Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  TA ASSOCIATES AP IV LP
2. Date of Event Requiring Statement (Month/Day/Year)
03/05/2007
3. Issuer Name and Ticker or Trading Symbol
METROPCS COMMUNICATIONS INC [N/A]
(Last)
(First)
(Middle)
JOHN HANCOCK TOWER, 200 CLARENDON ST. 56TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
See General Remarks
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BOSTON, MA 02116
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 413,061
I
See Footnote 1 (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series D Convertible Preferred Stock   (2)   (2) Common Stock 312,426 (2) (3) $ 9.4 (2) I See Footnote 1 (1)
Series E Convertible Preferred Stock   (4)   (4) Common Stock 70,706 (4) (5) $ 27 (4) I See Footnote 1 (1)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
TA ASSOCIATES AP IV LP
JOHN HANCOCK TOWER
200 CLARENDON ST. 56TH FLOOR
BOSTON, MA 02116
  X     See General Remarks

Signatures

TA Associates AP IV L.P 03/07/2007
**Signature of Reporting Person Date

By: TA Associates, Inc., its General Partner 03/07/2007
**Signature of Reporting Person Date

By: Thomas P. Alber, Chief Financial Officer 03/07/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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 reporting person may be deemed to have an indirect pecuniary interest as the General Partner of TA/Atlantic and Pacific IV L.P. The reporting person disclaims benefical ownership of such shares because the reporting person's indirect pecuniary interest is subject to indeterminable future events.
(2) The Series D Convertible Preferred Stock (the "Series D Preferred Stock") and the accrued but unpaid dividends thereon will automatically convert into common stock (the "Common Stock") of MetroPCS Communications, Inc. (the "Issuer") at the price of $9.40 per share of Common Stock upon (i) completion of a Qualified Public Offering (as defined in the Securities Purchase Agreement, as amended); (ii) the Common Stock trading on a national securities exchange for a period of 30 consecutive trading dates above a price that implies a market valuation of the Series D Preferred Stock in excess of twice the initial purchase price of the Series D Preferred Stock; or (iii) the date specified by the holders of two-thirds of the initial purchase price of the Series D Preferred Stock. If not previously converted, the Issuer is required to redeem all outstanding shares of Series D Preferred Stock on July 17, 2015, at the liquidation value plus accrued but unpaid dividends.
(3) This amount includes 69,990 shares of Common Stock issuable pursuant to accrued dividends.
(4) The Series E Convertible Preferred Stock (the "Series E Preferred Stock") and the accrued but unpaid dividends thereon will automatically convert into common stock (the "Common Stock") of MetroPCS Communications, Inc. (the "Issuer") at the price of $27.00 per share of Common Stock upon (i) completion of a Qualified Public Offering (as defined in the Second Amended and Restated Stockholders Agreement); (ii) the Common Stock trading on a national securities exchange for a period of 30 consecutive trading dates above a price that implies a market valuation of the Series E Preferred Stock in excess of twice the initial purchase price of the Series E Preferred Stock; or (iii) the date specified by the holders of two-thirds of the initial purchase price of the Series E Preferred Stock. If not previously converted, the Issuer is required to redeem all outstanding shares of Series E Preferred Stock on July 17, 2015, at the liquidation value plus accrued but unpaid dividends.
(5) This amount includes 5,891 shares of Common Stock issuable pursuant to accrued dividends.
 
Remarks:
The Reporting Person is a member of a 13(d) group owning more than 10%.  The Reporting Person has a representative on the issuer's board of directors.  C. Kevin Landry currently serves as the Reporting Person's representative on the board of directors and, as such, the Reporting Person is deemed a director of the issuer.

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