What this means
The IEEE assigned the MA-L block 00135C to OnSite Systems, Inc.. 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 00:13:5C, it is OnSite Systems, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 00135C?
00135C is registered to OnSite Systems, Inc. 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. OnSite Systems, Inc.'s block covers 16,777,216 addresses.
What devices use 00135C?
Any network device with a MAC address starting 00:13:5C was manufactured by or for OnSite Systems, Inc..