MAC prefix DA:2B:DD
| Vendor | AT&T, Inc. |
|---|---|
| Short name | AT&T |
| Prefix | DA:2B:DD/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | DA:2B:DD:00:00:00 – DA:2B:DD:FF:FF:FF |
| Notations | DA:2B:DD:00:00:00DA-2B-DD-00-00-00da2b.dd00.0000DA2BDD000000 |
Frequently asked questions
Which vendor does MAC address DA:2B:DD belong to?
MAC addresses starting with DA:2B:DD are assigned to AT&T, Inc. according to the IEEE registry (prefix length 24 bits).
How many addresses does block DA:2B:DD contain?
The block contains 16,777,216 addresses from DA:2B:DD:00:00:00 to DA:2B:DD:FF:FF:FF.
Is DA:2B:DD a unicast or multicast address?
The least significant bit of the first byte is 0 – it is a unicast address. The second least significant bit is set, so the address is locally 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, Inc. have?
AT&T, Inc. holds 7 registered prefixes in total – the full list is on the vendor page.