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 * JP MORGAN PARTNERS 23A SBIC LP   2. Issuer Name and Ticker or Trading Symbol SUNCOM WIRELESS HOLDINGS, INC. [TPC] 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) J.P. MORGAN PARTNERS, LLC, 1221 AVENUE OF THE AMERICAS 40TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 05/10/2006 (Street) NEW YORK, NY 10020 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 Class A Common Stock 05/10/2006   A(1)   15,000 A $ 1.42 9,112,907 D

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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

Class B Common Stock

(2)

(3)

(4)

Class A COmmon Stock

7,926,099

7,926,099

I

See Footnote (5)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JP MORGAN PARTNERS 23A SBIC LP J.P. MORGAN PARTNERS, LLC 1221 AVENUE OF THE AMERICAS 40TH FLOOR NEW YORK, NY 10020		X
J P MORGAN PARTNERS SBIC LLC J.P. MORGAN PARTNERS, LLC 1221 AVENUE OF THE AMERICAS 40TH FLOOR NEW YORK, NY 10020		X
JP MORGAN SBIC HOLDINGS LLC 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK, NY 10020		X
JP MORGAN CAPITAL LP 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK, NY 10020		X
JP MORGAN CAPITAL MANAGEMENT CO LLC 1221 AVENUE OF THE AMERICAS 39TH FLOOR NEW YORK, NY 10020		X

Signatures

/s/ J.P. Morgan Partners (23A SBIC), L.P.		05/11/2006
**Signature of Reporting Person		Date
/s/ Arnold L. Chavkin, Chief Investment Officer		05/11/2006
**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)	These shares of Class A Common Stock were granted to Arnold L. Chavkin, a director of the Issuer pursuant to a Director Stock Award Agreement by and between SunCom Wireless Holdings, Inc. (formerly known as Triton PCS Holdings, Inc.) and Arnold L. Chavkin dated as of May 10, 2006. The Stock Award shall vest on August 15, 2008. Arnold L. Chavkin is obligated to transfer these shares to the Reporting Person at the request of the Reporting Person.
(2)	These shares of Class B Common Stock are convertible on a one for one basis.
(3)	These shares of Class B Common Stock are convertible into Class A Common Stock either (i) when it is transferred to anyone other than J.P. Morgan SBIC, LLC or any of its affiliates or (ii) upon receipt by the Company of a written opinion of Counsel to the effect that the holder of the stock should not be considered an affiliate of the Issuer as defined by Rule 405 of the Securities Act of 1933 after giving effect to the conversion.
(4)	The right to convert does not expire.
(5)	As a result of the merger of J.P. Morgan Incorporated and The Chase Manhattan Corporation on December 31, 2000, The Chase Manhattan Corporation (now known as JPMorgan Chase & Co.) acquired J.P. Morgan Capital Corporation (now known as JPMP Capital, LLC), the indirect owner of these securities. Neither the Reporting Person nor any of its ultimate security holders other than JPMorgan Chase & Co. has a beneficial ownership of, or a pecuniary interest in, the securities owned by J.P. Morgan SBIC, LLC.

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