F4:A4:54:0 NKT Photonics A/S
Every MAC address from F4:A4:54:00:00:00 to F4:A4:54:0F:FF:FF belongs to a block the IEEE assigned to NKT Photonics A/S. Network cards, phones and other devices it makes carry addresses from here.
Assignment
Who F4:A4:54:0 belongs to
Written F4:A4:54:0, F4-A4-54-0 or F4A4540, depending on the system. Look up a full address.
Prefix
F4:A4:54:0/28
Organization
NKT Photonics A/S
Registry
MA-M (28 bits)
Addresses
1,048,576
First address
F4:A4:54:00:00:00
Last address
F4:A4:54:0F:FF:FF
Address type
Globally unique, unicast
Registered address
Blokken 84 Birkerod DK 3460
Parent block
Inside F4:A4:54
This MA-M block is carved from the 24-bit block F4:A4:54, which the IEEE holds as IEEE Registration Authority and divides among smaller assignees.