F4:A4:54:00:00:00 to F4:A4:54:0F:FF:FF
NKT Photonics A/S
Inspect this prefixRegistered address
Blokken 84
Birkerod 3460
Block details
- Registry
- MA-M, MAC Address Block Medium (OUI-28)
- Prefix
- F4:A4:54:0 /28
- Addresses in block
- 1,048,576
- Decimal range
- 268,986,621,100,032 to 268,986,622,148,607
- Address type
- Unicast, universally administered
What this block covers
A 28 bit block. Sixteen of these fit inside one 24 bit prefix, so the first three octets are shared with other registrants.
Any MAC address between F4:A4:54:00:00:00 and F4:A4:54:0F:FF:FF belongs to this assignment. The registrant chooses the remaining 20 bits, so the same prefix can appear on very different products from the same company.