MAC prefix A4:59:BF

Silicon Laboratories

VendorSilicon Laboratories
Short nameSiliconLabor
PrefixA4:59:BF/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeA4:59:BF:00:00:00 – A4:59:BF:FF:FF:FF
NotationsA4:59:BF:00:00:00
A4-59-BF-00-00-00
a459.bf00.0000
A459BF000000

Frequently asked questions

Which vendor does MAC address A4:59:BF belong to?

MAC addresses starting with A4:59:BF are assigned to Silicon Laboratories according to the IEEE registry (prefix length 24 bits).

How many addresses does block A4:59:BF contain?

The block contains 16,777,216 addresses from A4:59:BF:00:00:00 to A4:59:BF:FF:FF:FF.

Is A4:59:BF 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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