You asked

I have it on record that the ONS is downloading information from the Personal Demographics Service PDS.

Can you please tell me what information you download from this service?

We said

All admin data collected by ONS is listed in the Statement of Administrative Sources, which is published on the ONS website http://www.ons.gov.uk/ons/guide-method/the-national-statistics-standard/code-of-practice/statement-of-administrative-sources/index.html

IA1292 is the PDS extract. It was acquired by ONS between 2010 and 2014 for the purpose of carrying out feasibility research into Population Migration Statistics Reporting. The feasibility research has now been completed and data are no longer being acquired.