What this means
The IEEE assigned the MA-M block 8C5570B to SERNET (SUZHOU) TECHNOLOGIES CORPORATION. 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 8C:55:70:B, it is SERNET (SUZHOU) TECHNOLOGIES CORPORATION hardware.
Frequently Asked Questions
Who owns MAC prefix 8C5570B?
8C5570B is registered to SERNET (SUZHOU) TECHNOLOGIES CORPORATION 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. SERNET (SUZHOU) TECHNOLOGIES CORPORATION's block covers 1,048,576 addresses.
What devices use 8C5570B?
Any network device with a MAC address starting 8C:55:70:B was manufactured by or for SERNET (SUZHOU) TECHNOLOGIES CORPORATION.