AT&T has issued notices for the redemption in full of all the outstanding principal amount of six series of bonds totaling approximately $4.3 billion and prepayment of term loans totaling $1.0 billion. The total principal of these prepayments is approximately $5.3 billion.
https://business.financialpost.com/pmn/press-releases-pmn/business-wire-news-releases-pmn/att-inc-announces-additional-early-repayment-of-debt