RCN Metro Expands Network into Concord, New Hampshire

HERNDON, VA, March 29, 2010 – RCN Metro Optical Networks, a division of RCN Corporation (NASDAQ: RCNI) and a premier provider of fiber optic-based network solutions, announced today that it is expanding its network into Concord, NH. With the addition of the Concord Central Office, RCN Metro now serves 144 Central Offices across its network footprint.

RCN Metro has a unique depth of experience in the backhaul of local traffic, understands how to work directly with ILECs and is capable of offering solutions tailored to the individual needs of carriers. This expansion introduces meaningful competition in the region delivering dependable, scalable and competitively priced telecommunication services to local business customers.

“Concord is a classic example of the type of market where RCN Metro excels at providing cost- effective, high-quality transport services. This expansion was driven by the requests of our customers to find high capacity services, bundled with the high touch service and support they have come to expect from RCN Metro,” said Felipe Alvarez, President, RCN Metro. “Our ability to understand our clients’ needs and our commitment to customer service is what sets us apart in the marketplace.”

RCN Metro’s Central Office (CO) Access Service provides wholesale, high bandwidth SONET private line connectivity to key Incumbent Local Exchange Carrier (ILEC) COs for carriers and service providers serving the enterprise market.

About RCN Metro Optical Networks

RCN Metro, http://www.rcnmetro.com, is a premier provider of high-capacity transport services for carriers as well as large and medium-sized businesses. RCN Metro offers a comprehensive suite of services including: Ethernet, SONET, Wavelength, Video Transport, Internet and more. With a network leveraging unique rights-of-way, spanning from Maine to Virginia, out to Chicago and up to Toronto, RCN Metro deploys custom solutions to service providers as well as companies in the finance, hospitality, media, government, health care and education industries. RCN Metro is a wholly owned division of RCN Corporation.

About RCN Corporation

RCN Corporation, (NASDAQ: RCNI) www.rcn.com, is a competitive broadband services provider delivering all-digital and high definition video, high-speed internet and premium voice services to residential and small-medium business customers under the brand names of RCN and RCN Business Services, respectively. In addition, through its RCN Metro Optical Networks business unit, RCN delivers fiber-based high-capacity data transport services to large commercial customers, primarily large enterprises and carriers, targeting the metropolitan central business districts in the company’s geographic markets. RCN’s primary service areas include Washington, D.C., Philadelphia, Lehigh Valley (PA), New York City, Boston and Chicago. (RCNI-G)