What devices use B45CA4?

Any network device with a MAC address starting B4:5C:A4 was manufactured by or for Thing-talk Wireless Communication Technologies Corporation Limited.

MA-L · OUI prefix

Thing-talk Wireless Communication Technologies Corporation Limited

Q: Who owns MAC prefix B45CA4?

B45CA4 is registered to Thing-talk Wireless Communication Technologies Corporation Limited in the IEEE MA-L registry.

Any MAC address starting B4:5C:A4 is registered to Thing-talk Wireless Communication Technologies Corporation Limited in CN.

OUI prefix	B45CA4
Vendor	Thing-talk Wireless Communication Technologies Corporation Limited
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B4:5C:A4:00:00:00

What this means

The IEEE assigned the MA-L block B45CA4 to Thing-talk Wireless Communication Technologies Corporation Limited. 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 B4:5C:A4, it is Thing-talk Wireless Communication Technologies Corporation Limited hardware.

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