MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:7A:20:00 /36
Vendor addressJiuHua Road 888, Nantong High-Tech Industrial Development Zone, Nantong Jiangsu CN 226300
Country🇨🇳 China
RegisteredDec 25, 2016
Block range70:B3:D5:7A:20:00– 70:B3:D5:7A:2F: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.
Alpha ESS Co., Ltd. holds 2 registered blocks in the IEEE registry, ranking #1,488 of 33,421 organizations by block count.
Other blocks registered to Alpha ESS Co., Ltd.