78:5F:A4 Ciena Corporation
Every MAC address from 78:5F:A4:00:00:00 to 78:5F:A4:FF:FF:FF belongs to a block the IEEE assigned to Ciena Corporation. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 78:5F:A4 belongs to
Written 78:5F:A4, 78-5F-A4 or 785FA4, depending on the system. Look up a full address.
Prefix
78:5F:A4
Organization
Ciena Corporation
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
78:5F:A4:00:00:00
Last address
78:5F:A4:FF:FF:FF
Address type
Globally unique, unicast
Registered address
7035 Ridge Road Hanover MD US 21076
Same organization
Other blocks assigned to Ciena Corporation
29 more blocks registered under the same name.