zlacker

There’s an LE chart floating around out there, slightly different than this[1] that shows how long carriers keep records.

AT&T in particular keeps records forever. I suspect all the other carriers do as well despite their claims.

1. https://media-cldnry.s-nbcnews.com/image/upload/t_nbcnews-ux...

>>runjak+(OP)
Can confirm AT&T retention. In the late 90's they were already approaching trillions with-a-T metadatums.

Federal LE, telecoms, and "the intelligence community" have always worked closely together.

>>runjak+(OP)
AT&T doesn't merely keep call record data, but does so explicitly to share it with law enforcement. Going back to the 1980s.

<https://www.eff.org/cases/hemisphere>

<https://en.wikipedia.org/wiki/Call_detail_record>

<http://epic.org/privacy/nsa/Section-215-Order-to-Verizon.pdf>