Who owns MAC prefix 70B3D5230?

70B3D5230 is registered to CT Company in the IEEE MA-S registry.

What devices use 70B3D5230?

Any network device with a MAC address starting 70:B3:D5:23:0 was manufactured by or for CT Company.

MA-S · OUI prefix

CT Company

Any MAC address starting 70:B3:D5:23:0 is registered to CT Company in TW.

OUI prefix	70B3D5230
Vendor	CT Company
Registry	MA-S (36-bit, small block)
Country	TW
Example MAC	70:B3:D5:23:0:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5230 to CT Company. 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:D5:23:0, it is CT Company hardware.

Other CT Company prefixes

CT Company holds 10 registered blocks in total.

1874E23 70B3D5005 70B3D52D4 70B3D539F 70B3D53AD 70B3D550D 70B3D55A3 70B3D55D5 70B3D5667

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