The IP address 128.2.31 is provided by Carnegie Mellon University, it's belong to the CDIR (Classless Inter-Domain Routing) 128.2.0.0/16 (range 128.2.0.0 to 128.2.255.255). The autonomous system number (ASN) is 9.
| ASN | 9 |
| IP starting by | 128.2.0.0 |
| IP ending by | 128.2.255.255 |
| ASN Name | Carnegie Mellon University |
| CDIR | 128.2.0.0/16 |
| Numerical IP | |
| Registry | arin |
| Last update | 19/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Bloomfield | 40.4609 | -79.9509 | 2017-07-19 |
| MaxMind | US | United States | - | Pittsburgh | 40.4439 | -79.9561 | 2017-07-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 128.2.31.0 | 2147622656 | 0 |
| 128.2.31.1 | 2147622657 | 0 |
| 128.2.31.2 | 2147622658 | 0 |
| 128.2.31.3 | 2147622659 | 0 |
| 128.2.31.4 | 2147622660 | 0 |
| 128.2.31.5 | 2147622661 | 0 |
| 128.2.31.6 | 2147622662 | 0 |
| 128.2.31.7 | 2147622663 | 0 |
| 128.2.31.8 | 2147622664 | 0 |
| 128.2.31.9 | 2147622665 | 0 |
| 128.2.31.10 | 2147622666 | 0 |
| 128.2.31.11 | 2147622667 | 0 |
| 128.2.31.12 | 2147622668 | 0 |
| 128.2.31.13 | 2147622669 | 0 |
| 128.2.31.14 | 2147622670 | 0 |
| 128.2.31.15 | 2147622671 | 0 |
| 128.2.31.16 | 2147622672 | 0 |
| 128.2.31.17 | 2147622673 | 0 |
| 128.2.31.18 | 2147622674 | 0 |
| 128.2.31.19 | 2147622675 | 0 |
| 128.2.31.20 | 2147622676 | 0 |
| 128.2.31.21 | 2147622677 | 0 |
| 128.2.31.22 | 2147622678 | 0 |
| 128.2.31.23 | 2147622679 | 0 |
| 128.2.31.24 | 2147622680 | 0 |
| 128.2.31.25 | 2147622681 | 0 |
| 128.2.31.26 | 2147622682 | 0 |
| 128.2.31.27 | 2147622683 | 0 |
| 128.2.31.28 | 2147622684 | 0 |
| 128.2.31.29 | 2147622685 | 0 |
| 128.2.31.30 | 2147622686 | 0 |
| 128.2.31.31 | 2147622687 | 0 |
| 128.2.31.32 | 2147622688 | 0 |
| 128.2.31.33 | 2147622689 | 0 |
| 128.2.31.34 | 2147622690 | 0 |
| 128.2.31.35 | 2147622691 | 0 |
| 128.2.31.36 | 2147622692 | 0 |
| 128.2.31.37 | 2147622693 | 0 |
| 128.2.31.38 | 2147622694 | 0 |
| 128.2.31.39 | 2147622695 | 0 |
| 128.2.31.40 | 2147622696 | 0 |
| 128.2.31.41 | 2147622697 | 0 |
| 128.2.31.42 | 2147622698 | 0 |
| 128.2.31.43 | 2147622699 | 0 |
| 128.2.31.44 | 2147622700 | 0 |
| 128.2.31.45 | 2147622701 | 0 |
| 128.2.31.46 | 2147622702 | 0 |
| 128.2.31.47 | 2147622703 | 0 |
| 128.2.31.48 | 2147622704 | 0 |
| 128.2.31.49 | 2147622705 | 0 |
| 128.2.31.50 | 2147622706 | 0 |
| 128.2.31.51 | 2147622707 | 0 |
| 128.2.31.52 | 2147622708 | 0 |
| 128.2.31.53 | 2147622709 | 0 |
| 128.2.31.54 | 2147622710 | 0 |
| 128.2.31.55 | 2147622711 | 0 |
| 128.2.31.56 | 2147622712 | 0 |
| 128.2.31.57 | 2147622713 | 0 |
| 128.2.31.58 | 2147622714 | 0 |
| 128.2.31.59 | 2147622715 | 0 |
| 128.2.31.60 | 2147622716 | 0 |
| 128.2.31.61 | 2147622717 | 0 |
| 128.2.31.62 | 2147622718 | 0 |
| 128.2.31.63 | 2147622719 | 0 |
| 128.2.31.64 | 2147622720 | 0 |
| 128.2.31.65 | 2147622721 | 0 |
| 128.2.31.66 | 2147622722 | 0 |
| 128.2.31.67 | 2147622723 | 0 |
| 128.2.31.68 | 2147622724 | 0 |
| 128.2.31.69 | 2147622725 | 0 |
| 128.2.31.70 | 2147622726 | 0 |
| 128.2.31.71 | 2147622727 | 0 |
| 128.2.31.72 | 2147622728 | 0 |
| 128.2.31.73 | 2147622729 | 0 |
| 128.2.31.74 | 2147622730 | 0 |
| 128.2.31.75 | 2147622731 | 0 |
| 128.2.31.76 | 2147622732 | 0 |
| 128.2.31.77 | 2147622733 | 0 |
| 128.2.31.78 | 2147622734 | 0 |
| 128.2.31.79 | 2147622735 | 0 |
| 128.2.31.80 | 2147622736 | 0 |
| 128.2.31.81 | 2147622737 | 0 |
| 128.2.31.82 | 2147622738 | 0 |
| 128.2.31.83 | 2147622739 | 0 |
| 128.2.31.84 | 2147622740 | 0 |
| 128.2.31.85 | 2147622741 | 0 |
| IP | Numerical IP | DNS |
| 128.2.31.86 | 2147622742 | 0 |
| 128.2.31.87 | 2147622743 | 0 |
| 128.2.31.88 | 2147622744 | 0 |
| 128.2.31.89 | 2147622745 | 0 |
| 128.2.31.90 | 2147622746 | 0 |
| 128.2.31.91 | 2147622747 | 0 |
| 128.2.31.92 | 2147622748 | 0 |
| 128.2.31.93 | 2147622749 | 0 |
| 128.2.31.94 | 2147622750 | 0 |
| 128.2.31.95 | 2147622751 | 0 |
| 128.2.31.96 | 2147622752 | 0 |
| 128.2.31.97 | 2147622753 | 0 |
| 128.2.31.98 | 2147622754 | 0 |
| 128.2.31.99 | 2147622755 | 0 |
| 128.2.31.100 | 2147622756 | 0 |
| 128.2.31.101 | 2147622757 | 0 |
| 128.2.31.102 | 2147622758 | 0 |
| 128.2.31.103 | 2147622759 | 0 |
| 128.2.31.104 | 2147622760 | 0 |
| 128.2.31.105 | 2147622761 | 0 |
| 128.2.31.106 | 2147622762 | 0 |
| 128.2.31.107 | 2147622763 | 0 |
| 128.2.31.108 | 2147622764 | 0 |
| 128.2.31.109 | 2147622765 | 0 |
| 128.2.31.110 | 2147622766 | 0 |
| 128.2.31.111 | 2147622767 | 0 |
| 128.2.31.112 | 2147622768 | 0 |
| 128.2.31.113 | 2147622769 | 0 |
| 128.2.31.114 | 2147622770 | 0 |
| 128.2.31.115 | 2147622771 | 0 |
| 128.2.31.116 | 2147622772 | 0 |
| 128.2.31.117 | 2147622773 | 0 |
| 128.2.31.118 | 2147622774 | 0 |
| 128.2.31.119 | 2147622775 | 0 |
| 128.2.31.120 | 2147622776 | 0 |
| 128.2.31.121 | 2147622777 | 0 |
| 128.2.31.122 | 2147622778 | 0 |
| 128.2.31.123 | 2147622779 | 0 |
| 128.2.31.124 | 2147622780 | 0 |
| 128.2.31.125 | 2147622781 | 0 |
| 128.2.31.126 | 2147622782 | 0 |
| 128.2.31.127 | 2147622783 | 0 |
| 128.2.31.128 | 2147622784 | 0 |
| 128.2.31.129 | 2147622785 | 0 |
| 128.2.31.130 | 2147622786 | 0 |
| 128.2.31.131 | 2147622787 | 0 |
| 128.2.31.132 | 2147622788 | 0 |
| 128.2.31.133 | 2147622789 | 0 |
| 128.2.31.134 | 2147622790 | 0 |
| 128.2.31.135 | 2147622791 | 0 |
| 128.2.31.136 | 2147622792 | 0 |
| 128.2.31.137 | 2147622793 | 0 |
| 128.2.31.138 | 2147622794 | 0 |
| 128.2.31.139 | 2147622795 | 0 |
| 128.2.31.140 | 2147622796 | 0 |
| 128.2.31.141 | 2147622797 | 0 |
| 128.2.31.142 | 2147622798 | 0 |
| 128.2.31.143 | 2147622799 | 0 |
| 128.2.31.144 | 2147622800 | 0 |
| 128.2.31.145 | 2147622801 | 0 |
| 128.2.31.146 | 2147622802 | 0 |
| 128.2.31.147 | 2147622803 | 0 |
| 128.2.31.148 | 2147622804 | 0 |
| 128.2.31.149 | 2147622805 | 0 |
| 128.2.31.150 | 2147622806 | 0 |
| 128.2.31.151 | 2147622807 | 0 |
| 128.2.31.152 | 2147622808 | 0 |
| 128.2.31.153 | 2147622809 | 0 |
| 128.2.31.154 | 2147622810 | 0 |
| 128.2.31.155 | 2147622811 | 0 |
| 128.2.31.156 | 2147622812 | 0 |
| 128.2.31.157 | 2147622813 | 0 |
| 128.2.31.158 | 2147622814 | 0 |
| 128.2.31.159 | 2147622815 | 0 |
| 128.2.31.160 | 2147622816 | 0 |
| 128.2.31.161 | 2147622817 | 0 |
| 128.2.31.162 | 2147622818 | 0 |
| 128.2.31.163 | 2147622819 | 0 |
| 128.2.31.164 | 2147622820 | 0 |
| 128.2.31.165 | 2147622821 | 0 |
| 128.2.31.166 | 2147622822 | 0 |
| 128.2.31.167 | 2147622823 | 0 |
| 128.2.31.168 | 2147622824 | 0 |
| 128.2.31.169 | 2147622825 | 0 |
| 128.2.31.170 | 2147622826 | 0 |
| 128.2.31.171 | 2147622827 | 0 |
| IP | Numerical IP | DNS |
| 128.2.31.172 | 2147622828 | 0 |
| 128.2.31.173 | 2147622829 | 0 |
| 128.2.31.174 | 2147622830 | 0 |
| 128.2.31.175 | 2147622831 | 0 |
| 128.2.31.176 | 2147622832 | 0 |
| 128.2.31.177 | 2147622833 | 0 |
| 128.2.31.178 | 2147622834 | 0 |
| 128.2.31.179 | 2147622835 | 0 |
| 128.2.31.180 | 2147622836 | 0 |
| 128.2.31.181 | 2147622837 | 0 |
| 128.2.31.182 | 2147622838 | 0 |
| 128.2.31.183 | 2147622839 | 0 |
| 128.2.31.184 | 2147622840 | 0 |
| 128.2.31.185 | 2147622841 | 0 |
| 128.2.31.186 | 2147622842 | 0 |
| 128.2.31.187 | 2147622843 | 0 |
| 128.2.31.188 | 2147622844 | 0 |
| 128.2.31.189 | 2147622845 | 0 |
| 128.2.31.190 | 2147622846 | 0 |
| 128.2.31.191 | 2147622847 | 0 |
| 128.2.31.192 | 2147622848 | 0 |
| 128.2.31.193 | 2147622849 | 0 |
| 128.2.31.194 | 2147622850 | 0 |
| 128.2.31.195 | 2147622851 | 0 |
| 128.2.31.196 | 2147622852 | 0 |
| 128.2.31.197 | 2147622853 | 0 |
| 128.2.31.198 | 2147622854 | 0 |
| 128.2.31.199 | 2147622855 | 0 |
| 128.2.31.200 | 2147622856 | 0 |
| 128.2.31.201 | 2147622857 | 0 |
| 128.2.31.202 | 2147622858 | 0 |
| 128.2.31.203 | 2147622859 | 0 |
| 128.2.31.204 | 2147622860 | 0 |
| 128.2.31.205 | 2147622861 | 0 |
| 128.2.31.206 | 2147622862 | 0 |
| 128.2.31.207 | 2147622863 | 0 |
| 128.2.31.208 | 2147622864 | 0 |
| 128.2.31.209 | 2147622865 | 0 |
| 128.2.31.210 | 2147622866 | 0 |
| 128.2.31.211 | 2147622867 | 0 |
| 128.2.31.212 | 2147622868 | 0 |
| 128.2.31.213 | 2147622869 | 0 |
| 128.2.31.214 | 2147622870 | 0 |
| 128.2.31.215 | 2147622871 | 0 |
| 128.2.31.216 | 2147622872 | 0 |
| 128.2.31.217 | 2147622873 | 0 |
| 128.2.31.218 | 2147622874 | 0 |
| 128.2.31.219 | 2147622875 | 0 |
| 128.2.31.220 | 2147622876 | 0 |
| 128.2.31.221 | 2147622877 | 0 |
| 128.2.31.222 | 2147622878 | 0 |
| 128.2.31.223 | 2147622879 | 0 |
| 128.2.31.224 | 2147622880 | 0 |
| 128.2.31.225 | 2147622881 | 0 |
| 128.2.31.226 | 2147622882 | 0 |
| 128.2.31.227 | 2147622883 | 0 |
| 128.2.31.228 | 2147622884 | 0 |
| 128.2.31.229 | 2147622885 | 0 |
| 128.2.31.230 | 2147622886 | 0 |
| 128.2.31.231 | 2147622887 | 0 |
| 128.2.31.232 | 2147622888 | 0 |
| 128.2.31.233 | 2147622889 | 0 |
| 128.2.31.234 | 2147622890 | 0 |
| 128.2.31.235 | 2147622891 | 0 |
| 128.2.31.236 | 2147622892 | 0 |
| 128.2.31.237 | 2147622893 | 0 |
| 128.2.31.238 | 2147622894 | 0 |
| 128.2.31.239 | 2147622895 | 0 |
| 128.2.31.240 | 2147622896 | 0 |
| 128.2.31.241 | 2147622897 | 0 |
| 128.2.31.242 | 2147622898 | 0 |
| 128.2.31.243 | 2147622899 | 0 |
| 128.2.31.244 | 2147622900 | 0 |
| 128.2.31.245 | 2147622901 | 0 |
| 128.2.31.246 | 2147622902 | 0 |
| 128.2.31.247 | 2147622903 | 0 |
| 128.2.31.248 | 2147622904 | 0 |
| 128.2.31.249 | 2147622905 | 0 |
| 128.2.31.250 | 2147622906 | 0 |
| 128.2.31.251 | 2147622907 | 0 |
| 128.2.31.252 | 2147622908 | 0 |
| 128.2.31.253 | 2147622909 | 0 |
| 128.2.31.254 | 2147622910 | 0 |
| 128.2.31.255 | 2147622911 | 0 |