F4:20:55:B Synaps Technology S.r.l.
Every MAC address from F4:20:55:B0:00:00 to F4:20:55:BF:FF:FF belongs to a block the IEEE assigned to Synaps Technology S.r.l.. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who F4:20:55:B belongs to
Written F4:20:55:B, F4-20-55-B or F42055B, depending on the system. Look up a full address.
Prefix
F4:20:55:B/28
Organization
Synaps Technology S.r.l.
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
F4:20:55:B0:00:00
Last address
F4:20:55:BF:FF:FF
Address type
Globally unique, unicast
Registered address
via Pietraferrata 9/1 Trieste TS IT 34147
Parent block
Inside F4:20:55
This MA-M block is carved from the 24-bit block F4:20:55, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.