70:B3:D5:81:A Joehl & Koeferli AG
Every MAC address from 70:B3:D5:81:A0:00 to 70:B3:D5:81:AF:FF belongs to a block the IEEE assigned to Joehl & Koeferli AG. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:81:A belongs to
Written 70:B3:D5:81:A, 70-B3-D5-81-A or 70B3D581A, depending on the system. Look up a full address.
Prefix
70:B3:D5:81:A/36
Organization
Joehl & Koeferli AG
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:81:A0:00
Last address
70:B3:D5:81:AF:FF
Address type
Globally unique, unicast
Registered address
Wittenwilerstrasse 31 Aadorf TG CH 8355
Parent block
Inside 70:B3:D5
This MA-S block is carved from the 24-bit block 70:B3:D5, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.