LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS


Know all by these presents, that the undersigned's hereby makes, constitutes and
appoints Gary Begeman, Shana Smith, Daniel E. Freiman, and/or Sonia M. Davila as
the undersigned's true and lawful attorneys-in-fact, with full power and
authority as hereinafter described on behalf of and in the name, place and stead
of the undersigned to:

(1)	file and request for and on behalf of the undersigned, in the undersigned's
capacity as an officer of NII Holdings, Inc. (the "Company"), an application in
Form ID for access codes to file on Edgar with the Securities and Exchange
Commission;

(2)	prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 (including
and amendments thereto) with respect to the securities of NII Holdings, Inc., a
Delaware corporation (the "Company") with the United States Securities and
Exchange Commission, any national securities exchanges and the Company, as
considered necessary or adivasable under Section 16(a) of the Securities
Exchange Act of 1934 and the rules and regulations promulgated thereunder, as
amended from time to time (the "Exchange Act");

(3)	seek or obtain, as the undersigned's representative and on the undersigned's
behalf, information on transactions in the Company's securities from any third
party, including brokers, employee benefit plan administrators and trustees, and
the undersigned hereby authorizes any such person to release any such
information to the undersigned and approves and ratifies any such release of
information; and

(4)	perform any and all other acts which in the discretion of such
attorneys-in-fact are necessary or desirable for and on behalf of the
undersigned in connection with the foregoing.

The undersigned acknowledges that:

(1)	this Power of Attorney authorizes, but does not require, such
attorneys-in-fact to act in their discretion on information provided to such
attorneys-in-fact without independent verification of such information;

(2)	any documents prepared and/or executed by such attorneys-in-fact on behalf
of the undersigned pursuant to this Power of Attorney will be in such form and
will contain such information and disclosure as such attorneys-in-fact, in his
or her discretion, deemes necessary or desirable;

(3)	neither the Company nor such attorneys-in-fact assumes (i) any liability for
the undersigned's responsibility to comply with the requirement of the Exchange
Act, (ii) any liability of the undersigned for any failure to comply with such
requirements, or (iii) any obligation or liability of the undersigned for profit
disgorgement under Section 16(b) of the Exchange Act; and

(4)	this Power of Attorney does not relieve the undersigned from responsibility
for compliance with the undersigned's obligations under the Exchange Act,
including without limitation the reporting requirements under Section 16 of the
Exchange Act.

	The undersigned hereby gives and grants the foregoing attorneys-in-fact full
power and authority to do and peform all and every act and thing whatsoever
requisite, necessary or appropriate to be done in and about the foregoing
matters as fully to all intents and purposes as the undersigned might or could
do if present, hereby ratifying all that such attorneys-in-fact of, for and on
behalf of the undersigned, shall lawfully do or cause to be done by virtue of
this Limited Power of Attorney.

	This Power of Attorney shall remain in full force and effect until revoked by
the undersigned in a signed writing delivered to such attorneys-in-fact.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 11th day of May, 2010.

Signed (Signature on file)
Alfonso Martinez