70:B3:D5:2A:3 ATT Nussbaum Prüftechnik GmbH
Every MAC address from 70:B3:D5:2A:30:00 to 70:B3:D5:2A:3F:FF belongs to a block the IEEE assigned to ATT Nussbaum Prüftechnik GmbH. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 70:B3:D5:2A:3 belongs to
Written 70:B3:D5:2A:3, 70-B3-D5-2A-3 or 70B3D52A3, depending on the system. Look up a full address.
Prefix
70:B3:D5:2A:3/36
Organization
ATT Nussbaum Prüftechnik GmbH
Registry
MA-S (36 bits)
Addresses
4,096
First address
70:B3:D5:2A:30:00
Last address
70:B3:D5:2A:3F:FF
Address type
Globally unique, unicast
Registered address
Robert-Koch-Str. 35 Kehl-Auenheim DE 77694
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.