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COGENT COMMUNICATIONS HOLDINGS, INC.

S-1 4 filings

All S-1 Filings

Complete history of S-1 filings with the SEC

Date Filed View on EDGAR
14 Feb
Feb 14, 2005
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18 May
May 18, 2004
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23 Oct
Oct 23, 2003
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30 Jan
Jan 30, 2002
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