CTC Communications Enters ISP Market.

WALTHAM, Mass.--(BUSINESS WIRE)--May 11, 1999--

CTC Communications Corp. (NASDAQ NNM:CPTL) announced today that it will enter the Internet Services Providers (ISP) Market in the New England States, New York, New Jersey and Maryland this summer.

CTC will provide Internet access services to its customers as part of its PowerPath(SM) broadband ATM access service. CTC's ICN Network will carry PowerPath(SM) originated Internet traffic to ICN gateways in Boston and New York, that have high speed IP backbone connectivity directly to the Internet.

CTC has signed an agreement with Level 3 for the high-speed backbone between CTC's ICN Network gateways and the Level 3 Internet Network Access point (NAP). Implementation of the ICN Network gateways and the Level 3 NAP access is underway and ISP access will be one of CTC's initial network service offerings late this summer.

Robert J. Fabbricatore, Chairman of the Board and CEO of CTC stated, "The ISP market is an integral part of our network strategy which leverages the inherent capabilities and attributes of CTC's Cisco Powered, ICN Network. The characteristics and design of the ICN Network facilitate CTC's ISP market entry at reasonable cost and direct connectivity to the Internet will provide our customers with improved Internet performance. CTC's ISP interconnection agreement with Level 3 is a further extension of our current agreement and further compliments the network strategies of each company."

Frederic Kunzi, Vice President and Chief Technology Officer of CTC stated, "Entering the ISP market is part of our strategy to evolve to a full IP centric service provider. Through its agreement with Level 3, CTC's Internet gateways in Boston and New York will provide dedicated, diversely routed DS-3, IP backbone connectivity to the Internet NAP. CTC's ISP Internet service design, utilizing PowerPathSM broadband customer access, the ICN Network and direct gateway connectivity to the NAP, enable the routing of Internet traffic on a bilateral and equitable basis. This means that a customer in Bangor Maine or in the eastern tip of Long Island will receive the same performance and quality of service as customers in Boston or Manhattan. CTC's ISP Internet access, domain registration and management services will be part of CTC's initial network service offerings late this summer."

CTC is a rapidly growing provider of integrated communications solutions to medium and large size business customers in the Northeast U.S. It provides an extensive array of voice and data services including local, long distance, frame relay, Internet access and other advanced data services. The Company markets its services through its 253 member sales and service representatives located in 25 branch offices throughout Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York and Maryland. Company headquarters are in Waltham, Massachusetts and CTC can be found on the worldwide web at www.ctcnet.com.

The statements in this press release that relate to future plans, events or performance are forward-looking statements that involve risk and uncertainties that could cause actual results to differ materially from those reflected in the forward-looking statements. Readers are, accordingly, cautioned not to place undue reliance on these forward-looking statements, which speak only as to the date hereof. Additional information about these risks and uncertainties is set forth in the Company's most recent report on Form 10-Q. CTC undertakes no obligation to release publicly the results of any revisions to these forward-looking statements that may be made to reflect results results, events or circumstances after the date hereof.