<SUBMISSION>
<ACCESSION-NUMBER>0001209191-13-005771
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20130130
<FILING-DATE>20130201
<DATE-OF-FILING-DATE-CHANGE>20130201
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MITSUI & CO USA INC
<CIK>0001283674
<STATE-OF-INCORPORATION>NY
<FISCAL-YEAR-END>0331
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-35155
<FILM-NUMBER>13568071
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>200 PARK AVE
<STREET2>STE 600
<CITY>NEW YORK
<STATE>NY
<ZIP>10166-0130
</MAIL-ADDRESS>
<FORMER-NAME>
<FORMER-CONFORMED-NAME>MITUSI CO USA INC
<DATE-CHANGED>20040315
</FORMER-NAME>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>BOINGO WIRELESS INC
<CIK>0001169988
<ASSIGNED-SIC>4899
<IRS-NUMBER>000000000
<STATE-OF-INCORPORATION>DE
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>10960 WILSHIRE BLVD., SUITE 800
<CITY>LOS ANGELES
<STATE>CA
<ZIP>90024
<PHONE>310-586-5180
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>10960 WILSHIRE BLVD., SUITE 800
<CITY>LOS ANGELES
<STATE>CA
<ZIP>90024
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>MITSUI & CO LTD
<CIK>0000067099
<ASSIGNED-SIC>5172
<FISCAL-YEAR-END>0331
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-35155
<FILM-NUMBER>13568072
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2-1 OTEMACHI 1 CHOME
<STREET2>CHIYODA-KU
<CITY>TOKYO
<STATE>M0
<ZIP>100-0004
<PHONE>81-3-3285-7910
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2-1 OTEMACHI 1 CHOME
<STREET2>CHIYODA-KU
<CITY>TOKYO
<STATE>M0
<ZIP>100-0004
</MAIL-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Corporate Development Fund of Mitsui & Co., Ltd.
<CIK>0001519555
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-35155
<FILM-NUMBER>13568070
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>200 PARK AVE.
<CITY>NEW YORK
<STATE>NY
<ZIP>10166
<PHONE>858-436-8000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>200 PARK AVE.
<CITY>NEW YORK
<STATE>NY
<ZIP>10166
</MAIL-ADDRESS>
</REPORTING-OWNER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>Mitsui & Co. Principal Investments Ltd.
<CIK>0001541934
<STATE-OF-INCORPORATION>M0
<FISCAL-YEAR-END>0331
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-35155
<FILM-NUMBER>13568069
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>NIHON KEIZAI SHIMBUN, TOKYO HEADQUARTERS
<STREET2>8TH FLOOR, 1-3-7 OTEMACHI, CHIYODA-KU
<CITY>TOKYO
<STATE>M0
<ZIP>100-0004
<PHONE>81-03-3285-3260
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>NIHON KEIZAI SHIMBUN, TOKYO HEADQUARTERS
<STREET2>8TH FLOOR, 1-3-7 OTEMACHI, CHIYODA-KU
<CITY>TOKYO
<STATE>M0
<ZIP>100-0004
</MAIL-ADDRESS>
<FORMER-NAME>
<FORMER-CONFORMED-NAME>Mitsui & Co. Principal Investmenst Ltd.
<DATE-CHANGED>20120209
</FORMER-NAME>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c31206_4x0.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2013-01-30</periodOfReport>

    <issuer>
        <issuerCik>0001169988</issuerCik>
        <issuerName>BOINGO WIRELESS INC</issuerName>
        <issuerTradingSymbol>WIFI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000067099</rptOwnerCik>
            <rptOwnerName>MITSUI &amp; CO LTD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2-1, OHTEMACHI 1-CHOME</rptOwnerStreet1>
            <rptOwnerStreet2>CHIYODA-KU</rptOwnerStreet2>
            <rptOwnerCity>TOKYO</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>100-0004</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001283674</rptOwnerCik>
            <rptOwnerName>MITSUI &amp; CO USA INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 PARK AVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10166</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001519555</rptOwnerCik>
            <rptOwnerName>Corporate Development Fund of Mitsui &amp; Co., Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>NIHON KEIZAI SHIMBUN, THB
8TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2>1-3-7 OTEMACHI</rptOwnerStreet2>
            <rptOwnerCity>TOKYO</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>100-0004</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001541934</rptOwnerCik>
            <rptOwnerName>Mitsui &amp; Co. Principal Investments Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>NIHON KEIZAI SHIMBUN, THB
8TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2>1-3-7 OTEMACHI CHIYODA-KU</rptOwnerStreet2>
            <rptOwnerCity>TOKYO</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>100-0004</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</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>2013-01-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5401</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.6339</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2167435</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Corporate Development Fund of Mitsui &amp; Co., Ltd.</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2013-01-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3743</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.6727</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2163692</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Corporate Development Fund of Mitsui &amp; Co., Ltd.</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2013-02-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2396</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.8316</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2161296</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Corporate Development Fund of Mitsui &amp; Co., Ltd.</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2381001</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Mitsui &amp; Co. (U.S.A.), Inc.</value>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The prices reported in Column 4 are weighted average prices.  The shares were sold in multiple transactions at prices ranging from $7.5775 to $7.87, inclusive.  The reporting person undertakes to provide to Boingo Wireless, Inc., any security holder of Boingo Wireless, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.</footnote>
        <footnote id="F2">The prices reported in Column 4 are weighted average prices.  The shares were sold in multiple transactions at prices ranging from $7.57 to $7.73, inclusive.  The reporting person undertakes to provide to Boingo Wireless, Inc., any security holder of Boingo Wireless, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.</footnote>
        <footnote id="F3">The prices reported in Column 4 are weighted average prices.  The shares were sold in multiple transactions at prices ranging from $7.74 to $7.90, inclusive.  The reporting person undertakes to provide to Boingo Wireless, Inc., any security holder of Boingo Wireless, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (3) to this Form 4.</footnote>
        <footnote id="F4">Mitsui &amp; Co., Ltd. is the direct 100% owner of Mitsui &amp; Co. (U.S.A.), Inc.  Corporate Development Fund of Mitsui &amp; Co., Ltd. is 99% directly owned by Mitsui &amp; Co., Ltd. and 1% directly owned by Mitsui &amp; Co. Principal Investments Ltd., who has managing authority over Corporate Development Fund of Mitsui &amp; Co., Ltd.  Accordingly, Mitsui &amp; Co. Principal Investments Ltd. and Mitsui &amp; Co., Ltd. may be deemed to be the beneficial owners of the shares of Common Stock held by Mitsui &amp; Co. (U.S.A.), Inc. and Corporate Development Fund of Mitsui &amp; Co. (continued to footnote 5)</footnote>
        <footnote id="F5">(continued from footnote 4) but each disclaims beneficial ownership of such securities and this report shall not be deemed an admission that any of them is the beneficial owner of such securities, except to the extent of its pecuniary interests therein.  Mitsui &amp; Co. (U.S.A.), Inc. and Corporate Development Fund of Mitsui &amp; Co., Ltd may be deemed to beneficially own the securities held by each other but disclaim beneficial ownership of such securities and this report shall not be deemed an admission that either of them is the beneficial owner of such securities, except to the extent of their pecuniary interests therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Adam Walczak as Attorney-in-fact for Mitsui &amp; Co., Ltd.</signatureName>
        <signatureDate>2013-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Adam Walczak as Attorney-in-fact for Mitsui &amp; Co. (U.S.A.), Inc.</signatureName>
        <signatureDate>2013-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Adam Walczak as Attorney-in-fact for Corporate Development Fund of Mitsui &amp; Co., Ltd.</signatureName>
        <signatureDate>2013-02-01</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Adam Walczak as Attorney-in-fact for Mitsui &amp; Co. Principal Investments Ltd.</signatureName>
        <signatureDate>2013-02-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
