Latin American Customer Extends Evolving Systems' Dynamic SIM Allocation(TM) Solution

ENGLEWOOD, CO--(Marketwire - April 21, 2010) - Evolving Systems, Inc. (NASDAQ: EVOL), a leading provider of software solutions and services to the wireless, wireline and IP carrier market, today announced that its Latin American Dynamic SIM Allocation (DSA) solution customer has placed an order to expand the use of its current system incorporating significant functional enhancements and distributed hardware architecture.

This deployment will increase DSA's processing capacity supporting the operator's rapidly increasing growth rate as well as short-term high traffic spikes generated by special product campaigns around major holidays, such as Mother's Day, Christmas and New Years. The expanded solution will also allow them to scale the solution across multiple servers, increasing capacity and reducing hardware costs.

"This order will enable the better handling of the customer's increasing demand and underscores the continued benefits realized from our DSA solution," said Thad Dupper, Chairman and CEO of Evolving Systems.

About Evolving Systems®
Evolving Systems, Inc. (NASDAQ: EVOL) is a provider of software and services to more than 70 network operators in over 40 countries worldwide. Its portfolio includes market-leading products for Service Activation, Service Verification, Dynamic SIM Allocation, Number Portability, Number Inventory and Mediation solutions. Founded in 1985, the Company has headquarters in Englewood, Colorado, with offices in the United Kingdom, Germany, India and Malaysia. Further information is available on the web at www.evolving.com.

CAUTIONARY STATEMENT
This news release contains "forward-looking statements" within the meaning of the United States' Private Securities Litigation Reform Act of 1995, based on current expectations, estimates and projections that are subject to risk. Specifically, Evolving Systems' statements about the impact of the software solution described in this press release and the ability of Evolving Systems' solutions to handle future needs of the customer described in this press release, or other customers, are forward-looking statements. Readers should not place undue reliance on these forward-looking statements, and Evolving Systems may not undertake to update these forward-looking statements. Actual results could differ materially because of many factors, such as internal budgeting changes of customers, the impact of competition and the general state of the telecommunications industry. For a more extensive discussion of Evolving Systems' business, please refer to the Company's Form 10-K filed with the U.S. SEC on March 8, 2010, as well as subsequently filed Forms 10-Q, 8-K and press releases and the Company's website at www.evolving.com.

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