MA-M: a /28 block, one IEEE assigns within a larger OUI when a full /24 isn't needed, covering 1,048,576 addresses.
Prefix3C:39:E7:B0:00:00 /28
Vendor addressNanGuang road, DongHua design house 758 room Shenzhen Guangdong CN 518000
Country🇨🇳 China
RegisteredOct 16, 2015
Block range3C:39:E7:B0:00:00– 3C:39:E7: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
Previous
3C:39:E7:A0:00:00 /28
iiM AG
Next
3C:39:E7:C0:00:00 /28
VANSTONE ELECTRONIC (BEIJING)CO,. LTD.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Chipsguide technology CO.,LTD. holds 2 registered blocks in the IEEE registry, ranking #1,729 of 33,427 organizations by block count.