MAC prefix 08:05:81
| Vendor | Roku, Inc. |
|---|---|
| Short name | Roku |
| Prefix | 08:05:81/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 08:05:81:00:00:00 – 08:05:81:FF:FF:FF |
| Notations | 08:05:81:00:00:0008-05-81-00-00-000805.8100.0000080581000000 |
Frequently asked questions
Which vendor does MAC address 08:05:81 belong to?
MAC addresses starting with 08:05:81 are assigned to Roku, Inc. according to the IEEE registry (prefix length 24 bits).
How many addresses does block 08:05:81 contain?
The block contains 16,777,216 addresses from 08:05:81:00:00:00 to 08:05:81:FF:FF:FF.
Is 08:05:81 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 Roku, Inc. have?
Roku, Inc. holds 32 registered prefixes in total – the full list is on the vendor page.