- Prefix
- 74:87:BB 74-87-BB 7487.BB
- Block type
- MA-L (16,777,216 addresses)
- Address range
- 74:87:BB:00:00:00 – 74:87:BB:FF:FF:FF
- Organization
- Ciena Corporation
- Registered address
- 7035 Ridge Road, Hanover MD 21076, US
- Country
- United States (US)
- Address bits
- Unicast (I/G bit 0), globally unique (U/L bit 0)
Look up 74:87:BB:00:00:00
Ciena Corporation holds 24 blocks in total: see all. Source: IEEE Registration Authority public listing.