FEDERAL COMMUNICATIONS COMMISSION 
WASHINGTON 
OFFICE OF 
THE CHAIRMAN 
The Honorable Amy Klobuchar 
United States Senate 
302 Hart Senate Office Building 
Washington, D.C. 20510 
Dear Senator Klobuchar: 
Thank you for your letter regarding the March gth outage of911 service suffered by 
AT&T customers. I share your concern that 911 service remains a reliable lifeline for all 
Americans. 
Immediately after learning of the outage, I directed the Public Safety and Homeland 
Security Bureau to investigate the situation. I am pleased to provide you with a copy of the 
Bureau's report, which analyzes the cause of the outage and provides recommendations for next 
steps to help prevent or mitigate similar events in the future. 
I appreciate your interest in this matter. Please let me know ifl can be of any further 
assistance. 
Sincerely, 
Ajit V. Pai 
Enclosure 
July 18, 2017
OFFICE OF 
THE CHAIRMAN 
FEDERAL COMMUNICATIONS COMMISSION 
WASHINGTON 
The Honorable Anna G. Eshoo 
U.S. House of Representatives 
241 Cannon House Office Building 
Washington, D.C. 20515 
Dear Congresswoman Eshoo: 
Thank you for your letter regarding the March gth outage of911 service suffered by 
AT&T customers. I share your concern that 911 service remains a reliable lifeline for all 
Americans. 
Immediately after learning of the outage, I directed the Public Safety and Homeland 
Security Bureau to investigate the situation. I am pleased to provide you with a copy of the 
Bureau's report, which analyzes the cause of the outage and provides recommendations for next 
steps to help prevent or mitigate similar events in the future. 
I appreciate your interest in this matter. Please let me know if I can be of any further 
assistance. 
Enclosure 
July 18, 2017