| 63.81.57.0 | — | — |
| 63.81.57.1 | ALTER.NET | — |
| 63.81.57.2 | customer.alter.net | — |
| 63.81.57.3 | — | — |
| 63.81.57.4 | — | — |
| 63.81.57.5 | 500.MFR299.GW8.DCA5.ALTER.NET | — |
| 63.81.57.6 | configuration-gw.customer.alter.net | — |
| 63.81.57.7 | — | — |
| 63.81.57.8 | — | — |
| 63.81.57.9 | 500.MFR60.GW5.TCO4.ALTER.NET | — |
| 63.81.57.10 | swisscom-gw-MLFR.customer.alter.net | — |
| 63.81.57.11 | — | — |
| 63.81.57.12 | — | — |
| 63.81.57.13 | 29.xe-5-0-4-3.ALTER.NET | — |
| 63.81.57.14 | Internet-gw.customer.alter.net | — |
| 63.81.57.15 | — | — |
| 63.81.57.16 | — | — |
| 63.81.57.17 | 211.xe-1-2-0.ALTER.NET | — |
| 63.81.57.18 | Internet-gw.customer.alter.net | — |
| 63.81.57.19 | — | — |
| 63.81.57.20 | — | — |
| 63.81.57.21 | 7.xe-10-2-1.GW10.EWR6.ALTER.NET | — |
| 63.81.57.22 | Internet-gw.customer.alter.net | — |
| 63.81.57.23 | — | — |
| 63.81.57.24 | — | — |
| 63.81.57.25 | 51.xe-1-0-1.GW12.HOU7.ALTER.NET | — |
| 63.81.57.26 | ALTER.NET.customer.alter.net | — |
| 63.81.57.27 | — | — |
| 63.81.57.28 | — | — |
| 63.81.57.29 | xe-10-3-0.ALTER.NET | — |
| 63.81.57.30 | verizon-gw.customer.alter.net | — |
| 63.81.57.31 | — | — |
| 63.81.57.32 | — | — |
| 63.81.57.33 | 58.xe-3-1-1.ALTER.NET | — |
| 63.81.57.34 | Internet-gw.customer.alter.net | — |
| 63.81.57.35 | — | — |
| 63.81.57.36 | — | — |
| 63.81.57.37 | 3.xe-7-1-0.ALTER.NET | — |
| 63.81.57.38 | iwisp-gw.customer.alter.net | — |
| 63.81.57.39 | — | — |
| 63.81.57.40 | — | — |
| 63.81.57.41 | 42.xe-1-0-4-2.GW9.KCY4.ALTER.NET | — |
| 63.81.57.42 | Internet-gw.customer.alter.net | — |
| 63.81.57.43 | — | — |
| 63.81.57.44 | — | — |
| 63.81.57.45 | 500.Serial5-10.GW1.RIC2.ALTER.NET | — |
| 63.81.57.46 | nettek-gw.customer.alter.net | — |
| 63.81.57.47 | — | — |
| 63.81.57.48 | — | — |
| 63.81.57.49 | 302.xe-1-1-0.ALTER.NET | — |
| 63.81.57.50 | verizon-gw.customer.alter.net | — |
| 63.81.57.51 | — | — |
| 63.81.57.52 | — | — |
| 63.81.57.53 | 80.xe-1-2-0.ALTER.NET | — |
| 63.81.57.54 | Internet-gw.customer.alter.net | — |
| 63.81.57.55 | — | — |
| 63.81.57.56 | — | — |
| 63.81.57.57 | 104.GigabitEthernet1-0.GW1.PHL16.ALTER.NET | — |
| 63.81.57.58 | vigilantfutures-gw.customer.alter.net | — |
| 63.81.57.59 | — | — |
| 63.81.57.60 | — | — |
| 63.81.57.61 | 2.xe-7-0-0.ALTER.NET | — |
| 63.81.57.62 | reedsmith-gw.customer.alter.net | — |
| 63.81.57.63 | — | — |
| 63.81.57.64 | — | — |
| 63.81.57.65 | POS4-3.GW2.RIC2.ALTER.NET | — |
| 63.81.57.66 | caponeglenallen-gw.customer.alter.net | — |
| 63.81.57.67 | — | — |
| 63.81.57.68 | — | — |
| 63.81.57.69 | 203.xe-1-0-2-3.GW14.PHL6.ALTER.NET | — |
| 63.81.57.70 | Internet-gw.customer.alter.net | — |
| 63.81.57.71 | — | — |
| 63.81.57.72 | — | — |
| 63.81.57.73 | PW-Ether254.ALTER.NET | — |
| 63.81.57.74 | Internet-gw.customer.alter.net | — |
| 63.81.57.75 | — | — |
| 63.81.57.76 | — | — |
| 63.81.57.77 | ALTER.NET | — |
| 63.81.57.78 | customer.alter.net | — |
| 63.81.57.79 | — | — |
| 63.81.57.80 | — | — |
| 63.81.57.81 | ALTER.NET | — |
| 63.81.57.82 | customer.alter.net | — |
| 63.81.57.83 | — | — |
| 63.81.57.84 | — | — |
| 63.81.57.85 | 131.xe-7-1-0.GW9.LAX7.ALTER.NET | — |
| 63.81.57.86 | Internet-gw.customer.alter.net | — |
| 63.81.57.87 | — | — |
| 63.81.57.88 | — | — |
| 63.81.57.89 | 304.ATM1-0.GW5.PHL1.ALTER.NET | — |
| 63.81.57.90 | iscmotorsports-gw.customer.alter.net | — |
| 63.81.57.91 | — | — |
| 63.81.57.92 | — | — |
| 63.81.57.93 | POS3-1.GW70.DCA6.ALTER.NET | — |
| 63.81.57.94 | BLTMMD-gw.customer.alter.net | — |
| 63.81.57.95 | — | — |
| 63.81.57.96 | — | — |
| 63.81.57.97 | POS3-3.GW7.DCA8.ALTER.NET | — |
| 63.81.57.98 | pbsalex-gw.customer.alter.net | — |
| 63.81.57.99 | — | — |
| 63.81.57.100 | — | — |
| 63.81.57.101 | 23.xe-1-0-5-2.GW14.PHL6.ALTER.NET | — |
| 63.81.57.102 | WAWA-INC.customer.alter.net | — |
| 63.81.57.103 | — | — |
| 63.81.57.104 | — | — |
| 63.81.57.105 | 215.ATM1-1.GW5.DCA6.ALTER.NET | — |
| 63.81.57.106 | ifsb-gw.customer.alter.net | — |
| 63.81.57.107 | — | — |
| 63.81.57.108 | — | — |
| 63.81.57.109 | 54.xe-3-0-1-2.GW9.DEN4.ALTER.NET | — |
| 63.81.57.110 | cvshealth-gw.customer.alter.net | — |
| 63.81.57.111 | — | — |
| 63.81.57.112 | — | — |
| 63.81.57.113 | 36.xe-1-3-0.GW11.PHL6.ALTER.NET | — |
| 63.81.57.114 | WS-MOMENTUMTELECOM.customer.alter.net | — |
| 63.81.57.115 | — | — |
| 63.81.57.116 | — | — |
| 63.81.57.117 | 410.xe-7-2-0.GW7.RIC2.ALTER.NET | — |
| 63.81.57.118 | ALLEGHANYWAREHOUSE.customer.alter.net | — |
| 63.81.57.119 | — | — |
| 63.81.57.120 | — | — |
| 63.81.57.121 | 26.xe-4-0-2-0.GW16.BOS4.ALTER.NET | — |
| 63.81.57.122 | Internet-gw.customer.alter.net | — |
| 63.81.57.123 | — | — |
| 63.81.57.124 | — | — |
| 63.81.57.125 | 500.MFR3.GW5.TCO4.ALTER.NET | — |
| 63.81.57.126 | mmrs-gw.customer.alter.net | — |
| 63.81.57.127 | — | — |
| 63.81.57.128 | — | — |
| 63.81.57.129 | 28.xe-5-3-1.GW1.PHIL.ALTER.NET | — |
| 63.81.57.130 | WS-NTEGRATEDCONSULTING-LLC.customer.alter.net | — |
| 63.81.57.131 | — | — |
| 63.81.57.132 | — | — |
| 63.81.57.133 | 221.ATM1-0.GW6.PHL1.ALTER.NET | — |
| 63.81.57.134 | mountainstate-gw.customer.alter.net | — |
| 63.81.57.135 | — | — |
| 63.81.57.136 | — | — |
| 63.81.57.137 | 63.xe-5-2-0.GW16.DFW9.ALTER.NET | — |
| 63.81.57.138 | Internet-gw.customer.alter.net | — |
| 63.81.57.139 | — | — |
| 63.81.57.140 | — | — |
| 63.81.57.141 | 500.xe-7-3-1.GW6.DCA5.ALTER.NET | — |
| 63.81.57.142 | SIGHT-SOUNDSYSTEMS-INC.customer.alter.net | — |
| 63.81.57.143 | — | — |
| 63.81.57.144 | — | — |
| 63.81.57.145 | 2.xe-1-0-5-2.GW14.PHL6.ALTER.NET | — |
| 63.81.57.146 | BANKOBEVERAGECO.customer.alter.net | — |
| 63.81.57.147 | — | — |
| 63.81.57.148 | — | — |
| 63.81.57.149 | 116.ATM1-0.GW1.DCA8.ALTER.NET | — |
| 63.81.57.150 | ccsvsat-gw.customer.alter.net | — |
| 63.81.57.151 | — | — |
| 63.81.57.152 | — | — |
| 63.81.57.153 | 0.xe-5-1-1.GW2.BOS30.ALTER.NET | — |
| 63.81.57.154 | mansfieldschools-gw.customer.alter.net | — |
| 63.81.57.155 | — | — |
| 63.81.57.156 | — | — |
| 63.81.57.157 | Serial4-0-11.GW4.NYC8.ALTER.NET | — |
| 63.81.57.158 | alisnet-gw.customer.alter.net | — |
| 63.81.57.159 | — | — |
| 63.81.57.160 | — | — |
| 63.81.57.161 | 124.xe-5-0-5-3.GW11.DCA5.ALTER.NET | — |
| 63.81.57.162 | UNIZOREALESTATEDCSIX-LLC.customer.alter.net | — |
| 63.81.57.163 | — | — |
| 63.81.57.164 | — | — |
| 63.81.57.165 | 85.ATM2-0.GW7.EWR1.ALTER.NET | — |
| 63.81.57.166 | luxuryresorts-gw.customer.alter.net | — |
| 63.81.57.167 | — | — |
| 63.81.57.168 | — | — |
| 63.81.57.169 | 194.TenGigE0-2-0-2.GW5.DCA5.ALTER.NET | — |
| 63.81.57.170 | IMPLANTDENTISTRYASSOCIATESOFVIRGINIA-P.C.customer.alter.net | — |
| 63.81.57.171 | — | — |
| 63.81.57.172 | — | — |
| 63.81.57.173 | ps122.ALTER.NET | — |
| 63.81.57.174 | Internet-gw.customer.alter.net | — |
| 63.81.57.175 | — | — |
| 63.81.57.176 | — | — |
| 63.81.57.177 | 37.xe-0-2-1.GW7.DCA6.ALTER.NET | — |
| 63.81.57.178 | IWISPLLC.customer.alter.net | — |
| 63.81.57.179 | — | — |
| 63.81.57.180 | — | — |
| 63.81.57.181 | 58.xe-3-1-0.GW6.DCA5.ALTER.NET | — |
| 63.81.57.182 | AUTHENTIC8-INC.customer.alter.net | — |
| 63.81.57.183 | — | — |
| 63.81.57.184 | — | — |
| 63.81.57.185 | 454.xe-4-2-0.GW11.PHL6.ALTER.NET | — |
| 63.81.57.186 | CAREFIRSTOFMARYLAND-INC.D-B-ACAREFIRSTBLUECROSSBLUESHIELD.customer.alter.net | — |
| 63.81.57.187 | — | — |
| 63.81.57.188 | — | — |
| 63.81.57.189 | 500.MFR1.GW5.GSO1.ALTER.NET | — |
| 63.81.57.190 | spirax-gw.customer.alter.net | — |
| 63.81.57.191 | — | — |
| 63.81.57.192 | — | — |
| 63.81.57.193 | 227.xe-1-1-0.GW12.PHL6.ALTER.NET | — |
| 63.81.57.194 | WAWA-INC.customer.alter.net | — |
| 63.81.57.195 | — | — |
| 63.81.57.196 | — | — |
| 63.81.57.197 | 879.ATM1-1.GW4.NYC9.ALTER.NET | — |
| 63.81.57.198 | pacificsunwear-gw.customer.alter.net | — |
| 63.81.57.199 | — | — |
| 63.81.57.200 | — | — |
| 63.81.57.201 | 28.xe-5-0-1-0.GW11.DCA5.ALTER.NET | — |
| 63.81.57.202 | COMPUTERWARE-INC.customer.alter.net | — |
| 63.81.57.203 | — | — |
| 63.81.57.204 | — | — |
| 63.81.57.205 | 830.xe-5-1-0-2.GW11.DCA5.ALTER.NET | — |
| 63.81.57.206 | CorporateBroadbandServices.customer.alter.net | — |
| 63.81.57.207 | — | — |
| 63.81.57.208 | — | — |
| 63.81.57.209 | 500.Serial3-2-1.GW8.DCA5.ALTER.NET | — |
| 63.81.57.210 | celera.com-gw.customer.alter.net | — |
| 63.81.57.211 | — | — |
| 63.81.57.212 | — | — |
| 63.81.57.213 | 246.TenGigE0-2-0-10.GW5.DCA5.ALTER.NET | — |
| 63.81.57.214 | VERIZONDATASERVICESINC.customer.alter.net | — |
| 63.81.57.215 | — | — |
| 63.81.57.216 | — | — |
| 63.81.57.217 | Serial1-3-5.GW2.TCO4.ALTER.NET | — |
| 63.81.57.218 | dot-gw.customer.alter.net | — |
| 63.81.57.219 | — | — |
| 63.81.57.220 | — | — |
| 63.81.57.221 | 113.xe-5-1-5-0.GW6.DCA5.ALTER.NET | — |
| 63.81.57.222 | Internet-gw.customer.alter.net | — |
| 63.81.57.223 | — | — |
| 63.81.57.224 | — | — |
| 63.81.57.225 | ALTER.NET | — |
| 63.81.57.226 | customer.alter.net | — |
| 63.81.57.227 | — | — |
| 63.81.57.228 | — | — |
| 63.81.57.229 | 177.xe-4-2-0.GW11.PHL6.ALTER.NET | — |
| 63.81.57.230 | SIGMA-ALDRICHCORPORATION.customer.alter.net | — |
| 63.81.57.231 | — | — |
| 63.81.57.232 | — | — |
| 63.81.57.233 | 364.ATM1-0.GW3.DCA1.ALTER.NET | — |
| 63.81.57.234 | nasmhpd-gw.customer.alter.net | — |
| 63.81.57.235 | — | — |
| 63.81.57.236 | — | — |
| 63.81.57.237 | 95.xe-1-3-0.GW1.RIC3.ALTER.NET | — |
| 63.81.57.238 | MSTHOSPITALITYLLC.customer.alter.net | — |
| 63.81.57.239 | — | — |
| 63.81.57.240 | — | — |
| 63.81.57.241 | 20.xe-7-2-1.GW6.DCA5.ALTER.NET | — |
| 63.81.57.242 | AIRLIQUIDEUSALLC.customer.alter.net | — |
| 63.81.57.243 | — | — |
| 63.81.57.244 | — | — |
| 63.81.57.245 | 65.xe-4-3-1.GW14.PHL6.ALTER.NET | — |
| 63.81.57.246 | Internet-gw.customer.alter.net | — |
| 63.81.57.247 | — | — |
| 63.81.57.248 | — | — |
| 63.81.57.249 | 46.xe-1-1-0.GW12.PHL6.ALTER.NET | — |
| 63.81.57.250 | FISERV-INC.customer.alter.net | — |
| 63.81.57.251 | — | — |
| 63.81.57.252 | — | — |
| 63.81.57.253 | 55.xe-2-3-1.GW14.PHL6.ALTER.NET | — |
| 63.81.57.254 | Internet-gw.customer.alter.net | — |
| 63.81.57.255 | — | — |