Siemens Industrial Automation Products Ltd., Chengdu MAC address blocks

The IEEE registry carries 5 blocks registered to Siemens Industrial Automation Products Ltd., Chengdu, together 83.9 million addresses, first observed 12 Mar 2013, most recently 24 Jul 2026.

Registered in CN.

Cumulative address space by first-observed date on a linear scale sized to this chart; hover for date and total.

Prefix	Block	Addresses	Country	First registered
10:D6:57	MA-L	16.8 million	CN	8 May 2025
4C:E7:05	MA-L	16.8 million	CN	9 Dec 2022
8C:F3:19	MA-L	16.8 million	CN	20 Oct 2020
D0:06:74	MA-L	16.8 million	CN	24 Jul 2026
E0:DC:A0	MA-L	16.8 million	CN	12 Mar 2013

Every block registered to Siemens Industrial Automation Products Ltd., Chengdu in the IEEE registries, complete. Free-text search also matches former owners.

Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.