Operator
Greetings, and welcome to the Calix First Quarter 2021 Earnings Call. [Operator Instructions]. A question-and-answer session will follow the formal presentation. [Operator Instructions]. It is now my pleasure to introduce Tom Dinges, Director of Investor Relations. Thank you. You may begin.
Thomas J. Dinges --
Director of Investor Relations
Thank you, operator, and good morning, everyone. Thank you for joining our first quarter 2021 earnings call. Today on the call, we have CEO, Carl Russo; Chief Financial Officer, Cory Sindelar; and President and Chief Operating Officer, Michael Weening. As a reminder, yesterday, after the close of market, we released our letter to stockholders in an 8-K filing, as well as on the Investor Relations section of the Calix website. This conference call will be available for audio replay in the Investor Relations section of the Calix website.