MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:10:F0:00 /36
Vendor addressRua Paulo Elias, 216 São Carlos São Paulo BR 13564400
Country🇧🇷 Brazil
RegisteredJul 1, 2021
Block range8C:1F:64:10:F0:00– 8C:1F:64:10:FF: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 1, 2021 – Mar 26, 2025 HUMAX Co., Ltd. name changedaddress changedcountry changed
- Mar 26, 2025 – present Scenario Automation
Example addresses in this block
Where this block sits
Previous
8C:1F:64:10:B0:00 /36
Red Lion Europe GmbH
Next
8C:1F:64:11:00:00 /36
Xian Linking Backhaul Telecom Technology Co.,Ltd
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Scenario Automation holds 7 registered blocks in the IEEE registry, ranking #445 of 33,427 organizations by block count.
Other blocks registered to Scenario Automation