SEC FORM 3

SEC Form 3

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
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

KAPLAN PHILIP N

(Last)

(First)

(Middle)

555 ANTON BLVD., SUITE 400

(Street)

COSTA MESA

92626

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
02/20/2007

3. Issuer Name and Ticker or Trading Symbol
INTERNAP NETWORK SERVICES CORP [ INAP ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Strategy Officer

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	483,546	I	By Family Trust
Common Stock	5,952	I	By Spouse

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: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee Stock Options (right to buy)	12/02/2005⁽¹⁾	12/02/2009	Common Stock	25,660	$4.05	D
Employee Stock Options (right to buy)	12/16/2006⁽²⁾	12/16/2010	Common Stock	26,943	$10.52	D
Employee Stock Options (right to buy)	07/13/2007⁽³⁾	07/13/2011	Common Stock	76,980	$17.3	D

Explanation of Responses:

1. One-third vested on December 2, 2005 and 1/12 vest each quarter thereafter until fully vested.

2. One-fourth vested on December 16, 2006 and 1/16 vest at the end of each quarter thereafter.

3. One-fourth vest on July 13, 2007 and 1/16 vest at the end of each quarter thereafter.

Remarks:

	/s/ Art Sida, Attorney-in-Fact	03/01/2007
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.