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COGENT COMMUNICATIONS HOLDINGS, INC.

S-4/A 6 filings

All S-4/A Filings

Complete history of S-4/A filings with the SEC

Date Filed View on EDGAR
08 Jan
Jan 08, 2002
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08 Jan
Jan 08, 2002
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07 Jan
Jan 07, 2002
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03 Jan
Jan 03, 2002
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07 Dec
Dec 07, 2001
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21 Nov
Nov 21, 2001
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