78:D8:00:4 CS Instruments GmbH
Every MAC address from 78:D8:00:40:00:00 to 78:D8:00:4F:FF:FF belongs to a block the IEEE assigned to CS Instruments GmbH. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 78:D8:00:4 belongs to
Written 78:D8:00:4, 78-D8-00-4 or 78D8004, depending on the system. Look up a full address.
Prefix
78:D8:00:4/28
Organization
CS Instruments GmbH
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
78:D8:00:40:00:00
Last address
78:D8:00:4F:FF:FF
Address type
Globally unique, unicast
Registered address
Zindelsteiner Straße 15 VS-Tannheim DE 78052
Parent block
Inside 78:D8:00
This MA-M block is carved from the 24-bit block 78:D8:00, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.