Summary
| ASN | AS104 University of Colorado at Boulder |
| BGP | 128.138.0.0/16 |
| IPs with RDNS | 172 |
| Hosted Domains | 0 |
| Pingable IPs | 0 |
| Router IPs | 0 |
| 128.138.120.0 | — | 0 |  | |
| 128.138.120.1 | engr-gw-ecch.colorado.edu | 0 | | |
| 128.138.120.2 | — | 0 | | |
| 128.138.120.3 | — | 0 | | |
| 128.138.120.4 | — | 0 | | |
| 128.138.120.5 | rnoble.colorado.edu | 0 | | |
| 128.138.120.6 | hauschulgx.colorado.edu | 0 | | |
| 128.138.120.7 | tetra.colorado.edu | 0 | | |
| 128.138.120.8 | davisgroup.colorado.edu | 0 | | |
| 128.138.120.9 | ecch120-9.colorado.edu | 0 | | |
| 128.138.120.10 | dlc120-10.colorado.edu | 0 | | |
| 128.138.120.11 | gray-cat.colorado.edu | 0 | | |
| 128.138.120.12 | eces120-12.colorado.edu | 0 | | |
| 128.138.120.13 | quivive.colorado.edu | 0 | | |
| 128.138.120.14 | paul.colorado.edu | 0 | | |
| 128.138.120.15 | hrenyaprinter.colorado.edu | 0 | | |
| 128.138.120.16 | ecch120-16.colorado.edu | 0 | | |
| 128.138.120.17 | ecch120-17.colorado.edu | 0 | | |
| 128.138.120.18 | dlc120-18.colorado.edu | 0 | | |
| 128.138.120.19 | eces120-19.colorado.edu | 0 | | |
| 128.138.120.20 | carbon.colorado.edu | 0 | | |
| 128.138.120.21 | ecch120-21.colorado.edu | 0 | | |
| 128.138.120.22 | ecch120-22.colorado.edu | 0 | | |
| 128.138.120.23 | ecch120-23.colorado.edu | 0 | | |
| 128.138.120.24 | ecme120-24.colorado.edu | 0 | | |
| 128.138.120.25 | medlin1.colorado.edu | 0 | | |
| 128.138.120.26 | cuchbe30.colorado.edu | 0 | | |
| 128.138.120.27 | logusin.colorado.edu | 0 | | |
| 128.138.120.28 | c2b2-hp4700.colorado.edu | 0 | | |
| 128.138.120.29 | ecch120-29.colorado.edu | 0 | | |
| 128.138.120.30 | langmuir-printer.colorado.edu | 0 | | |
| 128.138.120.31 | pressure3.colorado.edu | 0 | | |
| 128.138.120.32 | ecch120-32.colorado.edu | 0 | | |
| 128.138.120.33 | ecch120-33.colorado.edu | 0 | | |
| 128.138.120.34 | solder.colorado.edu | 0 | | |
| 128.138.120.35 | mcen-xerox-003.colorado.edu | 0 | | |
| 128.138.120.36 | ecch120-36.colorado.edu | 0 | | |
| 128.138.120.37 | wolfpack.colorado.edu | 0 | | |
| 128.138.120.38 | ecch120-38.colorado.edu | 0 | | |
| 128.138.120.39 | mandolin.colorado.edu | 0 | | |
| 128.138.120.40 | ecch120-40.colorado.edu | 0 | | |
| 128.138.120.41 | cuchbe2.colorado.edu | 0 | | |
| 128.138.120.42 | cu-eces-120-42.colorado.edu | 0 | | |
| 128.138.120.43 | cuchbe3.colorado.edu | 0 | | |
| 128.138.120.44 | ecch44.colorado.edu | 0 | | |
| 128.138.120.45 | chehp4550.colorado.edu | 0 | | |
| 128.138.120.46 | martin-gx520.colorado.edu | 0 | | |
| 128.138.120.47 | cu-cheme-120-47.colorado.edu | 0 | | |
| 128.138.120.48 | nitrogen.colorado.edu | 0 | | |
| 128.138.120.49 | rolfgpu.colorado.edu | 0 | | |
| 128.138.120.50 | oxygen.colorado.edu | 0 | | |
| 128.138.120.51 | ecch120-51.colorado.edu | 0 | | |
| 128.138.120.52 | — | 0 | | |
| 128.138.120.53 | — | 0 | | |
| 128.138.120.54 | — | 0 | | |
| 128.138.120.55 | — | 0 | | |
| 128.138.120.56 | — | 0 | | |
| 128.138.120.57 | — | 0 | | |
| 128.138.120.58 | — | 0 | | |
| 128.138.120.59 | — | 0 | | |
| 128.138.120.60 | — | 0 | | |
| 128.138.120.61 | — | 0 | | |
| 128.138.120.62 | — | 0 | | |
| 128.138.120.63 | — | 0 | | |
| 128.138.120.64 | — | 0 | | |
| 128.138.120.65 | — | 0 | | |
| 128.138.120.66 | — | 0 | | |
| 128.138.120.67 | — | 0 | | |
| 128.138.120.68 | — | 0 | | |
| 128.138.120.69 | — | 0 | | |
| 128.138.120.70 | — | 0 | | |
| 128.138.120.71 | — | 0 | | |
| 128.138.120.72 | — | 0 | | |
| 128.138.120.73 | — | 0 | | |
| 128.138.120.74 | — | 0 | | |
| 128.138.120.75 | — | 0 | | |
| 128.138.120.76 | — | 0 | | |
| 128.138.120.77 | — | 0 | | |
| 128.138.120.78 | — | 0 | | |
| 128.138.120.79 | — | 0 | | |
| 128.138.120.80 | — | 0 | | |
| 128.138.120.81 | — | 0 | | |
| 128.138.120.82 | — | 0 | | |
| 128.138.120.83 | chan-gx755.colorado.edu | 0 | | |
| 128.138.120.84 | fluorine.colorado.edu | 0 | | |
| 128.138.120.85 | c2b2-mscrm.colorado.edu | 0 | | |
| 128.138.120.86 | ecch120-86.colorado.edu | 0 | | |
| 128.138.120.87 | mastcn3000.colorado.edu | 0 | | |
| 128.138.120.88 | — | 0 | | |
| 128.138.120.89 | — | 0 | | |
| 128.138.120.90 | cloughecch126.colorado.edu | 0 | | |
| 128.138.120.91 | — | 0 | | |
| 128.138.120.92 | — | 0 | | |
| 128.138.120.93 | — | 0 | | |
| 128.138.120.94 | — | 0 | | |
| 128.138.120.95 | — | 0 | | |
| 128.138.120.96 | — | 0 | | |
| 128.138.120.97 | — | 0 | | |
| 128.138.120.98 | — | 0 | | |
| 128.138.120.99 | — | 0 | | |
| 128.138.120.100 | jalopy.colorado.edu | 0 | | |
| 128.138.120.101 | — | 0 | | |
| 128.138.120.102 | — | 0 | | |
| 128.138.120.103 | — | 0 | | |
| 128.138.120.104 | — | 0 | | |
| 128.138.120.105 | — | 0 | | |
| 128.138.120.106 | — | 0 | | |
| 128.138.120.107 | — | 0 | | |
| 128.138.120.108 | — | 0 | | |
| 128.138.120.109 | — | 0 | | |
| 128.138.120.110 | — | 0 | | |
| 128.138.120.111 | — | 0 | | |
| 128.138.120.112 | — | 0 | | |
| 128.138.120.113 | — | 0 | | |
| 128.138.120.114 | — | 0 | | |
| 128.138.120.115 | — | 0 | | |
| 128.138.120.116 | — | 0 | | |
| 128.138.120.117 | — | 0 | | |
| 128.138.120.118 | — | 0 | | |
| 128.138.120.119 | — | 0 | | |
| 128.138.120.120 | — | 0 | | |
| 128.138.120.121 | mast-km.colorado.edu | 0 | | |
| 128.138.120.122 | — | 0 | | |
| 128.138.120.123 | — | 0 | | |
| 128.138.120.124 | — | 0 | | |
| 128.138.120.125 | — | 0 | | |
| 128.138.120.126 | — | 0 | | |
| 128.138.120.127 | — | 0 | | |
| 128.138.120.128 | — | 0 | | |
| 128.138.120.129 | — | 0 | | |
| 128.138.120.130 | — | 0 | | |
| 128.138.120.131 | spruce.colorado.edu | 0 | | |
| 128.138.120.132 | — | 0 | | |
| 128.138.120.133 | — | 0 | | |
| 128.138.120.134 | — | 0 | | |
| 128.138.120.135 | — | 0 | | |
| 128.138.120.136 | — | 0 | | |
| 128.138.120.137 | — | 0 | | |
| 128.138.120.138 | — | 0 | | |
| 128.138.120.139 | — | 0 | | |
| 128.138.120.140 | cu-cheme-128.138.120.140.colorado.edu | 0 | | |
| 128.138.120.141 | cu-cheme-128.138.120.141.colorado.edu | 0 | | |
| 128.138.120.142 | cu-cheme-128.138.120.142.colorado.edu | 0 | | |
| 128.138.120.143 | cu-cheme-128.138.120.143.colorado.edu | 0 | | |
| 128.138.120.144 | cu-cheme-128.138.120.144.colorado.edu | 0 | | |
| 128.138.120.145 | cu-cheme-128.138.120.145.colorado.edu | 0 | | |
| 128.138.120.146 | cu-cheme-128.138.120.146.colorado.edu | 0 | | |
| 128.138.120.147 | cu-cheme-128.138.120.147.colorado.edu | 0 | | |
| 128.138.120.148 | cu-cheme-128.138.120.148.colorado.edu | 0 | | |
| 128.138.120.149 | cu-cheme-128.138.120.149.colorado.edu | 0 | | |
| 128.138.120.150 | cu-cheme-128.138.120.150.colorado.edu | 0 | | |
| 128.138.120.151 | cu-cheme-128.138.120.151.colorado.edu | 0 | | |
| 128.138.120.152 | cu-cheme-128.138.120.152.colorado.edu | 0 | | |
| 128.138.120.153 | cu-cheme-128.138.120.153.colorado.edu | 0 | | |
| 128.138.120.154 | cu-cheme-128.138.120.154.colorado.edu | 0 | | |
| 128.138.120.155 | cu-cheme-128.138.120.155.colorado.edu | 0 | | |
| 128.138.120.156 | cu-cheme-128.138.120.156.colorado.edu | 0 | | |
| 128.138.120.157 | cu-cheme-128.138.120.157.colorado.edu | 0 | | |
| 128.138.120.158 | cu-cheme-128.138.120.158.colorado.edu | 0 | | |
| 128.138.120.159 | cu-cheme-128.138.120.159.colorado.edu | 0 | | |
| 128.138.120.160 | cu-cheme-128.138.120.160.colorado.edu | 0 | | |
| 128.138.120.161 | cu-cheme-128.138.120.161.colorado.edu | 0 | | |
| 128.138.120.162 | cu-cheme-128.138.120.162.colorado.edu | 0 | | |
| 128.138.120.163 | cu-cheme-128.138.120.163.colorado.edu | 0 | | |
| 128.138.120.164 | cu-cheme-128.138.120.164.colorado.edu | 0 | | |
| 128.138.120.165 | cu-cheme-128.138.120.165.colorado.edu | 0 | | |
| 128.138.120.166 | cu-cheme-128.138.120.166.colorado.edu | 0 | | |
| 128.138.120.167 | cu-cheme-128.138.120.167.colorado.edu | 0 | | |
| 128.138.120.168 | cu-cheme-128.138.120.168.colorado.edu | 0 | | |
| 128.138.120.169 | cu-cheme-128.138.120.169.colorado.edu | 0 | | |
| 128.138.120.170 | cu-cheme-128.138.120.170.colorado.edu | 0 | | |
| 128.138.120.171 | cu-cheme-128.138.120.171.colorado.edu | 0 | | |
| 128.138.120.172 | cu-cheme-128.138.120.172.colorado.edu | 0 | | |
| 128.138.120.173 | cu-cheme-128.138.120.173.colorado.edu | 0 | | |
| 128.138.120.174 | cu-cheme-128.138.120.174.colorado.edu | 0 | | |
| 128.138.120.175 | cu-cheme-128.138.120.175.colorado.edu | 0 | | |
| 128.138.120.176 | cu-cheme-128.138.120.176.colorado.edu | 0 | | |
| 128.138.120.177 | cu-cheme-128.138.120.177.colorado.edu | 0 | | |
| 128.138.120.178 | cu-cheme-128.138.120.178.colorado.edu | 0 | | |
| 128.138.120.179 | cu-cheme-128.138.120.179.colorado.edu | 0 | | |
| 128.138.120.180 | cu-cheme-128.138.120.180.colorado.edu | 0 | | |
| 128.138.120.181 | cu-cheme-128.138.120.181.colorado.edu | 0 | | |
| 128.138.120.182 | cu-cheme-128.138.120.182.colorado.edu | 0 | | |
| 128.138.120.183 | cu-cheme-128.138.120.183.colorado.edu | 0 | | |
| 128.138.120.184 | cu-cheme-128.138.120.184.colorado.edu | 0 | | |
| 128.138.120.185 | cu-cheme-128.138.120.185.colorado.edu | 0 | | |
| 128.138.120.186 | cu-cheme-128.138.120.186.colorado.edu | 0 | | |
| 128.138.120.187 | cu-cheme-128.138.120.187.colorado.edu | 0 | | |
| 128.138.120.188 | cu-cheme-128.138.120.188.colorado.edu | 0 | | |
| 128.138.120.189 | cu-cheme-128.138.120.189.colorado.edu | 0 | | |
| 128.138.120.190 | cu-cheme-128.138.120.190.colorado.edu | 0 | | |
| 128.138.120.191 | cu-cheme-128.138.120.191.colorado.edu | 0 | | |
| 128.138.120.192 | cu-cheme-128.138.120.192.colorado.edu | 0 | | |
| 128.138.120.193 | cu-cheme-128.138.120.193.colorado.edu | 0 | | |
| 128.138.120.194 | cu-cheme-128.138.120.194.colorado.edu | 0 | | |
| 128.138.120.195 | cu-cheme-128.138.120.195.colorado.edu | 0 | | |
| 128.138.120.196 | cu-cheme-128.138.120.196.colorado.edu | 0 | | |
| 128.138.120.197 | cu-cheme-128.138.120.197.colorado.edu | 0 | | |
| 128.138.120.198 | cu-cheme-128.138.120.198.colorado.edu | 0 | | |
| 128.138.120.199 | cu-cheme-128.138.120.199.colorado.edu | 0 | | |
| 128.138.120.200 | cu-cheme-128.138.120.200.colorado.edu | 0 | | |
| 128.138.120.201 | cu-cheme-128.138.120.201.colorado.edu | 0 | | |
| 128.138.120.202 | cu-cheme-128.138.120.202.colorado.edu | 0 | | |
| 128.138.120.203 | cu-cheme-128.138.120.203.colorado.edu | 0 | | |
| 128.138.120.204 | cu-cheme-128.138.120.204.colorado.edu | 0 | | |
| 128.138.120.205 | cu-cheme-128.138.120.205.colorado.edu | 0 | | |
| 128.138.120.206 | cu-cheme-128.138.120.206.colorado.edu | 0 | | |
| 128.138.120.207 | cu-cheme-128.138.120.207.colorado.edu | 0 | | |
| 128.138.120.208 | cu-cheme-128.138.120.208.colorado.edu | 0 | | |
| 128.138.120.209 | cu-cheme-128.138.120.209.colorado.edu | 0 | | |
| 128.138.120.210 | cu-cheme-128.138.120.210.colorado.edu | 0 | | |
| 128.138.120.211 | cu-cheme-128.138.120.211.colorado.edu | 0 | | |
| 128.138.120.212 | cu-cheme-128.138.120.212.colorado.edu | 0 | | |
| 128.138.120.213 | cu-cheme-128.138.120.213.colorado.edu | 0 | | |
| 128.138.120.214 | cu-cheme-128.138.120.214.colorado.edu | 0 | | |
| 128.138.120.215 | cu-cheme-128.138.120.215.colorado.edu | 0 | | |
| 128.138.120.216 | cu-cheme-128.138.120.216.colorado.edu | 0 | | |
| 128.138.120.217 | cu-cheme-128.138.120.217.colorado.edu | 0 | | |
| 128.138.120.218 | cu-cheme-128.138.120.218.colorado.edu | 0 | | |
| 128.138.120.219 | cu-cheme-128.138.120.219.colorado.edu | 0 | | |
| 128.138.120.220 | cu-cheme-128.138.120.220.colorado.edu | 0 | | |
| 128.138.120.221 | cu-cheme-128.138.120.221.colorado.edu | 0 | | |
| 128.138.120.222 | cu-cheme-128.138.120.222.colorado.edu | 0 | | |
| 128.138.120.223 | cu-cheme-128.138.120.223.colorado.edu | 0 | | |
| 128.138.120.224 | cu-cheme-128.138.120.224.colorado.edu | 0 | | |
| 128.138.120.225 | cu-cheme-128.138.120.225.colorado.edu | 0 | | |
| 128.138.120.226 | cu-cheme-128.138.120.226.colorado.edu | 0 | | |
| 128.138.120.227 | cu-cheme-128.138.120.227.colorado.edu | 0 | | |
| 128.138.120.228 | cu-cheme-128.138.120.228.colorado.edu | 0 | | |
| 128.138.120.229 | cu-cheme-128.138.120.229.colorado.edu | 0 | | |
| 128.138.120.230 | cu-cheme-128.138.120.230.colorado.edu | 0 | | |
| 128.138.120.231 | cu-cheme-128.138.120.231.colorado.edu | 0 | | |
| 128.138.120.232 | cu-cheme-128.138.120.232.colorado.edu | 0 | | |
| 128.138.120.233 | cu-cheme-128.138.120.233.colorado.edu | 0 | | |
| 128.138.120.234 | cu-cheme-128.138.120.234.colorado.edu | 0 | | |
| 128.138.120.235 | cu-cheme-128.138.120.235.colorado.edu | 0 | | |
| 128.138.120.236 | cu-cheme-128.138.120.236.colorado.edu | 0 | | |
| 128.138.120.237 | cu-cheme-128.138.120.237.colorado.edu | 0 | | |
| 128.138.120.238 | cu-cheme-128.138.120.238.colorado.edu | 0 | | |
| 128.138.120.239 | cu-cheme-128.138.120.239.colorado.edu | 0 | | |
| 128.138.120.240 | cu-cheme-128.138.120.240.colorado.edu | 0 | | |
| 128.138.120.241 | cu-cheme-128.138.120.241.colorado.edu | 0 | | |
| 128.138.120.242 | cu-cheme-128.138.120.242.colorado.edu | 0 | | |
| 128.138.120.243 | cu-cheme-128.138.120.243.colorado.edu | 0 | | |
| 128.138.120.244 | cu-cheme-128.138.120.244.colorado.edu | 0 | | |
| 128.138.120.245 | cu-cheme-128.138.120.245.colorado.edu | 0 | | |
| 128.138.120.246 | cu-cheme-128.138.120.246.colorado.edu | 0 | | |
| 128.138.120.247 | cu-cheme-128.138.120.247.colorado.edu | 0 | | |
| 128.138.120.248 | cu-cheme-128.138.120.248.colorado.edu | 0 | | |
| 128.138.120.249 | cu-cheme-128.138.120.249.colorado.edu | 0 | | |
| 128.138.120.250 | cu-cheme-128.138.120.250.colorado.edu | 0 | | |
| 128.138.120.251 | cu-cheme-128.138.120.251.colorado.edu | 0 | | |
| 128.138.120.252 | cu-cheme-128.138.120.252.colorado.edu | 0 | | |
| 128.138.120.253 | cu-cheme-128.138.120.253.colorado.edu | 0 | | |
| 128.138.120.254 | cu-cheme-128.138.120.254.colorado.edu | 0 | | |
| 128.138.120.255 | — | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -f4 -m9 128.138.120.126
traceroute to 128.138.120.126 (128.138.120.126): 9 hops max, 52 byte packets
7 *
8 *
9 *
Measurement taken from 
IPinfo ProbeNet in Frankfurt am Main, DE
IPinfo ProbeNet in Frankfurt am Main, DEOn