Who owns MAC prefix C03A55?

C03A55 is registered to TP-Link Systems Inc. in the IEEE MA-L registry.

What devices use C03A55?

Any network device with a MAC address starting C0:3A:55 was manufactured by or for TP-Link Systems Inc..

MA-L · OUI prefix

TP-Link Systems Inc.

Any MAC address starting C0:3A:55 is registered to TP-Link Systems Inc. in US.

OUI prefix	C03A55
Vendor	TP-Link Systems Inc.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	C0:3A:55:00:00:00

What this means

The IEEE assigned the MA-L block C03A55 to TP-Link Systems Inc.. 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 C0:3A:55, it is TP-Link Systems Inc. hardware.

Other TP-Link Systems Inc. prefixes

TP-Link Systems Inc. holds 89 registered blocks in total.

003192 005F67 040F66 04C845 0CEF15 1027F5 105A95 14EBB6 186945 1C61B4 202351 203626 all 89 »

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