SECURITIES AND EXCHANGE COMMISSION SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ____________________ FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 Excel Switching Corporation --------------------------- (Exact name of registrant as specified in its charter) Massachusetts 04-2992806 ------------------------ ---------- (State of Incorporation (IRS Employer or Organization) Identification No.) 255 Independence Drive Hyannis Massachusetts 02601 ----------------------------------------------- ----- (Address of principal executive offices) (Zip Code) If this form relates to the If this form relates to the registration of a class of registration of a class of securities pursuant to securities pursuant to Section Section 12(b) of the 12(g) of the Exchange Act and Exchange Act and is is effective pursuant to effective pursuant to General Instructions A.(d), General Instruction A.(c), please check the following please check the following box. [X] box. [_] Securities Act registration statement file number to which, this form relates: 333-35791 --------- (if applicable) Securities to be registered pursuant to Section 12(b) of the Act: Title of Each Class Name of Each Exchange on Which to be so Registered Each Class is to be Registered --------------------- -------------------------------- None N/A Securities to be registered pursuant to Section 12(g) of the Act: Common Stock, par value $.01 per share -------------------------------------- (Title of Class) Item 1. Description of Registrant's Securities to be Registered - ---------------------------------------------------------------- Information concerning the Registrant's Common Stock, par value $.01 per share, is contained in the Registrant's Form S-1 Registration Statement, filed with the Securities and Exchange Commission on September 17, 1997 (Registration No. 333-35791) pursuant to the Securities Act of 1933, as amended (the "S-1 Registration Statement") and such information is incorporated herein by reference. TRANSFER AGENT AND REGISTRAR The transfer agent and registrar for the Common Stock is BankBoston, NA, Boston, Massachusetts. Item 2. Exhibits -------- Exhibit No. Exhibit - ----------- ------- 1. Restated Articles of Organization of the Registrant (Incorporated by reference to Exhibit 3.1 to the Registrants Registration Statement on Form S-1). 2. Restated By-Laws of the Registrant, as amended (Incorporated by reference to Exhibit 3.2 of the Registrants Registration Statement on Form S-1). 3. Specimen Certificate representing the Common Stock (Incorporated by reference to Exhibit 4.1 to the Registrant's Registration Statement on Form S-1). SIGNATURE --------- Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. Excel Switching Corporation By: /s/ Robert P. Madonna --------------------------------- Robert P. Madonna President Date: October 23, 1997