MAC prefix 20:66:FD
Constell8 Nv
| Vendor | Constell8 Nv |
|---|---|
| Short name | Constell8 |
| Prefix | 20:66:FD/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 20:66:FD:00:00:00 – 20:66:FD:FF:FF:FF |
| Notations | 20:66:FD:00:00:0020-66-FD-00-00-002066.fd00.00002066FD000000 |
Frequently asked questions
Which vendor does MAC address 20:66:FD belong to?
MAC addresses starting with 20:66:FD are assigned to Constell8 Nv according to the IEEE registry (prefix length 24 bits).
How many addresses does block 20:66:FD contain?
The block contains 16,777,216 addresses from 20:66:FD:00:00:00 to 20:66:FD:FF:FF:FF.
Is 20:66:FD a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The U/L bit is 0, so the address is globally unique (universally administered).
How do I find the MAC address of my device?
On Linux use ip link, on Windows getmac /v or ipconfig /all, on macOS ifconfig. Note: phones and recent operating systems often use random, locally administered addresses on Wi-Fi.