This is a user to user forum, you need to email DTV directly.
There is also Caller ID spoofing software that maybe using that phone number. You may need to contact your phone company.
I just read one of the posts from a Google search saying that this is a attempt from someone pretending to be DTV to get you to call back and get your info to get access to your bank account(s).
I do realize this is more of a technical forum, but I have of course tried going to Directv customer care with no resolution. My intent was to check with other users.
If the originator of the call (Directv?) would ever respond when I answer the call then I might suspect some form of fraud, but there has never been any dialogue, however they are not terminating the call, I just keep saying hello and I finally terminate. It is harassment, not a sales pitch, at least none ever heard.
You can try to call directv, they can update your privacy settings and put you on the do not contact at all list for any promotional offers and phone calls. & they won't call you. Then if you are still getting the phone calls, it's most likely not directly from DIRECTV, it could be from a retailer.. im not sure, but goodluck with that!