AT&T Delivers Package of Ethernet and Network Applications to Knight Capital Group

Jersey City, New Jersey, March 6, 2007

AT&T Inc. (NYSE: T) announced today a contract to provide high-capacity data services, specialized equipment and Internet Protocol (IP) telephony support to Knight Capital Group, Inc. (Nasdaq: NITE), a leading financial services firm that provides comprehensive products and services for buy- and sell-side clients. Under the new contract, AT&T will also provide a variety of Internet-based products designed to enhance operating efficiencies and to support Knight in delivering superior customer service to its global clients. Specific terms of the contract were not disclosed.

Knight turned to AT&T for scalable and reliable telecommunications network services that would support its operations, including Knight's management of its market data and trade volumes. AT&T Managed Internet Service (MIS) will provide Knight with high speed dedicated access, enhanced security features and world-class reliability. Domestic and international private lines and Dedicated Entrance Facilities (DEFs) on an Optical infrastructure will support Knight's client communications by ensuring speed and availability of mission-critical, real-time market information and trading data.

AT&T's SONET services implemented at Knight's primary locations will be critical to ensuring top performance to Knight clients who seek the company's suite of electronic access products, including direct market access, ECN trading and electronic fixed income and foreign exchange platforms. AT&T's voice and data services also provide Knight's sales, trading and client service experts with the communications tools that they require in order to best serve broker dealers and institutions.

In addition, AT&T's dedicated team of network strategists, engineers and project managers continually work with Knight to provide industry-leading and scalable LAN infrastructure and IP telephony solutions to support the applications needed.

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About Knight
Knight Capital Group, Inc. (Nasdaq: NITE) is a leading financial services firm that provides comprehensive trade execution solutions and asset management services. Our Asset Management business, Deephaven Capital Management, is a global multi-strategy alternative investment manager focused on delivering attractive risk-adjusted returns with low correlation to the broader markets for institutions and private clients. Our Global Markets business provides a broad range of customized trade execution products and services across multiple asset classes for broker-dealers, institutions and companies. We continually apply knowledge and innovation to the trading and asset management processes to build lasting client partnerships through consistent performance and superior client service. More information about Knight can be found at www.knight.com.

About AT&T
AT&T Inc. is a premier communications holding company in the United States and around the world, with operating subsidiaries providing services under the AT&T brand. AT&T is the recognized world leader in providing IP-based communications services to businesses and the U.S. leader in providing wireless, high speed Internet access, local and long distance voice, and directory publishing and advertising through its Yellow Pages and YELLOWPAGES.COM organizations. As part of its three-screen integration strategy, AT&T is expanding video entertainment offerings to include such next-generation television services as AT&T U-verseSM TV. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at www.att.com.

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