MAC prefix 18:20:12

Aztech Associates Inc.

VendorAztech Associates Inc.
Short nameAztechAssoci
Prefix18:20:12/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range18:20:12:00:00:00 – 18:20:12:FF:FF:FF
Notations18:20:12:00:00:00
18-20-12-00-00-00
1820.1200.0000
182012000000

Frequently asked questions

Which vendor does MAC address 18:20:12 belong to?

MAC addresses starting with 18:20:12 are assigned to Aztech Associates Inc. according to the IEEE registry (prefix length 24 bits).

How many addresses does block 18:20:12 contain?

The block contains 16,777,216 addresses from 18:20:12:00:00:00 to 18:20:12:FF:FF:FF.

Is 18:20:12 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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