What this means
The IEEE assigned the MA-L block 1C4158 to Gemalto M2M GmbH. 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 1C:41:58, it is Gemalto M2M GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 1C4158?
1C4158 is registered to Gemalto M2M GmbH in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Gemalto M2M GmbH's block covers 16,777,216 addresses.
What devices use 1C4158?
Any network device with a MAC address starting 1C:41:58 was manufactured by or for Gemalto M2M GmbH.