What this means
The IEEE assigned the MA-L block 1C05B7 to Chongqing Trantor 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 1C:05:B7, it is Chongqing Trantor Technology Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 1C05B7?
1C05B7 is registered to Chongqing Trantor 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. Chongqing Trantor Technology Co., Ltd.'s block covers 16,777,216 addresses.
What devices use 1C05B7?
Any network device with a MAC address starting 1C:05:B7 was manufactured by or for Chongqing Trantor Technology Co., Ltd..