What this means
The IEEE assigned the MA-S block 70B3D57DD to Excel Medical Electronics LLC. 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:D5:7D:D, it is Excel Medical Electronics LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D57DD?
70B3D57DD is registered to Excel Medical Electronics LLC 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. Excel Medical Electronics LLC's block covers 4,096 addresses.
What devices use 70B3D57DD?
Any network device with a MAC address starting 70:B3:D5:7D:D was manufactured by or for Excel Medical Electronics LLC.