78:72:64:C Comcast-SRL
Every MAC address from 78:72:64:C0:00:00 to 78:72:64:CF:FF:FF belongs to a block the IEEE assigned to Comcast-SRL. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 78:72:64:C belongs to
Written 78:72:64:C, 78-72-64-C or 787264C, depending on the system. Look up a full address.
Prefix
78:72:64:C/28
Organization
Comcast-SRL
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
78:72:64:C0:00:00
Last address
78:72:64:CF:FF:FF
Address type
Globally unique, unicast
Registered address
Alejo Martinez 17 Sosua Puerto Plata DO 34443
Parent block
Inside 78:72:64
This MA-M block is carved from the 24-bit block 78:72:64, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.
Same organization
Other blocks assigned to Comcast-SRL
2 more blocks registered under the same name.