MAC prefix 18:66:C7
Shenzhen Libre Technology Co., Ltd
| Vendor | Shenzhen Libre Technology Co., Ltd |
|---|---|
| Short name | LibreTechnol |
| Prefix | 18:66:C7/24 |
| Block type | MA-L (/24, 16,777,216 addresses) |
| Address range | 18:66:C7:00:00:00 – 18:66:C7:FF:FF:FF |
| Notations | 18:66:C7:00:00:0018-66-C7-00-00-001866.c700.00001866C7000000 |
Frequently asked questions
Which vendor does MAC address 18:66:C7 belong to?
MAC addresses starting with 18:66:C7 are assigned to Shenzhen Libre Technology Co., Ltd according to the IEEE registry (prefix length 24 bits).
How many addresses does block 18:66:C7 contain?
The block contains 16,777,216 addresses from 18:66:C7:00:00:00 to 18:66:C7:FF:FF:FF.
Is 18:66:C7 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.