6-K

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of: May 18, 2004

TRICOM, S.A.

(Translation of registrant’s name into English)

Avenida Lope de Vega No. 95, Santo Domingo, Dominican Republic
(Address of principal executives offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F   ý  Form 40-F    o

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes    o     No     ý

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-     

The press release on May 18, 2004, a copy of each is attached as Exhibit 99.1, is incorporated by reference into this Form 6-K.

Exhibits.

The following exhibits are filed with this report:

                99.1 -  Press Release, dated May 18, 2004, of TRICOM, S.A.

 [Signature on following page.]

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

TRICOM, S.A

Dated: May 19, 2004	By:	/s/ CARL H. CARLSON
		Carl H. Carlson
		Chief Executive Officer

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EX-99.1

EXHIBIT 99.1

Tricom to Commence Trading on the OTC Bulletin Board

SANTO DOMINGO, Dominican Republic, May 18 /PRNewswire-FirstCall/ — Tricom, S.A. announced today that its American Depositary Shares (ADSs) would begin trading on the OTC (over-the-counter) Bulletin Board (“OTCBB”) on Wednesday, May 19, 2004, under the symbol “TRICY”. The Company will continue its timely financial reporting and compliance with all the Securities and Exchange Commission reporting requirements.

The OTCBB is a regulated quotation service that displays real-time quotes, last-sale prices, and volume information in over-the-counter equity securities. Investors should be aware that trading in the Company’s ADSs through market makers and quotation on the OTCBB may involve risk, such as trades not being executed as quickly as when the issue was listed on the New York Stock Exchange. More information about OTCBB can be found at www.otcbb.com.

About TRICOM

Tricom, S.A. is a full service communications services provider in the Dominican Republic. We offer local, long distance, mobile, cable television and broadband data transmission and Internet services. Through Tricom USA, we are one of the few Latin American based long distance carriers that is licensed by the U.S. Federal Communications Commission to own and operate switching facilities in the United States. Through our subsidiary, TCN Dominicana, S.A., we are the largest cable television operator in the Dominican Republic based on our number of subscribers and homes passed. For more information about Tricom, please visit www.tricom.net.