B4:81:BF Meta-Networks, LLC
Every MAC address from B4:81:BF:00:00:00 to B4:81:BF:FF:FF:FF belongs to a block the IEEE assigned to Meta-Networks, LLC. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who B4:81:BF belongs to
Written B4:81:BF, B4-81-BF or B481BF, depending on the system. Look up a full address.
Prefix
B4:81:BF
Organization
Meta-Networks, LLC
Registry
MA-L (a 24-bit OUI)
Addresses
16,777,216
First address
B4:81:BF:00:00:00
Last address
B4:81:BF:FF:FF:FF
Address type
Globally unique, unicast
Registered address
Office 106C, 5/2, Varshavskaya street Saint-Petersburg Saint-Petersburg RU 196128