3C:31:78 Qolsys Inc.
Every MAC address from 3C:31:78:00:00:00 to 3C:31:78:FF:FF:FF belongs to a block the IEEE assigned to Qolsys Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 3C:31:78 belongs to
Written 3C:31:78, 3C-31-78 or 3C3178, depending on the system. Look up a full address.
Prefix
3C:31:78
Organization
Qolsys Inc.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
3C:31:78:00:00:00
Last address
3C:31:78:FF:FF:FF
Address type
Globally unique, unicast
Registered address
1900 The Alameda San Jose Ca US 95126
Same organization
Other blocks assigned to Qolsys Inc.
1 more block registered under the same name.