00:40:BF CHANNEL SYSTEMS INTERN'L INC.
Every MAC address from 00:40:BF:00:00:00 to 00:40:BF:FF:FF:FF belongs to a block the IEEE assigned to CHANNEL SYSTEMS INTERN'L INC.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who 00:40:BF belongs to
Written 00:40:BF, 00-40-BF or 0040BF, depending on the system. Look up a full address.
Prefix
00:40:BF
Organization
CHANNEL SYSTEMS INTERN'L INC.
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
00:40:BF:00:00:00
Last address
00:40:BF:FF:FF:FF
Address type
Globally unique, unicast
Registered address
93 SO. LA PATERA LANE SANTA BARBARA CA US 93117