SAO PAULO, Brazil, Feb. 24 /PRNewswire-FirstCall/ -- Tele Centro Oeste Celular Participacoes S.A. - TCO, (Bovespa: TCOC3 (ON = Common Shares)/TCOC4 (PN = Preferred Shares); NYSE: TRO), announces its consolidated results for the fourth quarter and full year of 2005 (4Q05 and 2005). R$ milhoes 4Q05 4Q04 2005 2004 Net Operating Revenue 569.2 608.9 2,271.5 2,210.5 Total Operating Costs (453.1) (403.8) (1,622.2) (1,319.2) EBITDA 116.1 205.1 649.3 891.3 EBITDA Margin (%) 20.4% 33.7% 28.6% 40.3% Net Result 63.2 129.6 339.1 507.1 Number of customers (thousand) 6,815 5,820 6,815 5,820 Market share (source: Anatel) 45.5% 51.3% 45.5% 51.3% Net Additions (thousand) 255 513 995 1,708 Christmas campaign focused on highest value market segments. TCO's customer base rose 17.1% in relation to 4Q04, recording 6,815 thousand customers, with post-paid customers growth of 2.6%. Market leadership with 45.5% market share, in a market with 4 operators in all its regions. SAC of R$ 101.0 in the quarter, representing a reduction of 17.6% in relation to the previous quarter. In the year-to-year comparison, it recorded a reduction of 18.9%, which reflects the Company's selling efforts. Post-paid ARPU recorded 5.3% increase in the comparison between 4Q05 and 4Q04. Post-paid MOU increased by 5.6% in 4Q05 over 4Q04, with addition of 12 minutes, reflected in the increase of the postpaid ARPU. Net service revenues increased by 5.0% in the comparison of the accumulated totals for 2005 and 2004. Increase in data revenues by 39.5% in 2005, accounting for 5.6% of the net services revenue, showing the successful launching of new services. Launching of new corporate solutions focused on high speed in data transmission, such as Smart Mail 3G and VIVO ZAP 3G. Accumulated EBITDA in 2005 of R$ 649.3 million, representing a margin of 28.6%. Excluding the PDD effects, the EBITDA would record a 33.7% margin. Increase in the net financial result in 2005 over the accumulated total for 2004 by 88.3%, recording R$ 117.1 million. Operating Cash Flow of R$ 292.3 million in the accumulated total for 2005, showing the efficiency of its operation. To download the complete version of the Company's earnings release, please visit our website: http://www.vivo.com.br/ir Tele Centro Oeste is controlled by Telesp Celular Participacoes S.A. which, along with Tele Leste Celular Participacoes S.A., Tele Sudeste Celular Participacoes S.A. and Celular CRT Participacoes S.A,, make up the assets of the Joint Venture undertaken by Portugal Telecom and Telefonica Moviles and, operating under the VIVO brand, Top of Mind within its coverage area. VIVO Group is a pioneer in 3rd generation services in Brazil, having launched the CDMA EV-DO technology in the main cities of the country and having won more than 40 prizes in 2005. In December 2005, VIVO Group exceeded 29 million customers, thus keeping its market leadership. CONTACT: Charles Allen, Head of Investor Relations, Vivo Participacoes S.A., +55-11-5105-1172, http://www.vivo.com.br/ir First Call Analyst: FCMN Contact: pedro.souza@vivo.com.br DATASOURCE: Tele Centro Oeste Celular Participacoes S.A. CONTACT: Charles Allen, Head of Investor Relations, Vivo Participacoes S.A., +55-11-5105-1172, Web site: http://www.vivo.com.br/ir

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