Document:

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                                                                   EXHIBIT 10.47

                 THIRD AMENDMENT TO MASTER FACILITIES AGREEMENT
                          AND ASSIGNMENT AND ASSUMPTION

         This Amendment to the Master Facilities Agreement (the "Facilities
Agreement") between Fiber Technologies Operating Company, LLC and Choice One
Communications Inc. dated May 31, 2000 is entered into as of the 13th day of
June 2002 between FIBER TECHNOLOGIES CONSTRUCTION COMPANY, L.L.C. F/K/A/ FIBER
TECHNOLOGIES OPERATING COMPANY, LLC ("FTCC"), a Delaware limited liability
company having its principal place of business at 140 Allens Creek Road,
Rochester, New York 14618, FIBER TECHNOLOGIES NETWORKS, L.L.C. ("FTN"), a New
York limited liability company having its principal place of business at 140
Allens Creek Road, Rochester, New York 14618 and CHOICE ONE COMMUNICATIONS INC.
("CHOICE"), a Delaware corporation having its principal place of business at 100
Chestnut Street, Suite 600, Rochester, New York 14604 (hereinafter, each
individually, "Party," and collectively, the "Parties").

                                    RECITALS

         WHEREAS, the Parties entered into the Facilities Agreement dated May
31, 2000, which Facilities Agreement governs the rights and obligations of the
Parties; and

         WHEREAS, it is in the mutual interest of the Parties to amend the
Facilities Agreement to replace certain language, as indicated below, of the
original Agreement and

         NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, the receipt of which is hereby acknowledged, the parties
hereto agree as follows:

1.       Amendment.

         14.      TERM AND TERMINATION

                  14.1 Period. The initial term for each City Route shall start
         upon Acceptance of the entire City Route or portion of a City Route as
         described in Exhibit A and shall terminate twenty (20) years from the
         Acceptance of the last Segment of each City Route. Following the
         initial term there will be an automatic renewal term of ten (10) years
         ("Renewal Term"), unless Grantee provides written notice of no less
         than one hundred twenty (120) days prior to the expiration of the
         Initial Term of its intent not to renew ("Initial Term" and "Renewal
         Term," collectively, "Term"); provided, however, that the Parties shall
         mutually agree to a Use Charge for the Renewal Term at the then fair
         market rate, pursuant to the procedures set forth in Exhibit "H"
         hereto.

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         For purposes of any City Route or Segment, the Facilities Agreement
         shall not terminate until the end of the Initial Term or Renewal Term
         of the latest City Route or Segment to be activated. Additional renewal
         terms may be entered into by the mutual written agreement of Grantor
         and Grantee.

         IN WITNESS WHEREOF the parties have executed this Third Amendment to
the Facilities Agreement as of June 13, 2002.

                                FIBER TECHNOLOGIES CONSTRUCTION COMPANY
                                L.L.C. f/k/a FIBER TECHNOLOGIES OPERATING
                                COMPANY, LLC
                                          By: FIBERTECH NETWORKS, LLC

                                By: /s/ Frank Chiaino
                                   --------------------------------------------
                                   Frank Chiaino, Chief Operating Officer

                                FIBER TECHNOLOGIES NETWORKS,  L.L.C.
                                          By: FIBERTECH NETWORKS, LLC

                                By: /s/ Frank Chiaino
                                    -------------------------------------------
                                    Frank Chiaino, Chief Operating Officer

                                CHOICE ONE COMMUNICATIONS INC.

                                By: /s/ Steve M. Dubnik
                                    -------------------------------------------
                                    Steve M. Dubnik
                                    President and CEO<PAGE>

                                                                   EXHIBIT 10.48

                                                CONFIDENTIAL TREATMENT REQUESTED

                 FOURTH AMENDMENT TO MASTER FACILITIES AGREEMENT
                          AND ASSIGNMENT AND ASSUMPTION

         This Amendment to the Master Facilities Agreement (the "Facilities
Agreement") between Fiber Technologies Operating Company, LLC and Choice One
Communications Inc. dated May 31, 2000 is entered into as of the 15th day of
August 2002 between FIBER TECHNOLOGIES CONSTRUCTION COMPANY, L.L.C. F/K/A/ FIBER
TECHNOLOGIES OPERATING COMPANY, LLC ("FTCC"), a Delaware limited liability
company having its principal place of business at 140 Allens Creek Road,
Rochester, New York 14618, FIBER TECHNOLOGIES NETWORKS, L.L.C. ("FTN"), a New
York limited liability company having its principal place of business at 140
Allens Creek Road, Rochester, New York 14618 and CHOICE ONE COMMUNICATIONS INC.
("CHOICE"), a Delaware corporation having its principal place of business at 100
Chestnut Street, Suite 600, Rochester, New York 14604 (hereinafter, each
individually, "Party," and collectively, the "Parties").

                                    RECITALS

         WHEREAS, the Parties entered into the Facilities Agreement dated May
31, 2000, which Facilities Agreement governs the rights and obligations of the
Parties; and

         WHEREAS, it is in the mutual interest of the Parties to amend the
Facilities Agreement to replace certain language, as indicated below, of the
original Agreement and

         NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, the receipt of which is hereby acknowledged, the parties
hereto agree as follows:

1.       Amendment.

         In addition to existing Exhibits, the Parties hereby agree to add the
following additions to Exhibit A, A-1, and E.

Portions of this agreement have been omitted and filed separately with the
Commission pursuant to an application for confidential treatment under Rule
24b-2.

<PAGE>

IN WITNESS WHEREOF the parties have executed this Second Amendment to the
Facilities Agreement as of _________, 2002.

                                                    FIBER TECHNOLOGIES
                                    CONSTRUCTION COMPANY L.L.C. f/k/a FIBER
                                    TECHNOLOGIES OPERATING COMPANY, LLC
                                                    By: FIBERTECH NETWORKS,
                                    LLC

                                    By: /s/ Frank Chiaino
                                        ---------------------------------------
                                        Frank Chiaino, Chief Operating Officer

                                    FIBER TECHNOLOGIES NETWORKS, L.L.C.
                                                    By: FIBERTECH NETWORKS, LLC

                                    By: /s/ Frank Chiaino
                                        ---------------------------------------
                                        Frank Chiaino, Chief Operating Officer

                                    CHOICE ONE COMMUNICATIONS INC.

                                    By: /s/ Joseph A. Calzone
                                        ---------------------------------------
                                        Joseph A. Calzone
                                        SVP Engineering

<PAGE>

                                 AMENDMENT FOUR
                                    EXHIBIT A

                [Confidential Treatment sought for this Schedule]

<PAGE>

                                 AMENDMENT FOUR
                                   EXHIBIT A-1

                [Confidential Treatment sought for this Schedule]

<PAGE>

                                 AMENDMENT FOUR
                                    EXHIBIT E

                [Confidential Treatment sought for this Schedule]<PAGE>

                                                                   EXHIBIT 10.49

                                                CONFIDENTIAL TREATMENT REQUESTED

                 FIFTH AMENDMENT TO MASTER FACILITIES AGREEMENT
                          AND ASSIGNMENT AND ASSUMPTION

         This Amendment to the Master Facilities Agreement (the "Facilities
Agreement") between Fiber Technologies Operating Company, LLC and Choice One
Communications Inc. dated May 31, 2000 is entered into as of the 23rd day of
September 2002 between FIBER TECHNOLOGIES CONSTRUCTION COMPANY, L.L.C. F/K/A/
FIBER TECHNOLOGIES OPERATING COMPANY, LLC ("FTCC"), a Delaware limited liability
company having its principal place of business at 140 Allens Creek Road,
Rochester, New York 14618, FIBER TECHNOLOGIES NETWORKS, L.L.C. ("FTN"), a New
York limited liability company having its principal place of business at 140
Allens Creek Road, Rochester, New York 14618 and CHOICE ONE COMMUNICATIONS INC.
("CHOICE"), a Delaware corporation having its principal place of business at 100
Chestnut Street, Suite 600, Rochester, New York 14604 (hereinafter, each
individually, "Party," and collectively, the "Parties").

                                    RECITALS

         WHEREAS, the Parties entered into the Facilities Agreement dated May
31, 2000, which Facilities Agreement governs the rights and obligations of the
Parties; and

         WHEREAS, it is in the mutual interest of the Parties to amend the
Facilities Agreement to replace certain language, as indicated below, of the
original Agreement and

         NOW, THEREFORE, in consideration of the foregoing and other good and
valuable consideration, the receipt of which is hereby acknowledged, the parties
hereto agree as follows:

1.       Amendment.

         In addition to existing Exhibits, the Parties hereby agree to add the
following additions to Exhibit A, A-1, and E.

Portions of this agreement have been omitted and filed separately with the
Commission pursuant to an application for confidential treatment under Rule
24b-2.

<PAGE>

IN WITNESS WHEREOF the parties have executed this Second Amendment to the
Facilities Agreement as of September 23, 2002.

                                                    FIBER TECHNOLOGIES
                                    CONSTRUCTION COMPANY L.L.C. f/k/a FIBER
                                    TECHNOLOGIES OPERATING COMPANY, LLC
                                                    By: FIBERTECH NETWORKS,
                                    LLC

                                    By: /s/ Frank Chiaino
                                        ---------------------------------------
                                        Frank Chiaino, Chief Operating Officer

                                    FIBER TECHNOLOGIES NETWORKS, L.L.C.
                                                    By: FIBERTECH NETWORKS, LLC

                                    By: /s/ Frank Chiaino
                                        ---------------------------------------
                                        Frank Chiaino, Chief Operating Officer

                                    CHOICE ONE COMMUNICATIONS INC.

                                    By: /s/ Joseph A. Calzone
                                        ---------------------------------------
                                        Joseph A. Calzone
                                        SVP Engineering

<PAGE>

                                 AMENDMENT FIVE

                                    EXHIBIT A

                [Confidential Treatment sought for this Schedule]

<PAGE>

                                 AMENDMENT FOUR

                                   EXHIBIT A-1

                              (Maps to be inserted)

                [Confidential Treatment sought for this Schedule]

<PAGE>

                                 AMENDMENT FIVE
                                    EXHIBIT E

                [Confidential Treatment sought for this Schedule]

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