Boston-based Fidelity Investments has been chosen by AT&T Inc. as its sole retirement provider.

This will include the administration and recordkeeping of AT&T’s defined benefit programs, according to a statement. Fidelity already provided the company’s 401(k) plans and a portion of its defined benefit programs.

"AT&T’s leadership has determined that a single provider to meet the retirement needs of our employees and retirees is the best strategy for our company," said Marty Webb, vice president of benefits. "Fidelity’s long history and deep experience in administering the most complex retirement plans in the country make it the right provider for our needs."