WASHINGTON, D.C. February 20, 2015 – Cogent Communications Holdings, Inc. (NASDAQ: CCOI), one of the largest Internet service providers in the world, today announced that Dave Schaeffer, Cogent's chief executive officer, will present at the following conferences:

The Raymond James 36th Annual Institutional Investors Conference is being held at the JW Marriott Orlando Grande Lakes in Orlando, FL. Dave Schaeffer will be presenting on Tuesday, March 3rd at 3:25 p.m. EST.

The Morgan Stanley 2015 Technology, Media & Telecom Conference is being held at The Palace Hotel in San Francisco, CA. Dave Schaeffer will be presenting on Wednesday, March 4th at 3:05 p.m. PST.

The Deutsche Bank 2015 Media, Internet & Telecom Conference is being held at The Breakers Hotel in Palm Beach, FL. Dave Schaeffer will be presenting on Monday, March 9th at 10:45 a.m. EDT.

The Goldman Sachs Sixth Annual TMT Leveraged Finance Conference is being held at the Goldman Sachs Conference Center in New York, NY. Dave Schaeffer will be presenting on Wednesday, March 11th at 11:40 a.m. EDT.

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 Raymond James webcast will be available on Cogent's website for 7 days following the presentation and replays of the Morgan Stanley, Deutsche Bank, and Goldman Sachs webcasts will be available for 90 days following the presentation.

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 190 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 Este endereço de email está protegido contra piratas. Necessita ativar o JavaScript para o visualizar..

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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 Holdings, 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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