Who owns MAC prefix 70B3D58B9?

70B3D58B9 is registered to Toptech Systems, Inc. in the IEEE MA-S registry.

What devices use 70B3D58B9?

Any network device with a MAC address starting 70:B3:D5:8B:9 was manufactured by or for Toptech Systems, Inc..

MA-S · OUI prefix

Toptech Systems, Inc.

Any MAC address starting 70:B3:D5:8B:9 is registered to Toptech Systems, Inc. in US.

OUI prefix	70B3D58B9
Vendor	Toptech Systems, Inc.
Registry	MA-S (36-bit, small block)
Country	US
Example MAC	70:B3:D5:8B:9:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D58B9 to Toptech 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 70:B3:D5:8B:9, it is Toptech Systems, Inc. hardware.

Other Toptech Systems, Inc. prefixes

Toptech Systems, Inc. holds 2 registered blocks in total.

70B3D5E97

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