What this means
The IEEE assigned the MA-S block 70B3D583A to EMDEP CENTRO TECNOLOGICO MEXICO. 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:D5:83:A, it is EMDEP CENTRO TECNOLOGICO MEXICO hardware.
Frequently Asked Questions
Who owns MAC prefix 70B3D583A?
70B3D583A is registered to EMDEP CENTRO TECNOLOGICO MEXICO 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. EMDEP CENTRO TECNOLOGICO MEXICO's block covers 4,096 addresses.
What devices use 70B3D583A?
Any network device with a MAC address starting 70:B3:D5:83:A was manufactured by or for EMDEP CENTRO TECNOLOGICO MEXICO.