MA-S: a /36 block (also called an OUI-36 assignment), IEEE's smallest, covering 4,096 addresses.
Prefix70:B3:D5:AE:20:00 /36
Vendor addressHiililaiturinkuja 2 Helsinki FI 00180
Country🇫🇮 Finland
RegisteredJun 8, 2014
Block range70:B3:D5:AE:20:00– 70:B3:D5:AE: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 →
Ownership timeline
- Jun 8, 2014 – Sep 18, 2019 Transas Marine Limited name changedaddress changedcountry 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
Previous
70:B3:D5:AE:10:00 /36
DimoCore Corporation
Next
70:B3:D5:AE:30:00 /36
Zhejiang Wellsun Electric Meter Co.,Ltd
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