AT&T queried voice usage records from 06/01/2020 to 06/29/2020. The records are stored in UTC and include connection times and call details.
documents/vol00010-efta01342827-pdf.pdf
{"title":"AT&T Wireline Voice Usage Report","document_date":"2020-06-29","document_type":"tabular","key_locations":["Eastern Time Zone"],"document_subtype":"telecommunications record","key_organizations":["AT&T"],"reference_numbers":["SDNY_GM_00170767","EFTA01342827"]}