MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:A0:50:00 /36
Vendor addressHiililaiturinkuja 2 Helsinki FI 00180
Country🇫🇮 Finland
RegisteredDec 18, 2016
Block range70:B3:D5:A0:50:00– 70:B3:D5:A0:5F: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
- Dec 18, 2016 – Sep 18, 2019 Transas Marine Limited name changedaddress changed
- Sep 18, 2019 – Feb 16, 2024 Wartsila Voyage Limited name changedaddress changedcountry changed
- Feb 16, 2024 – present Wartsila Voyage Oy
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.
Wartsila Voyage Oy holds 9 registered blocks in the IEEE registry, ranking #365 of 33,421 organizations by block count.
Other blocks registered to Wartsila Voyage Oy