MAC prefix 54:F6:66

Berthold Technologies GmbH and Co.KG

VendorBerthold Technologies GmbH and Co.KG
Short nameBertholdTech
Prefix54:F6:66/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range54:F6:66:00:00:00 – 54:F6:66:FF:FF:FF
Notations54:F6:66:00:00:00
54-F6-66-00-00-00
54f6.6600.0000
54F666000000

Frequently asked questions

Which vendor does MAC address 54:F6:66 belong to?

MAC addresses starting with 54:F6:66 are assigned to Berthold Technologies GmbH and Co.KG according to the IEEE registry (prefix length 24 bits).

How many addresses does block 54:F6:66 contain?

The block contains 16,777,216 addresses from 54:F6:66:00:00:00 to 54:F6:66:FF:FF:FF.

Is 54:F6:66 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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