Who owns MAC prefix 7C1EB3?

7C1EB3 is registered to 2N TELEKOMUNIKACE a.s. in the IEEE MA-L registry.

What devices use 7C1EB3?

Any network device with a MAC address starting 7C:1E:B3 was manufactured by or for 2N TELEKOMUNIKACE a.s..

MA-L · OUI prefix

2N TELEKOMUNIKACE a.s.

Any MAC address starting 7C:1E:B3 is registered to 2N TELEKOMUNIKACE a.s..

OUI prefix	7C1EB3
Vendor	2N TELEKOMUNIKACE a.s.
Registry	MA-L (24-bit, large block)
Example MAC	7C:1E:B3:00:00:00

What this means

The IEEE assigned the MA-L block 7C1EB3 to 2N TELEKOMUNIKACE a.s.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 7C:1E:B3, it is 2N TELEKOMUNIKACE a.s. hardware.

Look up another MAC