Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
MITSUI & CO LTD
   2. Issuer Name and Ticker or Trading Symbol
BOINGO WIRELESS INC [WIFI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
2-1, OHTEMACHI 1-CHOME, CHIYODA-KU		 3. Date of Earliest Transaction (Month/Day/Year)
02/07/2013
(Street)

TOKYO, M0 100-0004		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/07/2013   S   1,700 D $ 7.7853 (1) 2,152,490 I Corporate Development Fund of Mitsui & Co., Ltd. (4) (5)
Common Stock 02/08/2013   S   3,422 D $ 7.7483 (2) 2,149,068 I Corporate Development Fund of Mitsui & Co., Ltd. (4) (5)
Common Stock 02/11/2013   S   4,400 D $ 7.8432 (3) 2,144,668 I Corporate Development Fund of Mitsui & Co., Ltd. (4) (5)
Common Stock               2,381,001 I Mitsui & Co. (U.S.A.), Inc. (4) (5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MITSUI & CO LTD
2-1, OHTEMACHI 1-CHOME
CHIYODA-KU
TOKYO, M0 100-0004		     X    
MITSUI & CO USA INC
200 PARK AVE
NEW YORK, NY 10166		     X    
Corporate Development Fund of Mitsui & Co., Ltd.
NIHON KEIZAI SHIMBUN, THB 8TH FLOOR
1-3-7 OTEMACHI
TOKYO, M0 100-0004		     X    
Mitsui & Co. Principal Investments Ltd.
NIHON KEIZAI SHIMBUN, THB 8TH FLOOR
1-3-7 OTEMACHI CHIYODA-KU
TOKYO, M0 100-0004		     X    

Signatures

 /s/ Adam Walczak as Attorney-in-fact for Mitsui & Co., Ltd.   02/11/2013
**Signature of Reporting Person Date
 /s/ Adam Walczak as Attorney-in-fact for Mitsui & Co. (U.S.A.), Inc.   02/11/2013
**Signature of Reporting Person Date
 /s/ Adam Walczak as Attorney-in-fact for Corporate Development Fund of Mitsui & Co., Ltd.   02/11/2013
**Signature of Reporting Person Date
 /s/ Adam Walczak as Attorney-in-fact for Mitsui & Co. Principal Investments Ltd.   02/11/2013
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The prices reported in Column 4 are weighted average prices. The shares were sold in multiple transactions at prices ranging from $7.73 to $7.88, 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.
(2) The prices reported in Column 4 are weighted average prices. The shares were sold in multiple transactions at prices ranging from $7.69 to $7.85, 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.
(3) The prices reported in Column 4 are weighted average prices. The shares were sold in multiple transactions at prices ranging from $7.795 to $7.88, 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.
(4) Mitsui & Co., Ltd. is the direct 100% owner of Mitsui & Co. (U.S.A.), Inc. Corporate Development Fund of Mitsui & Co., Ltd. is 99% directly owned by Mitsui & Co., Ltd. and 1% directly owned by Mitsui & Co. Principal Investments Ltd., who has managing authority over Corporate Development Fund of Mitsui & Co., Ltd. Accordingly, Mitsui & Co. Principal Investments Ltd. and Mitsui & Co., Ltd. may be deemed to be the beneficial owners of the shares of Common Stock held by Mitsui & Co. (U.S.A.), Inc. and Corporate Development Fund of Mitsui & Co. (continued to footnote 5)
(5) (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 & Co. (U.S.A.), Inc. and Corporate Development Fund of Mitsui & 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.

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