INFORMATION REQUIRED PURSUANT
TO GENERAL INSTRUCTION E TO FORM S-8

This Registration Statement is being filed by 8x8. Inc. (the "Registrant") relating to (i) 500,000 shares of its common stock, $0.001 par value per share (the "Common Stock") issuable to eligible individuals under the Registrant's Second Amended and Restated 1996 Employee Stock Purchase Plan, such shares which are in addition to the (a) 500,000 shares of Common Stock registered on the Registrant's Form S-8 filed on July 9, 1997 (File No. 333-30943), (b) 70,560 shares of Common Stock registered on the Registrant's Form S-8 filed on April 20, 1998 (File No. 333-50519), (c) 500,000 shares of Common Stock registered on the Registrant's Form S-8 filed on July 30, 2001 (File No. 333-66296), (d) 416,589 shares of Common Stock registered on the Registrant's Form S-8 filed on June 10, 2002 (File No. 333-90172), (e) 189,575 shares of Common Stock registered on the Registrant's Form S-8 filed on August 30, 2004 (File No. 333-118642), (f) 43,220 shares of Common Stock registered on the Registrant's Form S-8 filed on July 1, 2005 (File No. 333-126337), (g) 118,535 shares of Common Stock registered on the Registrant's Form S-8 filed on September 26, 2006 (File No. 333-137599), (h) 707,387 shares of Common Stock registered on the Registrant's Form S-8 filed on June 19, 2013 (File No. 333-189452), (i) 282,062 shares of Common Stock registered on the Registrant's Form S-8 filed on May 27, 2014 (File No. 333-196275), (j) 306,248 shares of Common Stock registered on the Registrant's Form S-8 filed on May 29, 2015 (File No. 333-204583), (k) 365,555 shares of Common Stock registered on the Registrant's Form S-8 filed on June 22, 2016 (File No. 333-212163), and (l) 295,931 shares of Common Stock registered on the Registrant's Form S-8 filed on June 2, 2017 (File No. 333-218472), and (ii) 1,500,000 shares of Common Stock issuable to eligible individuals under the Registrant's 2017 New Employee Inducement Incentive Plan, such shares which are in addition to the 1,000,000 shares of Common Stock registered on the Registrant's Form S-8 filed on November 2, 2017 (File No. 333-221290) (collectively the "Prior Registration Statements").

This Registration Statement relates to securities of the same class as that to which the Prior Registration Statements relate and is submitted in accordance with Instruction E to Form S-8 regarding the registration of additional securities. Accordingly, the contents of the Prior Registration Statements are incorporated herein by reference and made part of this Registration Statement, except as amended hereby.

The documents containing the information specified in Part I of Form S-8 will be sent or given to the participants in the equity benefit plans covered by this Registration Statement as specified by Rule 428(b)(1) promulgated under the Securities Act. In accordance with the instructions to Part I of Form S-8, such documents will not be filed with the Securities and Exchange Commission ("SEC") either as part of this registration statement or as prospectuses or prospectus supplements pursuant to Rule 424 promulgated under the Securities Act. These documents and the documents incorporated by reference in the registration statement pursuant to Item 3 of Part II of this form, taken together, constitute a prospectus that meets the requirement of Section 10(a) of the Securities Act and are available without charge, upon oral or written request, to: 8x8, Inc., 2125 O'Nel Drive, San Jose, California, 95131, Attention: Secretary.

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The following documents filed by the registrant with the SEC are hereby incorporated by reference in this registration statement:

In addition, all documents filed by the registrant with the SEC pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act subsequent to the date of this registration statement and prior to the filing of a post-effective amendment, which indicates that all securities offered have been sold or which deregisters all of such securities then remaining unsold, are deemed to be incorporated by reference in this registration statement and to be a part hereof from the respective dates of filing of such documents. Any statement contained in this registration statement or in a document incorporated by reference shall be deemed modified or superseded to the extent that a statement contained in any subsequently filed document which also is or is deemed to be incorporated by reference herein or therein modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed to constitute a part hereof, except as so modified or superseded.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of San Jose, State of California, on the 1 day of June 2018.

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POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below hereby constitutes and appoints Vikram Verma and Mary Ellen Genovese, and each one of them, acting individually and without the other, as his or her true and lawful attorney-in-fact and agent, each with full power of substitution, for him and in his or her name, place and stead in any and all capacities, to sign any and all amendments to this registration statement (including post-effective amendments), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, full power and authority to do and perform each and every act and thing requisite and necessary to be done, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that each of said attorneys-in-fact or his substitute or substitutes may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.