MAC prefix 1C:FD:08:9

Cobham Slip Rings

VendorCobham Slip Rings
Short nameCobhamSlipRi
Prefix1C:FD:08:9/28
Block typeMA-M (/28, 1,048,576 addresses)
Address range1C:FD:08:90:00:00 – 1C:FD:08:9F:FF:FF
Notations1C:FD:08:90:00:00
1C-FD-08-90-00-00
1cfd.0890.0000
1CFD08900000

Frequently asked questions

Which vendor does MAC address 1C:FD:08:9 belong to?

MAC addresses starting with 1C:FD:08:9 are assigned to Cobham Slip Rings according to the IEEE registry (prefix length 28 bits).

How many addresses does block 1C:FD:08:9 contain?

The block contains 1,048,576 addresses from 1C:FD:08:90:00:00 to 1C:FD:08:9F:FF:FF.

Is 1C:FD:08:9 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.

Nearby entries