X0202 4 2006-05-26 1 0001272830 VONAGE HOLDINGS CORP VG 0001119133 MERITECH CAPITAL PARTNERS II LP 285 HAMILTON AVE, SUITE 200 PALO ALTO CA 94301 0 0 1 0 0001255154 MERITECH CAPITAL AFFILIATES II LP 285 HAMILTON AVE, SUITE 200 PALO ALTO CA 94301 0 0 1 0 0001130610 MCP ENTREPRENEUR PARTNERS II LP 285 HAMILTON AVE, SUITE 200 PALO ALTO CA 94301 0 0 1 0 0001255151 MADERA PAUL S 285 HAMILTON AVE, SUITE 200 PALO ALTO CA 94301 0 0 1 0 0001255152 GORDON MICHAEL B 285 HAMILTON AVE, SUITE 200 PALO ALTO CA 94301 0 0 1 0 0001299073 Meritech Capital Associates II L.L.C. 285 HAMILTON AVE., STE. 200 PALO ALTO CA 94301 0 0 1 0 0001299074 Meritech Management Associates II L.L.C. 285 HAMILTON AVE., STE. 200 PALO ALTO CA 94301 0 0 1 0 Common Stock 2006-05-26 4 C 0 6635657 A 6635657 D Common Stock 2006-05-26 4 C 0 4597368 A 11233025 D Common Stock 2006-05-26 4 C 0 2478311 A 13711336 D Common Stock 2006-05-26 4 C 0 170742 A 170742 D Common Stock 2006-05-26 4 C 0 118294 A 289036 D Common Stock 2006-05-26 4 C 0 63768 A 352804 D Common Stock 2006-05-26 4 C 0 50742 A 50742 D Common Stock 2006-05-26 4 C 0 35157 A 85899 D Common Stock 2006-05-26 4 C 0 18951 A 104850 D Series C Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 2322480 0 D Common Stock 6635657 0 D Series D Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 1609079 0 D Common Stock 4597368 0 D Series E Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 867409 0 D Common Stock 2478311 0 D Series C Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 59760 0 D Common Stock 170742 0 D Series D Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 41403 0 D Common Stock 118294 0 D Series E Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 22319 0 D Common Stock 63768 0 D Series C Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 17760 0 D Common Stock 50742 0 D Series D Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 12305 0 D Common Stock 35157 0 D Series E Redeemable Convertible Preferred Stock 2006-05-26 4 C 0 6633 0 D Common Stock 18951 0 D The convertible preferred stock automatically converted to Common Stock on a 1:2.86 basis at the closing of the offering and had no expiration date. Shares are held by Meritech Capital Partners II L.P. ("MCP II"). Meritech Management Associates II L.L.C., a managing member of Meritech Capital Associates II L.L.C., the general partner of MCP II, and Paul S. Madera and Michael B. Gordon, the managing members of Meritech Management Associates II L.L.C., may be deemed to share voting and dispositive power over the shares held by MCP II. Such persons and entities disclaim beneficial ownership of shares held by MCP II except to the extent of any pecuniary interest therein. Shares are held by Meritech Capital Affiliates II L.P. ("MCA II"). Meritech Management Associates II L.L.C., a managing member of Meritech Capital Associates II L.L.C., the general partner of MCA II, and Paul S. Madera and Michael B. Gordon, the managing members of Meritech Management Associates II L.L.C., may be deemed to share voting and dispositive power over the shares held by MCA II. Such persons and entities disclaim beneficial ownership of shares held by MCP II except to the extent of any pecuniary interest therein. Shares are held by MCP Entrepreneur Partners II L.P. ("Entrepreneur"). Meritech Management Associates II L.L.C., a managing member of Meritech Capital Associates II L.L.C., the general partner of Entrepreneur , and Paul S. Madera and Michael B. Gordon, the managing members of Meritech Management Associates II L.L.C., may be deemed to share voting and dispositive power over the shares held by Entrepreneur. Such persons and entities disclaim beneficial ownership of shares held by Entrepreneur except to the extent of any pecuniary interest therein. /s/ Paul S. Madera 2006-05-30 /s/ Michael B. Gordon 2006-05-30