MAC prefix C0:91:B9
| Vendor | Amazon Technologies Inc. |
|---|---|
| Short name | AmazonTechno |
| Prefix | C0:91:B9/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | C0:91:B9:00:00:00 – C0:91:B9:FF:FF:FF |
| Notations | C0:91:B9:00:00:00C0-91-B9-00-00-00c091.b900.0000C091B9000000 |
Frequently asked questions
Which vendor does MAC address C0:91:B9 belong to?
MAC addresses starting with C0:91:B9 are assigned to Amazon Technologies Inc. according to the IEEE registry (prefix length 24 bits).
How many addresses does block C0:91:B9 contain?
The block contains 16,777,216 addresses from C0:91:B9:00:00:00 to C0:91:B9:FF:FF:FF.
Is C0:91:B9 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 Amazon Technologies Inc. have?
Amazon Technologies Inc. holds 208 registered prefixes in total – the full list is on the vendor page.