What this means
The IEEE assigned the MA-S block 70B3D5A61 to Omsk Manufacturing Association named after A.S. Popov. 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:A6:1, it is Omsk Manufacturing Association named after A.S. Popov hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5A61?
70B3D5A61 is registered to Omsk Manufacturing Association named after A.S. Popov 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. Omsk Manufacturing Association named after A.S. Popov's block covers 4,096 addresses.
What devices use 70B3D5A61?
Any network device with a MAC address starting 70:B3:D5:A6:1 was manufactured by or for Omsk Manufacturing Association named after A.S. Popov.