MAC prefix 64:1E:81

Dowslake Microsystems

VendorDowslake Microsystems
Short nameDowslakeMicr
Prefix64:1E:81/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range64:1E:81:00:00:00 – 64:1E:81:FF:FF:FF
Notations64:1E:81:00:00:00
64-1E-81-00-00-00
641e.8100.0000
641E81000000

Frequently asked questions

Which vendor does MAC address 64:1E:81 belong to?

MAC addresses starting with 64:1E:81 are assigned to Dowslake Microsystems according to the IEEE registry (prefix length 24 bits).

How many addresses does block 64:1E:81 contain?

The block contains 16,777,216 addresses from 64:1E:81:00:00:00 to 64:1E:81:FF:FF:FF.

Is 64:1E: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.

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