Due to the Government shutdown, the amount of robocalls and telemarketers calling you will increase.
Federal Regulators aren’t working, and therefore they cannot enforce the Do Not Call List. Here is a list of apps that you can download that could prevent the frequency of calls, if not all of them:
AT&T’s Call Protect
Hiya Caller ID
Or, you can answer the phone and pull a prank on them, if you have the time.