MAC prefix CC:5D:57

Information System Research Institute,Inc.

VendorInformation System Research Institute,Inc.
Short nameInformationS
PrefixCC:5D:57/24
Block typeMA-L (/24, 16,777,216 addresses)
Address rangeCC:5D:57:00:00:00 – CC:5D:57:FF:FF:FF
NotationsCC:5D:57:00:00:00
CC-5D-57-00-00-00
cc5d.5700.0000
CC5D57000000

Frequently asked questions

Which vendor does MAC address CC:5D:57 belong to?

MAC addresses starting with CC:5D:57 are assigned to Information System Research Institute,Inc. according to the IEEE registry (prefix length 24 bits).

How many addresses does block CC:5D:57 contain?

The block contains 16,777,216 addresses from CC:5D:57:00:00:00 to CC:5D:57:FF:FF:FF.

Is CC:5D:57 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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