What this means
The IEEE assigned the MA-S block 70B3D551E to Fundación Cardiovascular de Colombia. 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:D5:51:E, it is Fundación Cardiovascular de Colombia hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D551E?
70B3D551E is registered to Fundación Cardiovascular de Colombia 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. Fundación Cardiovascular de Colombia's block covers 4,096 addresses.
What devices use 70B3D551E?
Any network device with a MAC address starting 70:B3:D5:51:E was manufactured by or for Fundación Cardiovascular de Colombia.