<SEC-DOCUMENT>0001104659-25-023338-index.html : 20250313
<SEC-HEADER>0001104659-25-023338.hdr.sgml : 20250313
<ACCEPTANCE-DATETIME>20250313122629
ACCESSION NUMBER:		0001104659-25-023338
CONFORMED SUBMISSION TYPE:	PRE 14A
PUBLIC DOCUMENT COUNT:		27
CONFORMED PERIOD OF REPORT:	20250507
FILED AS OF DATE:		20250313
DATE AS OF CHANGE:		20250313

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COGENT COMMUNICATIONS HOLDINGS, INC.
		CENTRAL INDEX KEY:			0001158324
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATION SERVICES, NEC [4899]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				522337274
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		PRE 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51829
		FILM NUMBER:		25734704

	BUSINESS ADDRESS:	
		STREET 1:		2450 N STREET, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
		BUSINESS PHONE:		2022954200

	MAIL ADDRESS:	
		STREET 1:		2450 N STREET, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COGENT COMMUNICATIONS GROUP INC
		DATE OF NAME CHANGE:	20010828
</SEC-HEADER>
<DOCUMENT>
<TYPE>PRE 14A
<SEQUENCE>1
<FILENAME>tm252347-2_pre14a.htm
<DESCRIPTION>FORM PRE 14A
<TEXT>
Document 1 - file: tm252347-2_pre14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>2
<FILENAME>ccoi-20241231.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
<TEXT>
Document 2 - file: ccoi-20241231.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>3
<FILENAME>ccoi-20241231_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE
<TEXT>
Document 3 - file: ccoi-20241231_def.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>4
<FILENAME>ccoi-20241231_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE
<TEXT>
Document 4 - file: ccoi-20241231_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>5
<FILENAME>ccoi-20241231_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
<TEXT>
Document 5 - file: ccoi-20241231_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>lg_cogent-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: lg_cogent-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>sg_marcmontagner-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: sg_marcmontagner-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>sg_riedzulager-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: sg_riedzulager-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>lc_5yearscumulativetotal-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: lc_5yearscumulativetotal-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>lc_cumulativetotal-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: lc_cumulativetotal-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>bc_paidvstsr-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: bc_paidvstsr-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>bc_paidvsnetincome-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: bc_paidvsnetincome-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>bc_paidvsebitda-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: bc_paidvsebitda-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>px_25cogentannual1pg01-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: px_25cogentannual1pg01-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>px_25cogentannual1pg02-bw.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: px_25cogentannual1pg02-bw.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>18
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 18 - file: R2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>R3.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: R3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 20 - file: R4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>21
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 21 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 22 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 23 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>25
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 25 - file: FilingSummary.html

Document 25 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>27
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 27 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>28
<FILENAME>0001104659-25-023338-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 28 - file: 0001104659-25-023338-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>29
<FILENAME>tm252347-2_pre14a_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 29 - file: tm252347-2_pre14a_htm.html

Document 29 - RAW XML: tm252347-2_pre14a_htm.xml

</DOCUMENT>
</SEC-DOCUMENT>