-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VxPQeqlCs8Ox4cb3L9X8djDRPR1/SE4VlNCyagLEncl1yeEfj2+yVoUnFNxexcfJ
 Hi0FtWAKzKme8oBwUtBgrQ==

<SEC-DOCUMENT>0001209191-09-048095.txt : 20091008
<SEC-HEADER>0001209191-09-048095.hdr.sgml : 20091008
<ACCEPTANCE-DATETIME>20091008152322
ACCESSION NUMBER:		0001209191-09-048095
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090929
FILED AS OF DATE:		20091008
DATE AS OF CHANGE:		20091008

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			bin Abdullah bin Abdulrahman Khalid
		CENTRAL INDEX KEY:			0001473960

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33963
		FILM NUMBER:		091111998

	MAIL ADDRESS:	
		STREET 1:		C/O BARALONCO LIMITED
		STREET 2:		CRAIGMUIR CHAMBERS, PO BOX 71
		CITY:			ROAD TOWN, TORTOLA
		STATE:			D8
		ZIP:			VG1110

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Iridium Communications Inc.
		CENTRAL INDEX KEY:			0001418819
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATIONS EQUIPMENT, NEC [3669]
		IRS NUMBER:				221344998
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6707 DEMOCRACY BOULEVARD
		STREET 2:		SUITE 300
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20817
		BUSINESS PHONE:		301-571-6200

	MAIL ADDRESS:	
		STREET 1:		6707 DEMOCRACY BOULEVARD
		STREET 2:		SUITE 300
		CITY:			BETHESDA
		STATE:			MD
		ZIP:			20817

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GHL Acquisition Corp.
		DATE OF NAME CHANGE:	20071119

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Baralonco Ltd
		CENTRAL INDEX KEY:			0001473963
		STATE OF INCORPORATION:			D8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33963
		FILM NUMBER:		091111999

	BUSINESS ADDRESS:	
		STREET 1:		CRAIGMUIR CHAMBERS
		STREET 2:		PO BOX 71
		CITY:			ROAD TOWN, TORTOLA
		STATE:			D8
		ZIP:			VG 1110
		BUSINESS PHONE:		284-494-2233

	MAIL ADDRESS:	
		STREET 1:		CRAIGMUIR CHAMBERS
		STREET 2:		PO BOX 71
		CITY:			ROAD TOWN, TORTOLA
		STATE:			D8
		ZIP:			VG 1110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-09-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001418819</issuerCik>
        <issuerName>Iridium Communications Inc.</issuerName>
        <issuerTradingSymbol>IRDM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001473963</rptOwnerCik>
            <rptOwnerName>Baralonco Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 71, ROAD TOWN</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TORTOLA</rptOwnerCity>
            <rptOwnerState>D8</rptOwnerState>
            <rptOwnerZipCode>VG1110</rptOwnerZipCode>
            <rptOwnerStateDescription>VIRGIN ISLANDS, BRITISH</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001473960</rptOwnerCik>
            <rptOwnerName>bin Abdullah bin Abdulrahman Khalid</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 71, ROAD TOWN, TORTOLA</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BRITISH VIRGIN ISLANDS</rptOwnerCity>
            <rptOwnerState>D8</rptOwnerState>
            <rptOwnerZipCode>VG1110</rptOwnerZipCode>
            <rptOwnerStateDescription>VIRGIN ISLANDS, BRITISH</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-09-29</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11648080</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is a joint filing with the sole owner of Baralonco Limited, Khalid bin Abdullah bin Abdulrahman, at the same business address. The joint filer is the Indirect Owner of the same shares as to which Baralonco Limited is the Direct Owner.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Steven B. Pfeiffer, Attorney-in-fact</signatureName>
        <signatureDate>2009-10-08</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Steven B. Pfeiffer, Attorney-in-fact</signatureName>
        <signatureDate>2009-10-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----