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Cogent Communications CEO to Present at Three Upcoming Conferences

WASHINGTON, D.C. November 21, 2013 – Cogent Communications Group, Inc. (NASDAQ: CCOI), one of the largest Internet service providers in the world, today announced that the company will present at the following conferences:

The Bank of America Merrill Lynch 2013 Leveraged Finance Conference is being held at the Boca Raton Resort & Club in Boca Raton, FL. Dave Schaeffer, Cogent's chief executive officer, will be presenting on Tuesday, December 3rd at 2:50 p.m. EST.

The J.P. Morgan SMid Cap Conference is being held at the Westin River North Hotel in Chicago, IL. Dave Schaeffer will be presenting on Tuesday, December 10th at 10:15 a.m. CST.

The UBS 41st Annual Global Media and Communications Conference is being held at the Westin New York at Times Square in New York, NY. Lori Brown, Cogent's VP of Strategy, will be presenting on Wednesday, December 11th at 2:30 p.m. EST.

Investors and other interested parties may access a live audio webcast of the conference presentations by going to the "Events" section of Cogent's website at www.cogentco.com/events. A replay of the webcasts will be available on Cogent's website for 90 days following the presentations.

About Cogent Communications

Cogent Communications (NASDAQ: CCOI) is a multinational, Tier 1 facilities-based ISP, consistently ranked as one of the top five Internet backbone networks in the world. Cogent specializes in providing businesses with high speed Internet access, Ethernet transport and colocation services. Cogent's facilities-based, all-optical IP network provides services in over 180 markets globally.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in the world. This network enables Cogent to offer large bandwidth connections at highly competitive prices. Cogent also offers superior customer support by virtue of its end-to-end control of service delivery and network monitoring.

Cogent Communications is headquartered at 1015 31st Street, NW, Washington, D.C. 20007. For more information, visit www.cogentco.com. Cogent Communications can be reached in the United States at (202) 295-4200 or via email at This email address is being protected from spambots. You need JavaScript enabled to view it..

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Information in this release may involve expectations, beliefs, plans, intentions or strategies regarding the future. These forward-looking statements involve risks and uncertainties. All forward-looking statements included in this release are based upon information available to Cogent Communications Group, Inc. as of the date of the release, and we assume no obligation to update any such forward-looking statement. The statements in this release are not guarantees of future performance and actual results could differ materially from our current expectations. Numerous factors could cause or contribute to such differences. Some of the factors and risks associated with our business are discussed in Cogent's registration statements filed with the Securities and Exchange Commission and in its other reports filed from time to time with the SEC.

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Cogent is one of the world's largest Internet Service Providers, delivering high quality Internet, Ethernet and Colocation services to over 69,400 Enterprise and NetCentric customers. Cogent serves over 199 markets in 41 countries across its facilities-based, all-optical IP network.

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