CapRock Agreement Extends Adelphia Business Solution's Southwest Reach; Eastern-U.S. Provider to Gain Access to Central, South Texas.

DALLAS--(BUSINESS WIRE)--Oct. 11, 1999--

CapRock Communications Corp. (Nasdaq:CPRK) and Adelphia Business Solutions, formerly Hyperion Communications (Nasdaq:HYPT), today announced a 30-year indefeasible right of use (IRU) agreement granting Adelphia access to several Texas markets via 1,208 additional route miles of CapRock's SONET-based fiber optic network. The agreement, the second between the two companies, is valued at $7.2 million.

CapRock, a Southwestern U.S. facilities-based integrated communications provider (ICP), granted the long-term license to extend Adelphia's network southward from Dallas to Waco, along to Bryan and east to Austin. From there, the Lucent TrueWave(R) fiber connection continues southward to San Antonio, Laredo, and McAllen, before routing through Corpus Christi, Victoria to Houston.

"Carriers depend on us to be the backbone of their network, and this second agreement with Adelphia reinforces CapRock's network credibility," said Tim Terrell, executive vice president of carrier services. "This is a tried-and-tested relationship that both companies wanted to expand, and we believe the relationship will continue to grow as CapRock builds out its regional network."

"This agreement not only allows us to offer services in several new Texas markets, but is another important step in our aggressive expansion plan," said James Rigas, CEO of Adelphia Business Solutions. "We will continue to utilize CapRock's network where it provides us with logical cost-effective entry into new areas."

CapRock previously granted Adelphia similar access for 1,650 miles of CapRock's fully redundant network in four states. Adelphia is deploying a super-regional network serving the eastern half of the United States.

In the first IRU agreement, Adelphia gained access to CapRock's fiber network ring from Dallas/Fort Worth through Wichita Falls, Texas, Oklahoma City and Tulsa, Okla., Little Rock and Pine Bluff, Ark. The network continues through Monroe and Shreveport, La., and loops back through Longview, Tyler and Athens, Texas, to Dallas/Fort Worth. That agreement will also extend Adelphia network access from Little Rock to Memphis, Tenn.

About CapRock

CapRock is a southwestern U.S. facilities-based integrated communications provider (ICP) offering local, long-distance, Internet, high-speed data transmission, remote location access, systems integration, virtual private networks and private line services to business customers. The company also provides switched and dedicated access, regional and international long-distance, private lines and dark fiber to carrier customers. The company is building out a 6,100-mile fully redundant network in six Southwestern states. For more information, visit CapRock's Web site at http://www.caprock.com.

About Adelphia Business Solutions

Adelphia Business Solutions (Nasdaq:HYPT), a majority owned subsidiary of Adelphia Communications Corporation (Nasdaq:ADLAC), provides integrated communication services to business customers over its state-of-the-art fiber optic network. By the year 2001, Adelphia Business Solutions will serve approximately 200 cities throughout the United States over its fully redundant, 33,000-mile local and long-haul fiber optic network. This network serves as the backbone for the company's full line of communication service offerings, including local and long distance voice services, messaging, high-speed data and Internet services. For more information about Adelphia Business Solutions, contact Tracy Southers, public relations specialist, at 412/220-5608 or visit the company's Web site at http://www.adelphia-abs.com.

Statements contained in this news release regarding expected financial results and other planned events are forward-looking statements, subject to uncertainties and risks. Among many factors that could cause actual results to differ materially from those expected include, but are not limited to, the following: the substantial indebtedness of the Company including the interest charges associated therewith and the financial covenants imposed upon the Company by such indebtedness; the Company's ability to successfully, timely and cost-effectively fund and complete its planned growth, including its fiber network; and, competition in the various segments of the communications industry in which the Company seeks to participate. For an expanded discussion on these and additional risks associated with CapRock's business, please see the documents filed by CapRock Communication Corp. with the U.S. Securities and Exchange Commission.