1. MEGAMODEM

Serial Number: 76377995
Owner: (REGISTRANT) RCN TELECOM SERVICES, INC. CORPORATION PENNSYLVANIA 196 Van Buren Street Suite 300 Herndon VIRGINIA 20170
Filed on: 03/01/2002

2. MEGAMODEM MACH 3

Serial Number: 78847613
Owner: (REGISTRANT) RCN TELECOM SERVICES, INC. CORPORATION PENNSYLVANIA 196 Van Buren Street Suite 300 Herndon VIRGINIA 20170

(LAST LISTED OWNER) RCN TELECOM SERVICES, LLC LIMITED LIABILITY COMPANY DELAWARE 196 VAN BUREN STREET SUITE 300 HERNDON VIRGINIA 20170

Filed on: 03/28/2006

3. MEGAMODEM MACH 5

Serial Number: 78847620
Owner: (REGISTRANT) RCN TELECOM SERVICES, INC. CORPORATION PENNSYLVANIA 196 Van Buren Street Suite 300 Herndon VIRGINIA 20170

(LAST LISTED OWNER) RCN TELECOM SERVICES, LLC LIMITED LIABILITY COMPANY DELAWARE 196 VAN BUREN STREET SUITE 300 HERNDON VIRGINIA 20170

Filed on: 03/28/2006

4. RCN 4

Serial Number: 78824153
Owner: (REGISTRANT) RCN TELECOM SERVICES, INC. CORPORATION PENNSYLVANIA 196 Van Buren Street Suite 300 Herndon VIRGINIA 20170

(LAST LISTED OWNER) RCN TELECOM SERVICES, LLC LIMITED LIABILITY COMPANY DELAWARE 196 VAN BUREN STREET SUITE 300 HERNDON VIRGINIA 20170

Filed on: 02/27/2006

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