What this means
The IEEE assigned the MA-S block 70B3D574F to United States 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:D5:74:F, it is United States Technologies Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D574F?
70B3D574F is registered to United States Technologies 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. United States Technologies Inc.'s block covers 4,096 addresses.
What devices use 70B3D574F?
Any network device with a MAC address starting 70:B3:D5:74:F was manufactured by or for United States Technologies Inc..