Exhibit 32.1 Section 1350 Certification

In connection with the filing of the Annual Report on Form 10-KSB for the Year Ended December 31, 2006 (the “Report”) by Cellular Technical Services Company, Inc., each of the undersigned hereby certifies that:

1.	The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Cellular Technical Services Company, Inc.

By:	/s/ Stephen Katz
Stephen Katz
Chief Executive Officer
April 2, 2007
By:	/s/ Kenneth Block
Kenneth Block
Secretary and Chief Financial Officer
April 2, 2007

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to Cellular Technical Services Company, Inc and will be retained by the Registrant and furnished to the Securities and Exchange Commission or its staff upon request.