Calix Inc. announced the availability of its unaudited Second Quarter 2025 Financial Results in a letter to stockholders, which has been posted on the investor relations section of its website. To view the letter to stockholders, please visit the Calix investor relations website. A conference call to discuss these results with President and CEO Michael Weening and CFO Cory Sindelar will be held on July 22, 2025, at 5:30 a.m. Pacific Time / 8:30 a.m. Eastern Time. The live webcast of the conference call can be accessed by visiting the Events section of the Calix Investor Relations website, or by dialing (877) 407-4019, or international (201) 689-8337, with conference ID#13754440. Participants may also click this link for instant telephone access to the event.