As filed with the Securities and Exchange Commission on September 14, 2001 Registration Number 333-39434 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM SB-2 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Ultradata Systems, Incorporated __________________________________________________________________________ (Name of Small Business Issuer in its Charter) Delaware 3679 43-1401158 --------------------------------------------------------------------------- (State or other Jurisdiction of (Primary Standard Industrial (I.R.S. Employer Incorporation or Organization Industrial Classification Identification Code Number) Number) MONTE ROSS, PRESIDENT Ultradata Systems, Incorporated 9375 Dielman Industrial Drive St. Louis, MO 63132 (314) 997-2250 (Address and telephone number of Registrant's principal executive offices, principal place of business, and agent for service of process.) _________________________________ Copy to ROBERT BRANTL, ESQ. 322 Fourth Street Brooklyn, NY 11215 Attorney for Issuer (718) 768-6045 On September 13, 2001 the offering of securities under this Registration Statement was completed. At that time, 2,633,814 shares of common stock that were included in the Registration Statement remained unsold. Ultradata Systems, Incorporated, therefore, hereby de-registers those 2,633,814 shares. SIGNATURES In accordance with the requirements of the Securities Act of 1933, Ultradata Systems, Incorporated certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form SB-2 and authorized this registration statement to be signed on its behalf by the undersigned in the City of St. Louis and the State of Missouri on the 14th day of September, 2001. ULTRADATA SYSTEMS, INCORPORATED By:\s\Monte Ross Monte Ross, Chairman In accordance with to the requirements of the Securities Act of 1933, this registration statement has been signed below by the following persons in the capacities stated on September 14, 2001. Name Title ----------------------------------------------- /s/Monte Ross Chief Executive Officer, Director -------------------- Monte Ross /s/Ernest Clarke Chief Financial and Accounting Officer, Director -------------------- Ernest Clarke /s/Mark L. Peterson Director -------------------- Mark L. Peterson Director -------------------- Donald Rattner Director -------------------- Howard Krollfeifer, Jr.