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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934

                                 (RULE 13d-102)

                 INFORMATION TO BE INCLUDED IN STATEMENTS FILED
          PURSUANT TO RULE 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO
                         FILED PURSUANT TO RULE 13d-2(b)

                              (AMENDMENT NO. ____)*

                         MediaCom Communications Corp.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    58446K105
           -----------------------------------------------------------
                                 (CUSIP Number)

                                February 3, 2000
- --------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

 Check the appropriate box to designate the rule pursuant to which this Schedule
 is filed:

   [ ]  Rule 13d-1(b)

   [ ]  Rule 13d-1(c)

   [X]  Rule 13d-1(d)

         * The  remainder of this cover page shall be filled out for a reporting
 person's  initial  filing on this form with  respect  to the  subject  class of
 securities, and for any subsequent amendment containing information which would
 alter the disclosures provided in a prior cover page.

         The information  required in the remainder of this cover page shall not
 be deemed  to be  "filed"  for the  purpose  of  Section  18 of the  Securities
 Exchange Act of 1934 ("Act") or otherwise  subject to the  liabilities  of that
 section  of the Act but shall be  subject  to all other  provisions  of the Act
 (however, see the Notes).



POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION  CONTAINED
IN THIS FORM ARE NOT  REQUIRED TO RESPOND  UNLESS THE FORM  DISPLAYS A CURRENTLY
VALID OMB CONTROL NUMBER.


SEC 1745 (3-98)                   Page 1 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 - -------------------------------------------------------------------------------- 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). J.P. Morgan Partners (23A SBIC), LLC (formerly known as CB Capital Investors, LLC and successor in interest to Chase Manhattan Capital, LLC) 13-398-6302 - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) ............................................................... (b) ............................................................... - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization Delaware - -------------------------------------------------------------------------------- Number of Shares 5. Sole Voting Power 3,223,534 Beneficially Owned ---------------------------------------------------------- by Each Reporting 6. Shared Voting Power Person With: ---------------------------------------------------------- 7. Sole Dispositive Power 3,223,534 - -------------------------------------------------------------------------------- 8. Shared Dispositive Power - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 3,223,534 - -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) - -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 5.3% - -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) - -------------------------------------------------------------------------------- LLC ................................................................................ ................................................................................ ................................................................................ ................................................................................ ................................................................................ ................................................................................ - -------------------------------------------------------------------------------- SEC 1745 (3-98) Page 2 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 ITEM 1. (a) NAME OF ISSUER: MediaCom Communications Corp. (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 100 Crystal Run Road Middletown, NY 10941 ITEM 2. (a) NAME OF PERSON FILING: J.P. Morgan Partners (23A SBIC), LLC Supplemental information relating to the ownership and control of the person filing this statement is included in Exhibit 2(a) attached hereto. (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: 1221 Avenue of the Americas New York, New York 10020 (c) CITIZENSHIP: Delaware (d) TITLE OF CLASS OF SECURITIES (OF ISSUER): Common Stock (e) CUSIP NUMBER: 58446K105 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SS.SS. 240. 13d-1(b) OR 240. 13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A: Not applicable. ITEM 4. OWNERSHIP (a) AMOUNT BENEFICIALLY OWNED: 3,223,534 (b) PERCENT OF CLASS: 5.3% (as of December 31, 2000) (c) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS: (i) 3,223,534 (ii) Not applicable. SEC 1745 (3-98) Page 3 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 (iii) 3,223,534 (iv) Not applicable. ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS Not applicable. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON Not applicable. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP Not applicable. ITEM 9. NOTICE OF DISSOLUTION OF GROUP Not applicable. ITEM 10. CERTIFICATION Not applicable. SEC 1745 (3-98) Page 4 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 13, 2001 J.P. MORGAN PARTNERS (23A SBIC), LLC By: J.P. Morgan Partners (23A Manager), Inc., its Managing Member By: /s/ Jeffrey C. Walker ---------------------------------------------- Name: Jeffrey C. Walker Title: President SEC 1745 (3-98) Page 5 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 EXHIBIT 2(a) This statement is being filed by J.P. Morgan Partners (23A SBIC), LLC (formerly known as CB Capital Investors, LLC and as successor in interest of Chase Manhattan Capital, LLC), a Delaware limited liability company (hereinafter referred to as "JPMP (23A SBIC)"), whose principal business office is located at 1221 Avenue of the Americas, New York, New York 10020. JPMP (23A SBIC) is engaged in the venture capital and leveraged buyout business. The Managing Member of JPMP (23A SBIC) is J.P. Morgan Partners (23A SBIC Manager), Inc. (formerly known as CB Capital Investors, Inc.), a Delaware corporation (hereinafter referred to as "JPMP (23A Manager)"), whose principal business office is located at the same address as JPMP (23A SBIC). JPMP (23A Manager) is also engaged in the venture capital and leveraged buyout business. Set forth on Schedule A hereto and incorporated herein by reference are the names, business addresses, principal occupations and employments of each executive officer and director of JPMP (23A Manager). JPMP (23A Manager) is a wholly owned subsidiary of The Chase Manhattan Bank, a New York corporation (hereinafter referred to as "Chase Bank") which is engaged in the commercial banking business with its principal office located at 270 Park Avenue, New York, New York 10017. Set forth in Schedule B hereto and incorporated herein by reference are the names, business addresses, principal occupations and employments of each executive officer and director of Chase Bank. Chase Bank is a wholly owned subsidiary of J.P. Morgan Chase & Co. (formerly known as The Chase Manhattan Corporation), a Delaware corporation (hereinafter referred to as "JP Morgan Chase") which is engaged (primarily through subsidiaries) in the commercial banking business with its principal office located at 270 Park Avenue, New York, New York 10017. Set forth in Schedule C hereto and incorporated herein by reference are the names, business addresses, principal occupations and employments of each executive officer and director of JP Morgan Chase. SEC 1745 (3-98) Page 6 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 SCHEDULE A J.P. MORGAN PARTNERS (SBIC 23A MANAGER), INC. EXECUTIVE OFFICERS(1) President Jeffrey C. Walker* Executive Vice President Mitchell J. Blutt, M.D.* Executive Vice President Arnold L. Chavkin* Executive Vice President John M.B. O'Connor* Managing Director John R. Baron* Managing Director Christopher C. Behrens* Managing Director David S. Britts* Managing Director Rodney A. Ferguson* Managing Director David Gilbert* Managing Director Evan Graf* Managing Director Eric A. Green* Managing Director Michael R. Hannon* Managing Director Donald J. Hofmann, Jr.* Managing Director W. Brett Ingersoll* Managing Director Alfredo Irigoin* Managing Director Andrew Kahn* Managing Director Jonathan R. Lynch* Managing Director Jonathan Meggs* Managing Director Thomas G. Mendell* Managing Director Stephen P. Murray* Managing Director Joao Neiva de Figueiredo, Ph.D.* Managing Director Timothy Purcell* Managing Director Thomas Quinn* Managing Director Peter Reilly* Managing Director Robert R. Ruggiero, Jr.* Managing Director Susan L. Segal* Managing Director Shahan D. Soghikian* Managing Director Georg Stratenwerth* Managing Director Lindsay Stuart* Managing Director Patrick J. Sullivan* Managing Director Kelly Shackelford* Managing Director Charles R. Walker* Managing Director Timothy J. Walsh* Managing Director Richard D. Waters, Jr.* Managing Director Damion E. Wicker, M.D.* Managing Director Eric R. Wilkinson* Senior Vice President Marcia Bateson* Vice President and Treasurer Elisa R. Stein* Secretary Anthony J. Horan** Assistant Secretary Robert C. Caroll** Assistant Secretary Denise G. Connors** - -------- (1) Each of whom is a United States citizen except for Messrs. Britts, Irigoin, Meggs, Neiva de Figueiredo, Soghikian, Stratenwerth and Stuart. * Principal occupation is employee and/or partner of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas, New York, New York 10020. ** Principal occupation is executive officer and/or employee of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan & Chase & Co., 270 Park Avenue, New York, New York 10017. SEC 1745 (3-98) Page 7 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 DIRECTORS(1) Jeffrey C. Walker* - -------- (1) Each of whom is a United States citizen except for Messrs. Britts, Irigoin, Meggs, Neiva de Figueiredo, Soghikian, Stratenwerth and Stuart. * Principal occupation is employee and/or partner of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas, New York, New York 10020. ** Principal occupation is executive officer and/or employee of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan & Chase & Co., 270 Park Avenue, New York, New York 10017. SEC 1745 (3-98) Page 8 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 SCHEDULE B THE CHASE MANHATTAN BANK EXECUTIVE OFFICERS(1) Chairman of the Board Douglas A. Warner, III* President and Chief Executive Officer William B. Harrison Jr.* Vice Chairman Geoffrey T. Boisi* Vice Chairman David A. Coulter* Managing Director Ramon de Oliveira* Director of Human Resources John J. Farrell* Vice Chairman Walter A. Gubert* Managing Director Thomas B. Ketchum* Director of Corporate Marketing and Communications Frederick W. Hill* Vice Chairman Donald H. Layton* Vice Chairman James B. Lee Jr.* General Counsel William H. McDavid* Vice Chairman Marc J. Shapiro* Managing Partner Jeffrey C. Walker** DIRECTORS(1) NAME PRINCIPAL OCCUPATION OR EMPLOYMENT; BUSINESS OR RESIDENCE ADDRESS - -------------------------------------------------------------------------------- Hans W. Becherer Chairman of the Board Chief Executive Officer Deere & Company One John Deere Place Moline, IL 61265 - -------------------------------------------------------------------------------- Frank A. Bennack, Jr. President and Chief Executive Officer The Hearst Corporation 959 Eighth Avenue New York, New York 10019 - -------------------------------------------------------------------------------- M. Anthony Burns Chairman of the Board and Chief Executive Officer Ryder System, Inc. 3600 N.W. 82nd Avenue Miami, Florida 33166 - -------------------------------------------------------------------------------- H. Laurence Fuller Co-Chairman BP Amoco p.l.c. 1111 Warrenville Road, Suite 25 Chicago, Illinois 60563 - -------------------------------------------------------------------------------- - ------------ (1) Each of the persons named below is a citizen of the United States of America. * Principal occupation is executive officer and/or employee of J.P. Morgan Chase & Co. Business address is c/o J.P. Morgan & Chase & Co., 270 Park Avenue, New York, New York 10017. ** Principal occupation is managing partner of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas New York, New York 10020. SEC 1745 (3-98) Page 9 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 NAME PRINCIPAL OCCUPATION OR EMPLOYMENT; BUSINESS OR RESIDENCE ADDRESS - -------------------------------------------------------------------------------- William H. Gray, III President and Chief Executive Officer The College Fund/UNCF 9860 Willow Oaks Corporate Drive P.O. Box 10444 Fairfax, Virginia 22031 - -------------------------------------------------------------------------------- William B. Harrison, Jr. President and Chief Executive Officer The Chase Manhattan Corporation 270 Park Avenue, 8th Floor New York, New York 10017-2070 - -------------------------------------------------------------------------------- Helene L. Kaplan Of Counsel Skadden, Arps, Slate, Meagher & Flom LLP 919 Third Avenue - Room 29-72 New York, New York 10022 - -------------------------------------------------------------------------------- John R. Stafford Chairman, President and Chief Executive Officer American Home Products Corporation 5 Giralda Farms Madison, New Jersey 07940 - -------------------------------------------------------------------------------- Douglas A. Warner III Chairman of the Board J.P. Morgan Chase & Co. 270 Park Avenue New York, New York 10017 - -------------------------------------------------------------------------------- Marina v.N. Whitman Professor of Business Administration and Public Policy The University of Michigan School of Public Policy 411 Lorch Hall, 611 Tappan Street Ann Arbor, MI 48109-1220 - -------------------------------------------------------------------------------- SEC 1745 (3-98) Page 10 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 SCHEDULE C J.P. MORGAN CHASE & CO. EXECUTIVE OFFICERS(1) Chairman of the Board Douglas A. Warner, III* President and Chief Executive Officer William B. Harrison Jr.* Vice Chairman Geoffrey T. Boisi* Vice Chairman David A. Coulter* Managing Director Ramon de Oliveira* Director of Human Resources John J. Farrell* Vice Chairman Walter A. Gubert* Managing Director Thomas B. Ketchum Director of Corporate Marketing and Communications Frederick W. Hill* Vice Chairman Donald H. Layton* Vice Chairman James B. Lee Jr.* General Counsel William H. McDavid* Vice Chairman Marc J. Shapiro* Managing Partner Jeffrey C. Walker** DIRECTORS(1) PRINCIPAL OCCUPATION OR EMPLOYMENT; NAME BUSINESS OR RESIDENCE ADDRESS - -------------------------------------------------------------------------------- Hans W. Becherer Chairman of the Board Chief Executive Officer Deere & Company One John Deere Place Moline, IL 61265 - -------------------------------------------------------------------------------- Riley P. Bechtel Chairman and Chief Executive Officer Bechtel Group, Inc. P.O. Box 193965 San Francisco, CA 94119-3965 - -------------------------------------------------------------------------------- Frank A. Bennack, Jr. President and Chief Executive Officer The Hearst Corporation 959 Eighth Avenue New York, New York 10019 - -------------------------------------------------------------------------------- Lawrence A. Bossidy Chairman of the Board Honeywell International P.O. Box 3000 Morristown, NJ 07962-2245 - -------------------------------------------------------------------------------- - ------------- (1) Each of whom is a United States citizen. * Principal occupation is executive officer and/or employee of J.P. Morgan Chase & Co. Business address is c/o J.P. ** Principal occupation is managing partner of J.P. Morgan Partners, LLC. Business address is c/o J.P. Morgan Partners, LLC, 1221 Avenue of the Americas New York, New York 10020. SEC 1745 (3-98) Page 11 of 12

SCHEDULE 13G ISSUER: MediaCom Communications Corp. CUSIP NO.: 58446K105 PRINCIPAL OCCUPATION OR EMPLOYMENT; NAME BUSINESS OR RESIDENCE ADDRESS - -------------------------------------------------------------------------------- M. Anthony Burns Chairman of the Board and Chief Executive Officer Ryder System, Inc. 3600 N.W. 82nd Avenue Miami, Florida 33166 - -------------------------------------------------------------------------------- H. Laurence Fuller Co-Chairman BP Amoco p.l.c. 1111 Warrenville Road, Suite 25 Chicago, Illinois 60563 - -------------------------------------------------------------------------------- Ellen V. Furter President American Museum of Natural History Central Park West at 79th Street New York, NY 10024 - -------------------------------------------------------------------------------- William H. Gray, III President and Chief Executive Officer The College Fund/UNCF 9860 Willow Oaks Corporate Drive P.O. Box 10444 Fairfax, Virginia 22031 - -------------------------------------------------------------------------------- William B. Harrison, Jr. President and Chief Executive Officer The Chase Manhattan Corporation 270 Park Avenue, 8th Floor New York, New York 10017-2070 - -------------------------------------------------------------------------------- Helene L. Kaplan Of Counsel Skadden, Arps, Slate, Meagher & Flom LLP 919 Third Avenue - Room 29-72 New York, New York 10022 - -------------------------------------------------------------------------------- Lee R. Raymond Chairman of the Board and Chief Executive Officer Exxon Mobil Corporation 5959 Las Colinas Boulevard Irving,TX 75039-2298 - -------------------------------------------------------------------------------- John R. Stafford Chairman, President and Chief Executive Officer American Home Products Corporation 5 Giralda Farms Madison, New Jersey 07940 - -------------------------------------------------------------------------------- Lloyd D. Ward Former Chairman of Board and Chief Executive Officer of Maytag 13338 Lakeshore Drive Clive, Iowa 50325 - -------------------------------------------------------------------------------- Douglas A. Warner III Chairman of the Board J.P. Morgan Chase & Co. 270 Park Avenue New York, New York 10017 - -------------------------------------------------------------------------------- Marina v.N. Whitman Professor of Business Administration and Public Policy The University of Michigan School of Public Policy 411 Lorch Hall, 611 Tappan Street Ann Arbor, MI 48109-1220 - -------------------------------------------------------------------------------- SEC 1745 (3-98) Page 12 of 12