What devices use 70B3D5B4B?

Any network device with a MAC address starting 70:B3:D5:B4:B was manufactured by or for Network Customizing Technologies Inc.

MA-S · OUI prefix

Network Customizing Technologies Inc

Q: Who owns MAC prefix 70B3D5B4B?

70B3D5B4B is registered to Network Customizing Technologies Inc in the IEEE MA-S registry.

Any MAC address starting 70:B3:D5:B4:B is registered to Network Customizing Technologies Inc in KR.

OUI prefix	70B3D5B4B
Vendor	Network Customizing Technologies Inc
Registry	MA-S (36-bit, small block)
Country	KR
Example MAC	70:B3:D5:B4:B:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5B4B to Network Customizing Technologies 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:B4:B, it is Network Customizing Technologies Inc hardware.

Look up another MAC