MAC prefix E4:56:AC

Silicon Laboratories

VendorSilicon Laboratories
Short nameSiliconLabor
PrefixE4:56:AC/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeE4:56:AC:00:00:00 – E4:56:AC:FF:FF:FF
NotationsE4:56:AC:00:00:00
E4-56-AC-00-00-00
e456.ac00.0000
E456AC000000

Frequently asked questions

Which vendor does MAC address E4:56:AC belong to?

MAC addresses starting with E4:56:AC are assigned to Silicon Laboratories according to the IEEE registry (prefix length 24 bits).

How many addresses does block E4:56:AC contain?

The block contains 16,777,216 addresses from E4:56:AC:00:00:00 to E4:56:AC:FF:FF:FF.

Is E4:56:AC 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 Silicon Laboratories have?

Silicon Laboratories holds 162 registered prefixes in total – the full list is on the vendor page.

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