I do not use this, but some may. Mat JohnsonVerified account @mat_johnson Mat Johnson Retweeted Mat Johnson Download your Facebook account .zip off their site, unzip it, then go to the HTML folder, open the contact_info.htm file. See records of who you've talked to on your cell—not with the app, just on your regular cellphone—and for how long. Mat Johnson added, Mat JohnsonVerified account @mat_johnson Oh wow my deleted Facebook Zip file contains info on every single phone cellphone call and text I made for about a year- cool totally not creepy. 4:25 PM - 23 Mar 2018
I didn't have any calls in that file, just a list of my contacts which I allowed the facebook app to access by granting it permissions during the install.