Summary
| ASN | AS104 University of Colorado at Boulder |
| BGP | 128.138.0.0/16 |
| IPs with RDNS | 230 |
| Hosted Domains | 0 |
| Pingable IPs | 0 |
| Router IPs | 0 |
| 128.138.154.0 | — | 0 |  | |
| 128.138.154.1 | hum-gw-libr154.colorado.edu | 0 | | |
| 128.138.154.2 | — | 0 | | |
| 128.138.154.3 | — | 0 | | |
| 128.138.154.4 | — | 0 | | |
| 128.138.154.5 | — | 0 | | |
| 128.138.154.6 | — | 0 | | |
| 128.138.154.7 | libr154-20.colorado.edu | 0 | | |
| 128.138.154.8 | sps-libr-circ-prs.colorado.edu | 0 | | |
| 128.138.154.9 | libr154-9.colorado.edu | 0 | | |
| 128.138.154.10 | lib-medialab-xerox.colorado.edu | 0 | | |
| 128.138.154.11 | — | 0 | | |
| 128.138.154.12 | libillcp-l10501.ad.colorado.edu | 0 | | |
| 128.138.154.13 | — | 0 | | |
| 128.138.154.14 | slfchk3l10886.colorado.edu | 0 | | |
| 128.138.154.15 | libr154-15.colorado.edu | 0 | | |
| 128.138.154.16 | cpi-libr-e178-pt1.colorado.edu | 0 | | |
| 128.138.154.17 | cpi-libr-e178-pt2.colorado.edu | 0 | | |
| 128.138.154.18 | — | 0 | | |
| 128.138.154.19 | libr154-19.colorado.edu | 0 | | |
| 128.138.154.20 | — | 0 | | |
| 128.138.154.21 | apc-l10713.colorado.edu | 0 | | |
| 128.138.154.22 | libcat1.colorado.edu | 0 | | |
| 128.138.154.23 | — | 0 | | |
| 128.138.154.24 | — | 0 | | |
| 128.138.154.25 | hp601dn-l10625.ad.colorado.edu | 0 | | |
| 128.138.154.26 | media9-l11025.colorado.edu | 0 | | |
| 128.138.154.27 | libhtpl1.colorado.edu | 0 | | |
| 128.138.154.28 | — | 0 | | |
| 128.138.154.29 | libr154-29.colorado.edu | 0 | | |
| 128.138.154.30 | returns-l10906.ad.colorado.edu | 0 | | |
| 128.138.154.31 | — | 0 | | |
| 128.138.154.32 | mabbetm-l10741.ad.colorado.edu | 0 | | |
| 128.138.154.33 | — | 0 | | |
| 128.138.154.34 | envir-sys.colorado.edu | 0 | | |
| 128.138.154.35 | libr-nrln-d-086.colorado.edu | 0 | | |
| 128.138.154.36 | libr-nrln-d-008.colorado.edu | 0 | | |
| 128.138.154.37 | libr154-37.colorado.edu | 0 | | |
| 128.138.154.38 | rid-l10858.ad.colorado.edu | 0 | | |
| 128.138.154.39 | libpresptr-l10982.colorado.edu | 0 | | |
| 128.138.154.40 | — | 0 | | |
| 128.138.154.41 | zhangptr-187805.ad.colorado.edu | 0 | | |
| 128.138.154.42 | returns-l10907.ad.colorado.edu | 0 | | |
| 128.138.154.43 | cirres01-l10693.ad.colorado.edu | 0 | | |
| 128.138.154.44 | cirres02-l10694.ad.colorado.edu | 0 | | |
| 128.138.154.45 | cirres03-l10695.ad.colorado.edu | 0 | | |
| 128.138.154.46 | lib-e260-pr1.colorado.edu | 0 | | |
| 128.138.154.47 | lib-muf110-ptr.colorado.edu | 0 | | |
| 128.138.154.48 | maxwellptr-189953.ad.colorado.edu | 0 | | |
| 128.138.154.49 | libr-e107-swx.colorado.edu | 0 | | |
| 128.138.154.50 | libr-e105-swx.colorado.edu | 0 | | |
| 128.138.154.51 | libr-e137-swx.colorado.edu | 0 | | |
| 128.138.154.52 | circscan-l10521.ad.colorado.edu | 0 | | |
| 128.138.154.53 | e103scan-l10521.ad.colorado.edu | 0 | | |
| 128.138.154.54 | — | 0 | | |
| 128.138.154.55 | e103pub3-l10082.ad.colorado.edu | 0 | | |
| 128.138.154.56 | wepa-libr-e230.colorado.edu | 0 | | |
| 128.138.154.57 | — | 0 | | |
| 128.138.154.58 | circstdt-201897.ad.colorado.edu | 0 | | |
| 128.138.154.59 | lib-e260-prs.colorado.edu | 0 | | |
| 128.138.154.60 | wepa-libr-e230-2.colorado.edu | 0 | | |
| 128.138.154.61 | — | 0 | | |
| 128.138.154.62 | illstd1-l10908.ad.colorado.edu | 0 | | |
| 128.138.154.63 | — | 0 | | |
| 128.138.154.64 | xrx0000aafbb310.ad.colorado.edu | 0 | | |
| 128.138.154.65 | — | 0 | | |
| 128.138.154.66 | — | 0 | | |
| 128.138.154.67 | — | 0 | | |
| 128.138.154.68 | wepa-libr-e230-3.colorado.edu | 0 | | |
| 128.138.154.69 | — | 0 | | |
| 128.138.154.70 | wepa-libr-m250.colorado.edu | 0 | | |
| 128.138.154.71 | — | 0 | | |
| 128.138.154.72 | xerox-mail.colorado.edu | 0 | | |
| 128.138.154.73 | gs-p-001.colorado.edu | 0 | | |
| 128.138.154.74 | govcd02-201851.ad.colorado.edu | 0 | | |
| 128.138.154.75 | lj401dn-l10838.colorado.edu | 0 | | |
| 128.138.154.76 | cu-norlin-128.138.154.76.colorado.edu | 0 | | |
| 128.138.154.77 | cu-norlin-128.138.154.77.colorado.edu | 0 | | |
| 128.138.154.78 | cu-norlin-128.138.154.78.colorado.edu | 0 | | |
| 128.138.154.79 | cu-norlin-128.138.154.79.colorado.edu | 0 | | |
| 128.138.154.80 | cu-norlin-128.138.154.80.colorado.edu | 0 | | |
| 128.138.154.81 | cu-norlin-128.138.154.81.colorado.edu | 0 | | |
| 128.138.154.82 | cu-norlin-128.138.154.82.colorado.edu | 0 | | |
| 128.138.154.83 | cu-norlin-128.138.154.83.colorado.edu | 0 | | |
| 128.138.154.84 | cu-norlin-128.138.154.84.colorado.edu | 0 | | |
| 128.138.154.85 | cu-norlin-128.138.154.85.colorado.edu | 0 | | |
| 128.138.154.86 | cu-norlin-128.138.154.86.colorado.edu | 0 | | |
| 128.138.154.87 | cu-norlin-128.138.154.87.colorado.edu | 0 | | |
| 128.138.154.88 | circ3msc2-195093.colorado.edu | 0 | | |
| 128.138.154.89 | cu-norlin-128.138.154.89.colorado.edu | 0 | | |
| 128.138.154.90 | cu-norlin-128.138.154.90.colorado.edu | 0 | | |
| 128.138.154.91 | cu-norlin-128.138.154.91.colorado.edu | 0 | | |
| 128.138.154.92 | cu-norlin-128.138.154.92.colorado.edu | 0 | | |
| 128.138.154.93 | cu-norlin-128.138.154.93.colorado.edu | 0 | | |
| 128.138.154.94 | cu-norlin-128.138.154.94.colorado.edu | 0 | | |
| 128.138.154.95 | cu-norlin-128.138.154.95.colorado.edu | 0 | | |
| 128.138.154.96 | cu-norlin-128.138.154.96.colorado.edu | 0 | | |
| 128.138.154.97 | cu-norlin-128.138.154.97.colorado.edu | 0 | | |
| 128.138.154.98 | cu-norlin-128.138.154.98.colorado.edu | 0 | | |
| 128.138.154.99 | cu-norlin-128.138.154.99.colorado.edu | 0 | | |
| 128.138.154.100 | cu-norlin-128.138.154.100.colorado.edu | 0 | | |
| 128.138.154.101 | cu-norlin-128.138.154.101.colorado.edu | 0 | | |
| 128.138.154.102 | cu-norlin-128.138.154.102.colorado.edu | 0 | | |
| 128.138.154.103 | hp4525-l10725.colorado.edu | 0 | | |
| 128.138.154.104 | cu-norlin-128.138.154.104.colorado.edu | 0 | | |
| 128.138.154.105 | cu-norlin-128.138.154.105.colorado.edu | 0 | | |
| 128.138.154.106 | cu-norlin-128.138.154.106.colorado.edu | 0 | | |
| 128.138.154.107 | cu-norlin-128.138.154.107.colorado.edu | 0 | | |
| 128.138.154.108 | cu-norlin-128.138.154.108.colorado.edu | 0 | | |
| 128.138.154.109 | cu-norlin-128.138.154.109.colorado.edu | 0 | | |
| 128.138.154.110 | cu-norlin-128.138.154.110.colorado.edu | 0 | | |
| 128.138.154.111 | cu-norlin-128.138.154.111.colorado.edu | 0 | | |
| 128.138.154.112 | cu-norlin-128.138.154.112.colorado.edu | 0 | | |
| 128.138.154.113 | cu-norlin-128.138.154.113.colorado.edu | 0 | | |
| 128.138.154.114 | cu-norlin-128.138.154.114.colorado.edu | 0 | | |
| 128.138.154.115 | deansoffice.colorado.edu | 0 | | |
| 128.138.154.116 | cu-norlin-128.138.154.116.colorado.edu | 0 | | |
| 128.138.154.117 | cu-norlin-128.138.154.117.colorado.edu | 0 | | |
| 128.138.154.118 | cu-norlin-128.138.154.118.colorado.edu | 0 | | |
| 128.138.154.119 | cu-norlin-128.138.154.119.colorado.edu | 0 | | |
| 128.138.154.120 | cu-norlin-128.138.154.120.colorado.edu | 0 | | |
| 128.138.154.121 | cu-norlin-128.138.154.121.colorado.edu | 0 | | |
| 128.138.154.122 | cu-norlin-128.138.154.122.colorado.edu | 0 | | |
| 128.138.154.123 | cu-norlin-128.138.154.123.colorado.edu | 0 | | |
| 128.138.154.124 | cu-norlin-128.138.154.124.colorado.edu | 0 | | |
| 128.138.154.125 | cu-norlin-128.138.154.125.colorado.edu | 0 | | |
| 128.138.154.126 | cu-norlin-128.138.154.126.colorado.edu | 0 | | |
| 128.138.154.127 | cu-norlin-128.138.154.127.colorado.edu | 0 | | |
| 128.138.154.128 | cu-norlin-128.138.154.128.colorado.edu | 0 | | |
| 128.138.154.129 | cu-norlin-128.138.154.129.colorado.edu | 0 | | |
| 128.138.154.130 | cu-norlin-128.138.154.130.colorado.edu | 0 | | |
| 128.138.154.131 | cu-norlin-128.138.154.131.colorado.edu | 0 | | |
| 128.138.154.132 | cu-norlin-128.138.154.132.colorado.edu | 0 | | |
| 128.138.154.133 | cu-norlin-128.138.154.133.colorado.edu | 0 | | |
| 128.138.154.134 | cu-norlin-128.138.154.134.colorado.edu | 0 | | |
| 128.138.154.135 | cu-norlin-128.138.154.135.colorado.edu | 0 | | |
| 128.138.154.136 | cu-norlin-128.138.154.136.colorado.edu | 0 | | |
| 128.138.154.137 | cu-norlin-128.138.154.137.colorado.edu | 0 | | |
| 128.138.154.138 | allen-198257.colorado.edu | 0 | | |
| 128.138.154.139 | cu-norlin-128.138.154.139.colorado.edu | 0 | | |
| 128.138.154.140 | cu-norlin-128.138.154.140.colorado.edu | 0 | | |
| 128.138.154.141 | cu-norlin-128.138.154.141.colorado.edu | 0 | | |
| 128.138.154.142 | cu-norlin-128.138.154.142.colorado.edu | 0 | | |
| 128.138.154.143 | cu-norlin-128.138.154.143.colorado.edu | 0 | | |
| 128.138.154.144 | cu-norlin-128.138.154.144.colorado.edu | 0 | | |
| 128.138.154.145 | cu-norlin-128.138.154.145.colorado.edu | 0 | | |
| 128.138.154.146 | kiosqll-l10184.ad.colorado.edu | 0 | | |
| 128.138.154.147 | cu-norlin-128.138.154.147.colorado.edu | 0 | | |
| 128.138.154.148 | cu-norlin-128.138.154.148.colorado.edu | 0 | | |
| 128.138.154.149 | cu-norlin-128.138.154.149.colorado.edu | 0 | | |
| 128.138.154.150 | cu-norlin-128.138.154.150.colorado.edu | 0 | | |
| 128.138.154.151 | cu-norlin-128.138.154.151.colorado.edu | 0 | | |
| 128.138.154.152 | cu-norlin-128.138.154.152.colorado.edu | 0 | | |
| 128.138.154.153 | cu-norlin-128.138.154.153.colorado.edu | 0 | | |
| 128.138.154.154 | cu-norlin-128.138.154.154.colorado.edu | 0 | | |
| 128.138.154.155 | l99901-pataccnt.colorado.edu | 0 | | |
| 128.138.154.156 | kiosqlr-l10197.ad.colorado.edu | 0 | | |
| 128.138.154.157 | sellecks-l10417old.ad.colorado.edu | 0 | | |
| 128.138.154.158 | arellano-l10419old.ad.colorado.edu | 0 | | |
| 128.138.154.159 | circstdt-l10910.ad.colorado.edu | 0 | | |
| 128.138.154.160 | cu-norlin-128.138.154.160.colorado.edu | 0 | | |
| 128.138.154.161 | cu-norlin-128.138.154.161.colorado.edu | 0 | | |
| 128.138.154.162 | cu-norlin-128.138.154.162.colorado.edu | 0 | | |
| 128.138.154.163 | cu-norlin-128.138.154.163.colorado.edu | 0 | | |
| 128.138.154.164 | cu-norlin-128.138.154.164.colorado.edu | 0 | | |
| 128.138.154.165 | cu-norlin-128.138.154.165.colorado.edu | 0 | | |
| 128.138.154.166 | cu-norlin-128.138.154.166.colorado.edu | 0 | | |
| 128.138.154.167 | cu-norlin-128.138.154.167.colorado.edu | 0 | | |
| 128.138.154.168 | cu-norlin-128.138.154.168.colorado.edu | 0 | | |
| 128.138.154.169 | cu-norlin-128.138.154.169.colorado.edu | 0 | | |
| 128.138.154.170 | cu-norlin-128.138.154.170.colorado.edu | 0 | | |
| 128.138.154.171 | cu-norlin-128.138.154.171.colorado.edu | 0 | | |
| 128.138.154.172 | cu-norlin-128.138.154.172.colorado.edu | 0 | | |
| 128.138.154.173 | cu-norlin-128.138.154.173.colorado.edu | 0 | | |
| 128.138.154.174 | xrx9c934e03ccb5.ad.colorado.edu | 0 | | |
| 128.138.154.175 | illstd4-l10511.ad.colorado.edu | 0 | | |
| 128.138.154.176 | sekoj-l10615old.ad.colorado.edu | 0 | | |
| 128.138.154.177 | npifb791b.colorado.edu | 0 | | |
| 128.138.154.178 | media3-l10323.colorado.edu | 0 | | |
| 128.138.154.179 | illstd6-l10509old.ad.colorado.edu | 0 | | |
| 128.138.154.180 | cu-norlin-128.138.154.180.colorado.edu | 0 | | |
| 128.138.154.181 | cu-norlin-128.138.154.181.colorado.edu | 0 | | |
| 128.138.154.182 | cu-norlin-128.138.154.182.colorado.edu | 0 | | |
| 128.138.154.183 | cu-norlin-128.138.154.183.colorado.edu | 0 | | |
| 128.138.154.184 | cu-norlin-128.138.154.184.colorado.edu | 0 | | |
| 128.138.154.185 | cu-norlin-128.138.154.185.colorado.edu | 0 | | |
| 128.138.154.186 | cu-norlin-128.138.154.186.colorado.edu | 0 | | |
| 128.138.154.187 | cu-norlin-128.138.154.187.colorado.edu | 0 | | |
| 128.138.154.188 | cu-norlin-128.138.154.188.colorado.edu | 0 | | |
| 128.138.154.189 | cu-norlin-128.138.154.189.colorado.edu | 0 | | |
| 128.138.154.190 | refdeskptr-l10435.ad.colorado.edu | 0 | | |
| 128.138.154.191 | cu-norlin-128.138.154.191.colorado.edu | 0 | | |
| 128.138.154.192 | cu-norlin-128.138.154.192.colorado.edu | 0 | | |
| 128.138.154.193 | cu-norlin-128.138.154.193.colorado.edu | 0 | | |
| 128.138.154.194 | cu-norlin-128.138.154.194.colorado.edu | 0 | | |
| 128.138.154.195 | cu-norlin-128.138.154.195.colorado.edu | 0 | | |
| 128.138.154.196 | cu-norlin-128.138.154.196.colorado.edu | 0 | | |
| 128.138.154.197 | cu-norlin-128.138.154.197.colorado.edu | 0 | | |
| 128.138.154.198 | cu-norlin-128.138.154.198.colorado.edu | 0 | | |
| 128.138.154.199 | cu-norlin-128.138.154.199.colorado.edu | 0 | | |
| 128.138.154.200 | norcount.colorado.edu | 0 | | |
| 128.138.154.201 | cu-norlin-128.138.154.201.colorado.edu | 0 | | |
| 128.138.154.202 | cu-norlin-128.138.154.202.colorado.edu | 0 | | |
| 128.138.154.203 | cu-norlin-128.138.154.203.colorado.edu | 0 | | |
| 128.138.154.204 | cu-norlin-128.138.154.204.colorado.edu | 0 | | |
| 128.138.154.205 | cu-norlin-128.138.154.205.colorado.edu | 0 | | |
| 128.138.154.206 | cu-norlin-128.138.154.206.colorado.edu | 0 | | |
| 128.138.154.207 | cu-norlin-128.138.154.207.colorado.edu | 0 | | |
| 128.138.154.208 | cu-norlin-128.138.154.208.colorado.edu | 0 | | |
| 128.138.154.209 | cu-norlin-128.138.154.209.colorado.edu | 0 | | |
| 128.138.154.210 | cu-norlin-128.138.154.210.colorado.edu | 0 | | |
| 128.138.154.211 | cu-norlin-128.138.154.211.colorado.edu | 0 | | |
| 128.138.154.212 | libr154-212.colorado.edu | 0 | | |
| 128.138.154.213 | cu-norlin-128.138.154.213.colorado.edu | 0 | | |
| 128.138.154.214 | cu-norlin-128.138.154.214.colorado.edu | 0 | | |
| 128.138.154.215 | cu-norlin-128.138.154.215.colorado.edu | 0 | | |
| 128.138.154.216 | cu-norlin-128.138.154.216.colorado.edu | 0 | | |
| 128.138.154.217 | cu-norlin-128.138.154.217.colorado.edu | 0 | | |
| 128.138.154.218 | cu-norlin-128.138.154.218.colorado.edu | 0 | | |
| 128.138.154.219 | cu-norlin-128.138.154.219.colorado.edu | 0 | | |
| 128.138.154.220 | cu-norlin-128.138.154.220.colorado.edu | 0 | | |
| 128.138.154.221 | cu-norlin-128.138.154.221.colorado.edu | 0 | | |
| 128.138.154.222 | cu-norlin-128.138.154.222.colorado.edu | 0 | | |
| 128.138.154.223 | cu-norlin-128.138.154.223.colorado.edu | 0 | | |
| 128.138.154.224 | cu-norlin-128.138.154.224.colorado.edu | 0 | | |
| 128.138.154.225 | cu-norlin-128.138.154.225.colorado.edu | 0 | | |
| 128.138.154.226 | cu-norlin-128.138.154.226.colorado.edu | 0 | | |
| 128.138.154.227 | cu-norlin-128.138.154.227.colorado.edu | 0 | | |
| 128.138.154.228 | cu-norlin-128.138.154.228.colorado.edu | 0 | | |
| 128.138.154.229 | cu-norlin-128.138.154.229.colorado.edu | 0 | | |
| 128.138.154.230 | cu-norlin-128.138.154.230.colorado.edu | 0 | | |
| 128.138.154.231 | cu-norlin-128.138.154.231.colorado.edu | 0 | | |
| 128.138.154.232 | cu-norlin-128.138.154.232.colorado.edu | 0 | | |
| 128.138.154.233 | cu-norlin-128.138.154.233.colorado.edu | 0 | | |
| 128.138.154.234 | cu-norlin-128.138.154.234.colorado.edu | 0 | | |
| 128.138.154.235 | cu-norlin-128.138.154.235.colorado.edu | 0 | | |
| 128.138.154.236 | lib-circ-xerox.colorado.edu | 0 | | |
| 128.138.154.237 | cu-norlin-128.138.154.237.colorado.edu | 0 | | |
| 128.138.154.238 | cu-norlin-128.138.154.238.colorado.edu | 0 | | |
| 128.138.154.239 | cu-norlin-128.138.154.239.colorado.edu | 0 | | |
| 128.138.154.240 | cu-norlin-128.138.154.240.colorado.edu | 0 | | |
| 128.138.154.241 | cu-norlin-128.138.154.241.colorado.edu | 0 | | |
| 128.138.154.242 | cu-norlin-128.138.154.242.colorado.edu | 0 | | |
| 128.138.154.243 | cu-norlin-128.138.154.243.colorado.edu | 0 | | |
| 128.138.154.244 | cu-norlin-128.138.154.244.colorado.edu | 0 | | |
| 128.138.154.245 | cu-norlin-128.138.154.245.colorado.edu | 0 | | |
| 128.138.154.246 | cu-norlin-128.138.154.246.colorado.edu | 0 | | |
| 128.138.154.247 | cu-norlin-128.138.154.247.colorado.edu | 0 | | |
| 128.138.154.248 | cu-norlin-128.138.154.248.colorado.edu | 0 | | |
| 128.138.154.249 | cu-norlin-128.138.154.249.colorado.edu | 0 | | |
| 128.138.154.250 | cu-norlin-128.138.154.250.colorado.edu | 0 | | |
| 128.138.154.251 | cu-norlin-128.138.154.251.colorado.edu | 0 | | |
| 128.138.154.252 | cu-norlin-128.138.154.252.colorado.edu | 0 | | |
| 128.138.154.253 | cu-norlin-128.138.154.253.colorado.edu | 0 | | |
| 128.138.154.254 | cu-norlin-128.138.154.254.colorado.edu | 0 | | |
| 128.138.154.255 | — | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$ traceroute -a -n -q1 -f3 -m8 128.138.154.112
traceroute to 128.138.154.112 (128.138.154.112): 8 hops max, 52 byte packets
6 *
7 *
8 *
Measurement taken from 
IPinfo ProbeNet in Edinburgh, GB
IPinfo ProbeNet in Edinburgh, GBOn