74:87:BB Ciena Corporation
Every MAC address from 74:87:BB:00:00:00 to 74:87:BB: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 74:87:BB belongs to
Written 74:87:BB, 74-87-BB or 7487BB, depending on the system. Look up a full address.
Prefix
74:87:BB
Organization
Ciena Corporation
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
74:87:BB:00:00:00
Last address
74:87:BB: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.