MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:F2:E0:00 /36
Vendor address304, 228 Jiang Chang 3rd Road Shanghai,China Shanghai CN 200436
Country🇨🇳 China
RegisteredDec 13, 2015
Block range70:B3:D5:F2:E0:00– 70:B3:D5:F2:EF:FF
Address capacity4,096
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
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Shanghai JCY Technology Company holds 1 registered blocks in the IEEE registry, ranking #25,966 of 33,427 organizations by block count.