Overview:

The Network Subscription Process in CRM is returning Addresses with IDs formatted with zeros at the end, such as: 852352217691194000. Why is this happening?

Answer:

A Comma Separated Values (.CSV) file is imported or edited in Microsoft Excel. It is a known feature in Excel that when importing .CSVs, the last 3 digits of the IDs transform to the closer thousand.  This results in the occurrence described above. 

Use an editor designed specifically for working with .CSV files.  Example: Ron's Editor.

Related Documentation:

Network Introduction and Background

Thank you