MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:B7:10:00 /36
Vendor address39 HUNTER ST SYDNEY NSW AU 2000
Country🇦🇺 Australia
RegisteredJul 22, 2018
Block range70:B3:D5:B7:10:00– 70:B3:D5:B7:1F: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 →
Ownership timeline
- Jul 22, 2018 – Aug 23, 2020 Private name changedaddress changedcountry changed
- Aug 23, 2020 – present Optiver Pty Ltd
Example addresses in this block
Where this block sits
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70:B3:D5:B7:00:00 /36
Torion Plasma Corporation
Next
70:B3:D5:B7:20:00 /36
UB330.net d.o.o.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Optiver Pty Ltd holds 1 registered blocks in the IEEE registry, ranking #22,202 of 33,427 organizations by block count.