Calix to Post Fourth Quarter 2020 Stockholder Letter with Results on January 27th

Calix, Inc. (NYSE:CALX) today announced that the company will post its fourth quarter 2020 stockholder letter on the Calix Investor Relations website at http://investor-relations.calix.com/ on Wednesday, January 27^th at 2:00 p.m. Pacific Time (5:00 p.m. Eastern Time). The release of the fourth quarter 2020 stockholder letter will be announced over newswire with a link to the stockholder letter available on the investor relations section of calix.com.

Calix will host a conference call to discuss these results the following morning on Thursday, January 28^th at 5:30 a.m. Pacific Time (8:30 a.m. Eastern Time).

Interested parties can listen to a live webcast of the conference call by visiting the Calix Investor Relations website at http://investor-relations.calix.com/. The conference call is also available via teleconference by dialing [phone] or international [phone] with conference ID# 13713752 or participants can also click this link for instant telephone access to the event. The link will become active approximately 15 minutes prior to the start of the conference call. The conference call and webcast will include forward-looking information.

A replay of the conference call and webcast will also be available at http://investor-relations.calix.com/ following the completion of the call. The conference call and webcast will be archived at http://investor-relations.calix.com/.

About Calix

Calix, Inc. (NYSE:CALX) - Innovative communications service providers rely on Calix platforms to help them master and monetize the complex infrastructure between their subscribers and the cloud. Calix is the leading global provider of the cloud and software platforms, systems, and services required to deliver the unified access network and smart premises of tomorrow. Our platforms and services help our customers build next generation networks by embracing a DevOps operating model, optimize the subscriber experience by leveraging big data analytics and turn the complexity of the smart, connected home and business into new revenue streams.

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