What this means
The IEEE assigned the MA-S block 70B3D5423 to Harman Connected Services Corporation India 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:D5:42:3, it is Harman Connected Services Corporation India Pvt. Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5423?
70B3D5423 is registered to Harman Connected Services Corporation India 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. Harman Connected Services Corporation India Pvt. Ltd.'s block covers 4,096 addresses.
What devices use 70B3D5423?
Any network device with a MAC address starting 70:B3:D5:42:3 was manufactured by or for Harman Connected Services Corporation India Pvt. Ltd..