What this means
The IEEE assigned the MA-L block 0CA42A to OB Telecom Electronic Technology Co., Ltd. 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 0C:A4:2A, it is OB Telecom Electronic Technology Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 0CA42A?
0CA42A is registered to OB Telecom Electronic Technology Co., Ltd 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. OB Telecom Electronic Technology Co., Ltd's block covers 16,777,216 addresses.
What devices use 0CA42A?
Any network device with a MAC address starting 0C:A4:2A was manufactured by or for OB Telecom Electronic Technology Co., Ltd.