VeriSign Provides Clearing, Settlement and Exchange Services to Third Largest GSM Wireless Provider in the United States

MOUNTAIN VIEW, CA (Marketwire) - VeriSign, Inc. (NASDAQ: VRSN), the leading provider of digital infrastructure for the networked world, today announced it will provide Dobson Communications (NASDAQ: DCEL), the third largest Global System of Mobile Communications (GSM) wireless provider with approximately 1.7 million customers in the U.S., with VeriSign® Settlement and Exchange Services beginning in April 2007.

VeriSign® Settlement and Exchange Services platform allows Dobson to know their financial position with roaming partners for voice and data traffic and provides customized Web-based reporting systems.

"The convergence of old and new services and a growing number of records from multiple roaming partners continues to increase the complexity of rating, billing, clearing and settling for rural wireless service providers," said Lee Huggins, vice president, VeriSign. "The unique ability to provide Dobson Communications with our bundled roaming and revenue assurance solution will help provide accuracy, timeliness and above all faster response to their customer needs."

VeriSign's GSM solution internationally complements its existing cellular intercarrier billing exchange record (CIBER) clearing business that has supported time division multiple access (TDMA) and code division multiple access (CDMA) operators for more than a decade. VeriSign currently provides clearing services to 35 carriers, 16 of which are GSM operators.

About Dobson Communications Corporation

Dobson Communications is a leading provider of wireless phone services to rural markets in the United States. Headquartered in Oklahoma City, the Company owns wireless operations in 17 states, with markets covering a population of approximately 12.7 million. The Company serves approximately 1.7 million customers. For additional information on the Company and its operations, please visit its Web site at http://www.dobson.net.

About VeriSign

VeriSign (www.verisign.com) runs the world's most powerful digital infrastructure, which enables and protects more than 30 billion interactions every day across the world's voice, video and data networks. The company's digital infrastructure services help businesses meet consumer demands for information, entertainment and community any time, anywhere over any device.

Forward-Looking Statement

Statements in this announcement other than historical data and information constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements involve risks and uncertainties that could cause VeriSign's actual results to differ materially from those stated or implied by such forward-looking statements. The potential risks and uncertainties include, among others, the uncertainty of future revenue and profitability and potential fluctuations in quarterly operating results due to such factors as the inability of VeriSign to successfully develop and market new products and services and customer acceptance of any new products or services, including VeriSign's Settlement and Exchange Services; the possibility that VeriSign's announced new services may not result in additional customers, profits or revenues; and increased competition and pricing pressures. More information about potential factors that could affect the company's business and financial results is included in VeriSign's filings with the Securities and Exchange Commission, including in the company's Annual Report on Form 10-K for the year ended December 31, 2005 and quarterly reports on Form 10-Q. VeriSign undertakes no obligation to update any of the forward-looking statements after the date of this press release.