Document:

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                                                           Exhibit 4.29

                                 AMENDMENT NO. 1
                          TO THIRD AMENDED AND RESTATED
                      NOVEMBER 1998 STOCKHOLDERS' AGREEMENT

                AMENDMENT NO. 1 (this "AMENDMENT") dated as of July ___, 2000
by and among the parties set forth on the signature pages of this Amendment.

                Section 1. DEFINITIONS. Except as otherwise defined in this
Amendment, terms defined in the Third Amended and Restated November 1998
Stockholders' Agreement dated as of March 10, 2000 (as from time to time
amended, the "AGREEMENT") are used herein as defined therein.

                Section 2. AMENDMENTS. The Company has requested the
Principal Stockholders to amend the Agreement in certain respects, and the
Principal Stockholders are willing to so amend the Agreement, all on the
terms and conditions set forth herein. Accordingly, the parties hereto hereby
agree that effective as of the date hereof, the Agreement shall be amended as
follows:

                A. BOARD OF DIRECTORS SIZE. The reference to "thirteen (13)"
        relating to the authorized size of the Board of Directors in Section
        1.1(a) is deleted and replaced with a reference to "fourteen (14)".

                B. NON-EMPLOYEE DIRECTORS. The reference to "eight (8)" relating
        to the number of non-employee directors in Section 1.1(f) is deleted and
        replaced with a reference to "nine (9)".

                C. GENERAL. Any references to the Agreement after the date first
        set forth above (including but not limited to references in the
        Agreement to "this Agreement" (including indirect references such as
        "hereunder", "hereby", "herein" and "hereof")) shall be deemed to be
        references to the Agreement as amended hereby. For purposes of Section
        5.1 of the Agreement, "the date of this Agreement" shall continue to be
        March 10, 2000.

                Section 3. MISCELLANEOUS. Except as herein provided, the
Agreement shall remain unchanged and continue in full force and effect. This
Amendment may be executed in any number of counterparts, all of which taken
together shall constitute one and the same instrument and any of the parties
hereto may execute this Amendment by signing any such counterpart. This
Amendment shall be governed by, and construed in accordance with, the law of
the State of Delaware (excluding the choice-of-law rules thereof). The
headings of the sections and subsections of this Amendment have been inserted
for convenience only and shall not be deemed to be a part of this Amendment.

<PAGE>

               IN WITNESS WHEREOF, the parties hereto have caused this Amendment
to be duly executed and delivered as of the date first above written.

McLEODUSA INCORPORATED

By: /s/ J. Lyle Patrick
    ---------------------------------
    Name:  J. Lyle Patrick
    Title:  Group Vice President/CFO

/s/ Clark E. McLeod                                /s/ Mary E. McLeod
------------------------------------               ----------------------------
Clark E. McLeod                                    Mary E. McLeod

ALLIANT ENERGY CORPORATION

By: /s/ James E. Hoffman
    -----------------------------
    Name:  James E. Hoffman
    Title:

ALLIANT ENERGY FOUNDATION, INC.

By: /s/ Edward M. Gleason
    ------------------------------
    Name:  Edward M. Gleason
    Title:  Treasurer

                                      -2-

<PAGE>

ALLIANT ENERGY INVESTMENTS, INC.

By: /s/ James E. Hoffman
    ------------------------------
    Name:  James E. Hoffman
    Title:  President, Alliant Energy Resources

HEARTLAND PROPERTIES, INC.

By: /s/ Henry Wertheimer
    -----------------------------
    Name:  Henry Wertheimer
    Title:  Vice President/Treasurer

LNT COMMUNICATIONS LLC
By:   Alliant Energy Resources, Inc.,
      its sole member

By: /s/ James E. Hoffman
    ------------------------------
    Name:  James E. Hoffman
    Title:  President

                                          Gail G. Lumpkin Trust Dated 12/14/85

/s/ Richard A. Lumpkin                   BY: /s/ Richard A. Lumpkin
--------------------------                   -------------------------------
Richard A. Lumpkin                           Richard A. Lumpkin, Trustee

                                         -3-

<PAGE>

The two trusts created under the Mary Green Lumpkin Gallo Trust Agreement dated
December 29, 1989, one for the benefit of each of:
        Benjamin Iverson Lumpkin
        Elizabeth Arabella Lumpkin

United States Trust Company of
New York, Trustee

By: /s/ Loraine B. Tsavaris
   -------------------------------
    Name:  Loraine B. Tsavaris
    Title:  Managing Director

The two trusts created under the Richard Adamson Lumpkin Grandchildren's Trust
dated September 5, 1980, one for the benefit of each of:
        Benjamin Iverson Lumpkin
        Elizabeth Arabella Lumpkin

United States Trust Company of
New York, Trustee

By: /s/ Loraine B. Tsavaris
   -------------------------------
    Name:  Loraine B. Tsavaris
    Title:  Managing Director

The trust established by Richard Adamson Lumpkin under the Trust Agreement
dated February 6, 1970, for the benefit of Richard Anthony Lumpkin

United States Trust Company of
New York, Trustee

By: /s/ Loraine B. Tsavaris
   -----------------------------
    Name:  Loraine B. Tsavaris
    Title:  Managing Director

                                        -4-

<PAGE>

The two 1990 Personal Income Trusts established by Richard A. Lumpkin, dated
April 20, 1990, one for the benefit of each of:
        Benjamin Iverson Lumpkin
        Elizabeth Arabella Lumpkin

__________________________________
David R. Hodgman, Trustee

__________________________________
Steven L. Grissom, Trustee

                                       -5-<PAGE>

                                                                    EXHIBIT 4.30

                                 AMENDMENT NO. 1
                          TO THIRD AMENDED AND RESTATED
                      JANUARY 1999 STOCKHOLDERS' AGREEMENT

        AMENDMENT NO. 1 (this "AMENDMENT") dated as of July 7, 2000 by and among
the parties set forth on the signature pages of this Amendment.

                Section 1. DEFINITIONS. Except as otherwise defined in this
Amendment, terms defined in the Third Amended and Restated January 1999
Stockholders' Agreement dated as of March 10, 2000 (as from time to time
amended, the "AGREEMENT") are used herein as defined therein.

                Section 2. AMENDMENTS. The Company has requested the Original
Stockholders and the M/C Stockholders to amend the Agreement in certain
respects, and the Original Stockholders and the M/C Stockholders are willing to
so amend the Agreement, all on the terms and conditions set forth herein.
Accordingly, the parties hereto hereby agree that effective as of the date
hereof, the Agreement shall be amended as follows:

                A. BOARD OF DIRECTORS SIZE. The reference to "thirteen (13)"
        relating to the authorized size of the Board of Directors in Section
        2.1(a) is deleted and replaced with a reference to "fourteen (14)".

                B. NON-EMPLOYEE DIRECTORS. The reference to "seven (7)" relating
        to the number of non-employee directors in Section 2.1(g) is deleted and
        replaced with a reference to "eight (8)".

                C. GENERAL. Any references to the Agreement after the date first
        set forth above (including but not limited to references in the
        Agreement to "this Agreement" (including indirect references such as
        "hereunder", "hereby", "herein" and "hereof')) shall be deemed to be
        references to the Agreement as amended hereby. For purposes of Section
        5.1 of the Agreement, "the date of this Agreement" shall continue to be
        March 10, 2000.

                Section 3. MISCELLANEOUS. Except as herein provided, the
Agreement shall remain unchanged and continue in full force and effect. This
Amendment may be executed in any number of counterparts, all of which taken
together shall constitute one and the same instrument and any of the parties
hereto may execute this Amendment by signing any such counterpart. This
Amendment shall be governed by, and construed in accordance with, the law of the
State of Delaware (excluding the choice-of-law rules thereof). The headings of
the sections and subsections of this Amendment have been inserted for
convenience only and shall not be deemed to be a part of this Amendment.

<PAGE>

               IN WITNESS WHEREOF, the parties hereto have caused this Amendment
to be duly executed and delivered as of the date first above written.

McLEODUSA INCORPORATED

By:     /s/ J. Lyle Patrick
    ----------------------------------
      Name:  J. Lyle Patrick
      Title:  Group Vice President/CFO

      /s/ Clark E. McLeod                      /s/ Mary E. McLeod
--------------------------------------      ---------------------------------
Clark E. McLeod                             Mary E. McLeod

M/C INVESTORS L.L.C.

By      /s/ Peter H.O. Claudy
   ----------------------------------
     Name:  Peter H.O. Claudy
     Title:  Manager

MEDIA/COMMUNICATIONS PARTNERS III LIMITED PARTNERSHIP

By: M/C III L.L.C., its General Partner

By:     /s/ Peter H.O. Claudy
    ----------------------------------
     Name:  Peter H.O. Claudy
     Title:  Manager

ALLIANT ENERGY CORPORATION, INC.

By      /s/ James E. Hoffman
   ----------------------------------
    Name:  James E. Hoffman
    Title:

                                       2

<PAGE>

ALLIANT ENERGY FOUNDATION

By:     /s/ E.M. Gleason
    ---------------------------------
    Name:  Edward M. Gleason
    Title:  Treasurer

ALLIANT ENERGY INVESTMENTS, INC.

By:  /s/ James E. Hoffman
    ---------------------------------
    Name:  James E. Hoffman
    Title:  President, Alliant Energy Resources

HEARTLAND PROPERTIES, INC.

By:  /s/ Henry Wertheimer
    ---------------------------------
    Name:  Henry Wertheimer
    Title:  Vice President/Treasurer

LNT COMMUNICATIONS LLC
By:  Alliant Energy Resources, Inc., its sole member

By:     /s/ James E. Hoffman
    ---------------------------------
     Name:  James E. Hoffman
     Title:  President                      Gail G. Lumpkin Trust Dated 12/14/85

/s/ Richard A. Lumpkin                      BY: /s/ Richard A. Lumpkin
    ---------------------------------           -------------------------------
Richard A. Lumpkin                              Richard A. Lumpkin, Trustee

                                       3
<PAGE>

The two trusts created under the Mary       The two trusts created under the
Green Lumpkin Gallo Trust Agreement dated   Richard Adamson Lumpkin
December 29, 1989, one for the benefit      Grandchildren's Trust dated
of each of:                                 September 5, 1980, one for
                                            the benefit of each of:
    Benjamin Iverson Lumpkin                    Benjamin Iverson Lumpkin
    Elizabeth Arabella Lumpkin                  Elizabeth Arabella Lumpkin

United States Trust Company                 United States Trust Company
of New York, Trustee                        of New York, Trustee

By:    /s/ Loraine B. Tsavaris              By:    /s/ Loraine B. Tsavaris
       ------------------------------           -------------------------------
       Name:  Loraine B. Tsavaris                  Name:  Loraine B. Tsavaris
       Title:  Managing Director                   Title:  Managing Director

The trust established by Richard Adamson    The two 1990 Personal Income Trusts
Lumpkin under the Trust Agreement dated     established by Richard A. Lumpkin,
February 6, 1970, for the benefit of        dated April 20, 1990, one for the
Richard Anthony Lumpkin.                    benefit of each of:
                                                Benjamin Iverson Lumpkin
                                                Elizabeth Arabella Lumpkin

United States Trust Company
of New York, Trustee
                                                /s/ David R. Hodgman
                                            -----------------------------------
                                            David R. Hodgman, Trustee

By:  /s/ Loraine B. Tsavaris                    /s/ Steven L. Grissom
    ---------------------------------       -----------------------------------
    Name:  Loraine B. Tsavaris              Steven L. Grissom, Trustee
    Title:  Managing Director

                                       4

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