MAC prefix 00:40:FC

Ibr Computer Technik Gmbh

VendorIbr Computer Technik Gmbh
Short nameIbrComputerT
Prefix00:40:FC/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range00:40:FC:00:00:00 – 00:40:FC:FF:FF:FF
Notations00:40:FC:00:00:00
00-40-FC-00-00-00
0040.fc00.0000
0040FC000000

Frequently asked questions

Which vendor does MAC address 00:40:FC belong to?

MAC addresses starting with 00:40:FC are assigned to Ibr Computer Technik Gmbh according to the IEEE registry (prefix length 24 bits).

How many addresses does block 00:40:FC contain?

The block contains 16,777,216 addresses from 00:40:FC:00:00:00 to 00:40:FC:FF:FF:FF.

Is 00:40:FC 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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