Carrier1 appoints Gavin Richardson as UK and Ireland Managing Director.

Business Editors

ZURICH, Switzerland--(BUSINESS WIRE)--April 9, 2001

Carrier1 International S.A. (NeuerMarkt: CJN; NASDAQ: CONE), a leading European provider of end-to-end Internet, voice, bandwidth, data center and access solutions to large users of communication services, today announced the appointment of Gavin Richardson as its Managing Director for the United Kingdom and Ireland. Gavin is replacing Phil Poulter, who has accepted a position of CEO at Data True, a billing service provider in the UK.

Gavin Richardson joins Carrier1 from Concert where he was Sales Vice President, Commercial Operations. Prior to Concert, Gavin worked within BT's Multi-National Sales & Service division leading global account teams servicing major corporations.

"Carrier1 is rapidly strengthening its sales organization and Gavin brings great leadership and invaluable experience to our UK and Ireland sales organization", said Stig Johansson, President and CEO of Carrier1.

Carrier1's network coverage in the United Kingdom includes 1,150 km of fibre between Liverpool and London, connecting, Manchester, Sheffield, Nottingham, Birmingham, Bristol and Cambridge. In February 2001, Carrier1 purchased broadband capacity which overlays this national network and extends further north to Glasgow. This transaction provides Carrier1 with 48 points of presence in the U.K., allowing it to manage its growing Internet business on net and closer to traffic origination points.

Forward Looking Statement: The information contained in this press release contains "forward-looking statements" within the meaning of the U.S. federal securities laws. These statements include those relating to the length of our contracted network; and the size and timing for the implementation of the Company's infrastructure build-out, including the purchased broadband capacity, and the impact on its ability to grow its internet business. These statements are based on the current expectations of the management of Carrier 1 International S.A., and performance is subject to risks, uncertainties and other factors that could cause actual results to differ materially from these statements. Such risks include, but are not limited to, adverse regulatory, technological or competitive developments, decline in demand for the Company's services or products, inability to timely develop and introduce new technologies, products and services, pressure on pricing resulting from competition, unforeseen construction delays, and failure to receive on a timely basis necessary permits or other governmental approvals, and failure to obtain any necessary financing if management's business plan assumptions are not met, and failure of third parties with whom the Company has contracted including for the supply or maintenance of infrastructure components. For a more detailed discussion of these risks, uncertainties and other factors affecting the Company, please refer to the Company's prospectus and reports on Forms 10-K,10-Q and 8-K filed with the U.S. Securities and Exchange Commission, including its 10-K for the year ended December 31, 1999 and its 10-Qs for the 3-month period ended March 31, 2000, the 3-month period ended June 30, 2000 and the 3-month period ended September 30, 2000 and the 10K for the year ended December 31,2000. Corresponding filings are available at the Frankfurt Stock Exchange.

About Carrier1

Carrier1 International S.A. is a leading European provider of end-to-end Internet, voice, bandwidth, data center and access solutions to large users of communication services. Carrier1 provides its clients with carrier-grade transport and network solutions as well as end-user ready value added services. Carrier1 customers brand and market these solutions and services to their respective end-users. The Carrier1 pan-European, inter-city fiber network connects 13 countries and currently spans over approximately 14,000 contracted route kilometers, connecting points-of-presence in over 25 European cities. Carrier1 is operational in all 13 countries and has secured all the necessary interconnects and operational licenses that allow it to provide network solutions and end-user-ready, value-added services. Carrier1 has completed 2 metro ring fibre networks and is currently constructing 11 metro ring fibre networks and expanding two existing metro fibre network. Carrier1 plans to build/acquire additional city-ring fibre networks. Carrier1 has space available for service in data center facilities and these co-location facilities are marketed under the name ClearSpace.