
Other blocks registered to Beijing gpthink technology co.,LTD.