What this means
The IEEE assigned the MA-M block 1C59742 to Chongqing Taishan Cable 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:59:74:2, it is Chongqing Taishan Cable Co., Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 1C59742?
1C59742 is registered to Chongqing Taishan Cable Co., Ltd in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Chongqing Taishan Cable Co., Ltd's block covers 1,048,576 addresses.
What devices use 1C59742?
Any network device with a MAC address starting 1C:59:74:2 was manufactured by or for Chongqing Taishan Cable Co., Ltd.