MAC prefix 6C:83:66

Nanjing SAC Power Grid Automation Co., Ltd.

VendorNanjing SAC Power Grid Automation Co., Ltd.
Short nameNanjingSACPo
Prefix6C:83:66/24
Block typeMA-L (/24, 16,777,216 addresses)
Address range6C:83:66:00:00:00 – 6C:83:66:FF:FF:FF
Notations6C:83:66:00:00:00
6C-83-66-00-00-00
6c83.6600.0000
6C8366000000

Frequently asked questions

Which vendor does MAC address 6C:83:66 belong to?

MAC addresses starting with 6C:83:66 are assigned to Nanjing SAC Power Grid Automation Co., Ltd. according to the IEEE registry (prefix length 24 bits).

How many addresses does block 6C:83:66 contain?

The block contains 16,777,216 addresses from 6C:83:66:00:00:00 to 6C:83:66:FF:FF:FF.

Is 6C:83:66 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.

Which other MAC prefixes does Nanjing SAC Power Grid Automation Co., Ltd. have?

Nanjing SAC Power Grid Automation Co., Ltd. holds 3 registered prefixes in total – the full list is on the vendor page.

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