<PAGE>
                                                                    EXHIBIT 24.1



                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                              /s/ John A. Schofield
                        ---------------------------------
                                John A. Schofield






<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                                /s/ Donald Green
                        ---------------------------------
                                  Donald Green


<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                               /s/ Ruann F. Ernst
                        ---------------------------------
                                 Ruann F. Ernst






<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.



                            /s/ Clifford H. Higgerson
                        ---------------------------------
                              Clifford H. Higgerson






<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                              /s/ William L. Keever
                        ---------------------------------
                                William L. Keever





<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                              /s/ Martin R. Klitten
                        ---------------------------------
                                Martin R. Klitten






<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                                 /s/ Dan Rasdal
                        ---------------------------------
                                   Dan Rasdal






<PAGE>

                                POWER OF ATTORNEY


        I, the undersigned, appoint Amy M. Paul or, in her absence or inability
to act, R. Leon Blackburn, or either of them, my attorney-in-fact for me and in
my name, place and stead to execute for me on my behalf in my capacity as a
Director of Advanced Fibre Communications, Inc., the Annual Report on Form 10-K
of Advanced Fibre Communications, Inc. for the fiscal year ended December 31,
2001, to be filed with the Securities and Exchange Commission under the
Securities Exchange Act of 1934, and any and all amendments thereto, hereby
ratifying, approving and confirming all that any such attorney-in-fact may do by
virtue of this Power of Attorney. IN WITNESS WHEREOF, I have executed this Power
of Attorney as of March 20, 2002.




                                /s/ Alex Sozonoff
                        ---------------------------------
                                  Alex Sozonoff