Is there a way to get copy of my past bills from December through April, 2016, 2017, and 2018?

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@CarrollM wrote:

I have a prepaid account and have been using my AT&T phone in Mexico for four plus months every year. I'm wondering if there's a way to get copy of my bills from December through April, 2016, 2017, and 2018. I could use them to prove I was in Mexico. Thank you in advance for your help.

 

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If you have a prepaid account, there are no bills and only 6 months of usage are retained in your online account.