MAC prefix 48:57:DD
| Vendor | Facebook Inc |
|---|---|
| Short name | |
| Prefix | 48:57:DD/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 48:57:DD:00:00:00 – 48:57:DD:FF:FF:FF |
| Notations | 48:57:DD:00:00:0048-57-DD-00-00-004857.dd00.00004857DD000000 |
Frequently asked questions
Which vendor does MAC address 48:57:DD belong to?
MAC addresses starting with 48:57:DD are assigned to Facebook Inc according to the IEEE registry (prefix length 24 bits).
How many addresses does block 48:57:DD contain?
The block contains 16,777,216 addresses from 48:57:DD:00:00:00 to 48:57:DD:FF:FF:FF.
Is 48:57:DD 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.
Which other MAC prefixes does Facebook Inc have?
Facebook Inc holds 2 registered prefixes in total – the full list is on the vendor page.