    <SEC-DOCUMENT>0001104659-24-038435-index.html : 20240325
    <SEC-HEADER>0001104659-24-038435.hdr.sgml : 20240325
    <ACCEPTANCE-DATETIME>20240325160235
    ACCESSION NUMBER:		0001104659-24-038435
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240325
    DATE AS OF CHANGE:		20240325
    EFFECTIVENESS DATE:		20240325

    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:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-51829
    		FILM NUMBER:		24779157

    	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>ARS
    <SEQUENCE>1
    <FILENAME>tm241000d3_ars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: tm241000d3_ars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>