What this means
The IEEE assigned the MA-L block 0C7523 to BEIJING GEHUA CATV NETWORK 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:75:23, it is BEIJING GEHUA CATV NETWORK CO.,LTD hardware.
Frequently Asked Questions
Who owns MAC prefix 0C7523?
0C7523 is registered to BEIJING GEHUA CATV NETWORK 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. BEIJING GEHUA CATV NETWORK CO.,LTD's block covers 16,777,216 addresses.
What devices use 0C7523?
Any network device with a MAC address starting 0C:75:23 was manufactured by or for BEIJING GEHUA CATV NETWORK CO.,LTD.