What this means
The IEEE assigned the MA-S block 70B3D5DEA to Advanced Ventilation Applications, 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:DE:A, it is Advanced Ventilation Applications, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D5DEA?
70B3D5DEA is registered to Advanced Ventilation Applications, Inc. 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. Advanced Ventilation Applications, Inc.'s block covers 4,096 addresses.
What devices use 70B3D5DEA?
Any network device with a MAC address starting 70:B3:D5:DE:A was manufactured by or for Advanced Ventilation Applications, Inc..