Ask HN: Anyone tried requesting personal data from their GSM provider via GDPR?

[h0mEDw]

I'm thinking of doing that to see if they collect and if so how long do they store any of the following information:

  - Call history, including metadata and potentially also contents;
  - Text messages, same as with calls: metadata and potentially the contents;
  - Location history;
  - Data connection activity, again: metadata and potentially the contents;
  - IMEIs of the devices I used;
  - Any other types of information I did not think of.

In short - I'd like a summary like http://myactivity.google.com/, but from my GSM provider.

I'm not saying that all of this is collected and stored, but with GDPR we can demand a response and check. I couldn't find via Google any writeup by anyone doing such a request. If no one has done it I think I'd like to do it myself. I'm in a EU country and so is my GSM provider.