Impsat Stock to Begin Trading in Latibex of Spain.

Business Editors

BUENOS AIRES, Argentina--(BUSINESS WIRE)--April 2, 2001

Following its Listing in Nasdaq and Buenos Aires Stock Exchange,

Impsat's Stock will now be Listed in Latibex Market of Madrid

Stock Exchange

Impsat Fiber Networks, Inc. ("Impsat" or the "Company") (NASDAQ: IMPT), a leading provider of broadband telecommunications and data center services in Latin America, today announced the approval by the Board of Latibex Market of Spain for the trading of the Company's common stock, which has been quoted on NASDAQ since February 2000. Trading will begin on April 10, 2001.

Latibex is the euro-denominated stock exchange for Latin American stocks of Madrid Stock Exchange. The total market capitalization of the stocks traded in Latibex exceeds EUR 80 Bn. By having its stock traded in Latibex, Impsat will give new European investors the opportunity to invest in the rapidly expanding Latin American telecommunications market. The euro-based trading will also allow the Company to be included in new trading indices and to attract an increasing number of euro-based funds to diversify its shareholder base and increase its liquidity. This move follows the Company's listings in NASDAQ in February 2000 and in the Argentine Stock Exchange in October 2000.

Guillermo Jofre, Impsat's chief financial officer, stated, "Impsat's history is one of constant growth. Throughout the Company's life, the international financial community has played a very significant role in helping us realize our growth plans. We expect that listing in Madrid will attract more European investors to our exceptional business opportunity".

Salvador Pastor, Chief Executive of HSBC Investment Bank in Spain, added: "European investors have shown an increasing interest in Latin American telecommunications. As a leader in the provision of integrated data solutions we believe Impsat is a notable addition to the trading alternatives of Latibex."

Impsat is the first Latin American integrated telecommunications service provider to participate in Latibex. On March 9, 2000, the Company announced its results for the year 2000, posting a 41% revenue growth from 1999, and a 52% growth in its customer base. Impsat's operations in Brazil, the most important market in the region, showed a revenue growth of over 338%, showing the Company's ability to penetrate this key market. As from April 10, investors will be able to trade Impsat's common stock in Latibex. Impsat will be included in the FTSE Latibex All Share index.

Impsat Fiber Networks, Inc. is a leading provider of integrated broadband data, Internet and voice telecommunications services in Latin America. Impsat has recently launched an extensive pan-Latin American high capacity broadband network in Brazil, Argentina, Chile and Colombia using advanced technologies, including IP/ATM switching, DWDM, and non-zero dispersion fiber optics. The Company has also fourteen hosting facilities in the most important cities including Sao Paulo, Buenos Aires, Santiago, Mexico City and Fort Lauderdale. Impsat currently provides services to more than 2,600 national and multinational companies, government entities and wholesale services to carriers, ISPs and other service providers throughout the region. The Company has local operations in Argentina, Colombia, Venezuela, Ecuador, Mexico, Brazil, the United States, Chile and Peru. Visit us at www.impsat.com

Statements made in this press release that state Impsat's intentions, beliefs, expectations, or predictions for the future are forward-looking statements. It is important to note that the company's actual results could differ materially from those projected in such forward-looking statements. Information concerning factors that could cause actual results to differ materially from those in the forward-looking statements is contained in the company's filings with the U.S. Securities and Exchange Commission (SEC). Copies of these filings may be obtained by contacting Impsat or the SEC.