What this means
The IEEE assigned the MA-S block 70B3D561B to Nubewell Networks Pvt Ltd. 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:D5:61:B, it is Nubewell Networks Pvt Ltd hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D561B?
70B3D561B is registered to Nubewell Networks Pvt Ltd in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. Nubewell Networks Pvt Ltd's block covers 4,096 addresses.
What devices use 70B3D561B?
Any network device with a MAC address starting 70:B3:D5:61:B was manufactured by or for Nubewell Networks Pvt Ltd.