This is also on Cryptome, I believe, but this one is more accessible, so...
Handy chart of cell phone company records retention periods for 6 major carriers, obtained by the ACLU from a 2010 DOJ list: https://www.aclu.org/cell-phone-location-tracking-request-response-cell-phone-company-data-retention-chart //Alif -- Those who make peaceful change impossible, make violent revolution inevitable. An American Spring is coming: one way or another.