MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix8C:1F:64:80:E0:00 /36
Vendor addressDCU Alpha, Innovation Campus, Old Finglas Road Dublin Glasnevin IE D11 KXN4
Country🇮🇪 Ireland
RegisteredOct 20, 2023
Block range8C:1F:64:80:E0:00– 8C:1F:64:80: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 →
Ownership timeline
- Oct 20, 2023 – Mar 2, 2024 Taoglas IoT Solutions Ltd name changedaddress changed
- Mar 2, 2024 – present TxWireless Limited
Example addresses in this block
Where this block sits
Previous
8C:1F:64:80:D0:00 /36
jooyon electronics Service co.LTD
Next
8C:1F:64:80:F0:00 /36
ASYS Corporation
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
TxWireless Limited holds 1 registered blocks in the IEEE registry, ranking #30,727 of 33,427 organizations by block count.