MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix1C:87:76:00:00:00 /28
Vendor addressJingxin Building, 2045 Suite , Chaoyang District Beijing CN 100027
Country🇨🇳 China
RegisteredSep 25, 2015
Block range1C:87:76:00:00:00– 1C:87:76:0F: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 →
Ownership timeline
- Sep 25, 2015 – Apr 5, 2016 Dspread technology co.,ltd name changedaddress changed
- Apr 5, 2016 – present Dspread Technology (Beijing) Inc.
Example addresses in this block
Where this block sits
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Dspread Technology (Beijing) Inc. holds 11 registered blocks in the IEEE registry, ranking #275 of 33,421 organizations by block count.
Other blocks registered to Dspread Technology (Beijing) Inc.