00:19:78 Datum Systems, Inc.
Every MAC address from 00:19:78:00:00:00 to 00:19:78:FF:FF:FF belongs to a block the IEEE assigned to Datum Systems, Inc.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:19:78 belongs to
Written 00:19:78, 00-19-78 or 001978, depending on the system. Look up a full address.
Prefix
00:19:78
Organization
Datum Systems, Inc.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:19:78:00:00:00
Last address
00:19:78:FF:FF:FF
Address type
Globally unique, unicast
Registered address
3666 Tiffani Ct. Santa Cruz CA US 95065