MAC prefix 80:3A:59
| Vendor | At&T |
|---|---|
| Prefix | 80:3A:59/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 80:3A:59:00:00:00 – 80:3A:59:FF:FF:FF |
| Notations | 80:3A:59:00:00:0080-3A-59-00-00-00803a.5900.0000803A59000000 |
Frequently asked questions
Which vendor does MAC address 80:3A:59 belong to?
MAC addresses starting with 80:3A:59 are assigned to At&T according to the IEEE registry (prefix length 24 bits).
How many addresses does block 80:3A:59 contain?
The block contains 16,777,216 addresses from 80:3A:59:00:00:00 to 80:3A:59:FF:FF:FF.
Is 80:3A:59 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 At&T have?
At&T holds 7 registered prefixes in total – the full list is on the vendor page.