RCN Metro Extends Ethernet Services to Global Community

HERNDON, VA, May 27, 2010 – RCN Metro Optical Networks, a division of RCN Corporation (NASDAQ: RCNI) and a premier provider of fiber optic-based network solutions, announced today it is offering its award-winning Ethernet services to local, national, and international service providers via Ethernet Exchange Carriers in New York City and Chicago at bandwidths from 1 Mbps to 10 Gbps. Additional regions will be announced throughout the year.

RCN Metro has teamed with leading Ethernet Exchange Carriers including CENX, Equinix (EQIX), and Neutral Tandem (TNDM) to simplify the delivery of Ethernet services across networks.  In order to interconnect with carriers today, one-off interconnection agreements need to be negotiated with each carrier.  Since Ethernet service delivery standards are not ubiquitously adhered to, carriers are challenged to interconnect without compromising services quality or support.   RCN Metro’s participation in Ethernet exchanges represents the company’s commitment to expanding the distribution of its Ethernet services through these leading edge exchanges designed to facilitate these types of interconnections.

“RCN Metro has valuable assets in our local Ethernet service offerings; standardized network interconnections will make it easier for wholesale carriers to purchase and sell our Ethernet services without compromising our service differentiation,” said Felipe Alvarez, President of RCN Metro. “The Ethernet exchanges deliver an efficient and cost effective method of interconnecting on a one-to-many basis.”

RCN Metro’s Ethernet service combines the reliability and ubiquity of Ethernet with next-generation transport technology. The result is a service that delivers an efficient, fully restorable, easily managed network. RCN Metro’s Ethernet Service offers dedicated point-to-point, switched point-to-multipoint and multipoint-to-multipoint Layer 2 service over dedicated access bandwidth, which enables the extension of LAN infrastructure for WAN connectivity as well as point-to-point private line services.

For more information on RCN Metro’s Ethernet network-to-network interconnection, call 888-955-6877 or visit www.rcnmetro.com.

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)