WASHINGTON, D.C. March 1, 2010
Cogent Communications Group, 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 31st Annual Institutional Investors Conference is being held at the JW Marriott Grande Lakes in Orlando, Florida. Dave Schaeffer will be presenting on Monday, March 8th at 3:25 PM ET.

The Credit Suisse Global Media and Communications Convergence Conference is being held at the Breakers Hotel in Palm Beach, FL. Dave Schaeffer will participate in panels at 10:30 AM and 3:45 PM ET on Tuesday, March 9th. The 10:45 AM panel is titled “Making Money on Wireless Growth” and the 3:45 PM panel is titled “The State of the SME Market.”

Investors and other interested parties may access a live audio webcast of the Raymond James presentation by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcasts. A replay of the webcast will be available on Cogent’s IR website for 7 days following the presentations. The Credit Suisse panels will not be webcast.


About Cogent Communications
Cogent Communications (NASDAQ: CCOI) is a multinational, Tier 1 facilities-based ISP, consistently ranked as one of the top five networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

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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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WASHINGTON, D.C. February 4, 2010
Cogent Communications Group, Inc. (NASDAQ: CCOI) will host a conference call with financial analysts at 8:30 a.m. (ET) on February 25, 2010 to discuss Cogent’s operating results for the fourth quarter and full year for 2009. Cogent will issue a press release announcing the operating results at 7 a.m. (ET) on February 25, 2010.

To participate, investors and other interested parties may access the earnings call as follows:

Dial-in Numbers: 1-877-419-6591 for U.S. callers
1-719-325-4824 for international callers

Internet: An audio webcast is accessible under “Events” at the “Investor Relations” section of Cogent’s website at www.cogentco.com and will remain available through April 30, 2010.

Telephone Replay: Thursday, February 25, 2010 at 11:30 a.m. ET and continuing through 11:59 p.m. ET on Wednesday, March 3.
To listen to the replay, please dial 1-719-457-0820, Access code 4489076

About Cogent Communications
Cogent Communications (NASDAQ: CCOI) is a multinational, Tier 1 facilities-based ISP, consistently ranked as one of the top five networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

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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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WASHINGTON, D.C. January 28, 2010
Cogent Communications Group, 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 Thomas Weisel Partners 2010 Technology & Telecom Conference at 8:35 a.m. PT, February 8th. The conference is being held at The Fairmont Hotel in San Francisco.

Investors and other interested parties may access a live audio webcast of the presentation by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcast. A replay of the webcast will be available on Cogent’s IR website for 30 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 networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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WASHINGTON, D.C. December 28, 2009
Cogent Communications Group, 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:

Citi’s 20th Annual Global Entertainment, Media & Telecommunications Conference is being held at the Palace Hotel in San Francisco. Dave Schaeffer will be presenting on Thursday, January 7th at 11:10 AM PT.

Kaufman Bros. Technology Trends 2010 Conference is being held at the InterContinental The Barclay in New York City. Dave Schaeffer will present at 10:30 AM ET on Tuesday, January 12th.

Investors and other interested parties may access a live audio webcast of the presentations by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcasts. A replay of the webcasts will be available on Cogent’s IR 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 networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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WASHINGTON, D.C. November 23, 2009
Cogent Communications Group, 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 J.P. Morgan’s SMid Cap Conference at 3:45 p.m. ET, December 2nd. The conference is being held at the J.P. Morgan Conference Center in New York City.

Investors and other interested parties may access a live audio webcast of the presentation by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcast. A replay of the webcast will be available on Cogent’s IR website 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 networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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WASHINGTON, D.C. November 11, 2009
Cogent Communications Group, 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:

Thomas Weisel Partners Emerging Communications Conference is being held at the Barclay International Hotel in New York City. Dave Schaeffer will be presenting on Wednesday, November 18th at 9:00 AM ET.

Citi‘s 6th Annual Small/Mid Cap Conference is being held at the Citi Conference Center in New York City. Dave Schaeffer will present at 2:15 PM ET on Thursday, November 19th.

Investors and other interested parties may access a live audio webcast of the presentations by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcasts. A replay of the webcasts will be available on Cogent’s IR website for 30 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 networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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WASHINGTON, D.C. October 22, 2009
Cogent Communications Group, Inc. (NASDAQ: CCOI) will host a conference call with financial analysts at 8:30 a.m. (ET) on November 9, 2009 to discuss Cogent’s operating results for the third quarter of 2009. Cogent will issue a press release announcing the operating results at 7 a.m. (ET) on November 9, 2009.

To participate, investors and other interested parties may access the earnings call as follows:

Dial-in Numbers: 1-800-616-9004 for U.S. callers
1-719-785-1764 for international callers

Internet: An audio webcast is accessible under “Events” at the “Investor Relations” section of Cogent’s website at www.cogentco.com and will remain available through January 31, 2010.

Telephone Replay: Monday, November 9, 2009 at 11:30 a.m. ET and continuing through 11:59 p.m. ET on Monday, November 16, 2009.
To listen to the replay, please dial 1-719-457-0820, Access code 5146728

About Cogent Communications
Cogent Communications (NASDAQ: CCOI) is a multinational, Tier 1 facilities-based ISP, consistently ranked as one of the top five networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 140 markets located in North America and Europe.

Since Cogent’s inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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WASHINGTON, D.C. September 8, 2009
Cogent Communications Group, 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 Jefferies 7th Annual Communications Conference at 3:45 p.m. ET, September 17th. The conference is being held in New York City.

Investors and other interested parties may access a live audio webcast of the presentation by going to the Investor Relations section of Cogent’s website (http://www.cogentco.com/us/ir_events.php) to access the link to the live audio webcast. A replay of the webcast will be available on Cogent’s IR website 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 networks in the world. Cogent specializes in providing businesses with high speed Internet access and point-to-point transport services. Cogent’s facilities-based, all-optical IP network backbone provides IP services in over 135 markets located in North America and Europe.

Since its inception, Cogent has unleashed the benefits of IP technology, building one of the largest and highest capacity IP networks in existence. 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 info@cogentco.com.

# # #

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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