B4:DB:91 CELESTICA INC.
Every MAC address from B4:DB:91:00:00:00 to B4:DB:91:FF:FF:FF belongs to a block the IEEE assigned to CELESTICA INC.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:DB:91 belongs to
Written B4:DB:91, B4-DB-91 or B4DB91, depending on the system. Look up a full address.
Prefix
B4:DB:91
Organization
CELESTICA INC.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
B4:DB:91:00:00:00
Last address
B4:DB:91:FF:FF:FF
Address type
Globally unique, unicast
Registered address
1900-5140 Yonge Street PO Box 42 Toronto Ontario CA M2N 6L7