-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JINMYkoAGUQov+22yr/nQ/iNtt+nEnCVpoMUnlr2THWyMnjgp2cy9yvEaX464mBt
 FhvEcZkQHV1cQL4q+OH71Q==

<SEC-DOCUMENT>0001506389-11-000001.txt : 20110207
<SEC-HEADER>0001506389-11-000001.hdr.sgml : 20110207
<ACCEPTANCE-DATETIME>20110207105950
ACCESSION NUMBER:		0001506389-11-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110203
FILED AS OF DATE:		20110207
DATE AS OF CHANGE:		20110207

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AUTOINFO INC
		CENTRAL INDEX KEY:			0000351017
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING & COURIER SERVICES (NO AIR) [4210]
		IRS NUMBER:				132867481
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 4383
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06907-0383
		BUSINESS PHONE:		2019301800

	MAIL ADDRESS:	
		STREET 1:		PO BOX 4383
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06907-0383

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Investors Management Corp
		CENTRAL INDEX KEY:			0001506389
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1229

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11497
		FILM NUMBER:		11576967

	BUSINESS ADDRESS:	
		STREET 1:		5151 GLENWOOD AVENUE
		STREET 2:		SUITE 300
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27612
		BUSINESS PHONE:		919-881-5200

	MAIL ADDRESS:	
		STREET 1:		5151 GLENWOOD AVENUE
		STREET 2:		SUITE 300
		CITY:			RALEIGH
		STATE:			NC
		ZIP:			27612
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000351017</issuerCik>
        <issuerName>AUTOINFO INC</issuerName>
        <issuerTradingSymbol>auto.ob</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001506389</rptOwnerCik>
            <rptOwnerName>Investors Management Corp</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5151 GLENWOOD AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>RALEIGH</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27612</rptOwnerZipCode>
            <rptOwnerStateDescription></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>2011-02-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.6</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4394884</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Donald R. Reynolds, by Power of Attorney</signatureName>
        <signatureDate>2011-02-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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