Summary
| ASN | AS104 University of Colorado at Boulder |
| BGP | 128.138.0.0/16 |
| IPs with RDNS | 190 |
| Hosted Domains | 0 |
| Pingable IPs | 0 |
| Router IPs | 0 |
| 128.138.99.0 | — | 0 |  | |
| 128.138.99.1 | gateway.colorado.edu | 0 | | |
| 128.138.99.2 | — | 0 | | |
| 128.138.99.3 | — | 0 | | |
| 128.138.99.4 | — | 0 | | |
| 128.138.99.5 | — | 0 | | |
| 128.138.99.6 | hds-umc-printer1.colorado.edu | 0 | | |
| 128.138.99.7 | umc99-7.colorado.edu | 0 | | |
| 128.138.99.8 | hds-fs-alodge-01.colorado.edu | 0 | | |
| 128.138.99.9 | hds-fs-slum-01.colorado.edu | 0 | | |
| 128.138.99.10 | hds-fs-elcan-01.colorado.edu | 0 | | |
| 128.138.99.11 | hds-fs-slum-02.colorado.edu | 0 | | |
| 128.138.99.12 | hds-fs-tabor-01.colorado.edu | 0 | | |
| 128.138.99.13 | hds-pr-umc186.colorado.edu | 0 | | |
| 128.138.99.14 | hds-pr-umc162-color.colorado.edu | 0 | | |
| 128.138.99.15 | hds-pr-umc270c-color.colorado.edu | 0 | | |
| 128.138.99.16 | hds-pr-umc188-color.colorado.edu | 0 | | |
| 128.138.99.17 | hdsadm99-17.colorado.edu | 0 | | |
| 128.138.99.18 | — | 0 | | |
| 128.138.99.19 | hds-pr-umc-192.colorado.edu | 0 | | |
| 128.138.99.20 | cu-tcom-hdsadm-128.138.99.20.colorado.edu | 0 | | |
| 128.138.99.21 | cu-tcom-hdsadm-128.138.99.21.colorado.edu | 0 | | |
| 128.138.99.22 | cu-tcom-hdsadm-128.138.99.22.colorado.edu | 0 | | |
| 128.138.99.23 | cu-tcom-hdsadm-128.138.99.23.colorado.edu | 0 | | |
| 128.138.99.24 | cu-tcom-hdsadm-128.138.99.24.colorado.edu | 0 | | |
| 128.138.99.25 | cu-tcom-hdsadm-128.138.99.25.colorado.edu | 0 | | |
| 128.138.99.26 | cu-tcom-hdsadm-128.138.99.26.colorado.edu | 0 | | |
| 128.138.99.27 | cu-tcom-hdsadm-128.138.99.27.colorado.edu | 0 | | |
| 128.138.99.28 | cu-tcom-hdsadm-128.138.99.28.colorado.edu | 0 | | |
| 128.138.99.29 | cu-tcom-hdsadm-128.138.99.29.colorado.edu | 0 | | |
| 128.138.99.30 | cu-tcom-hdsadm-128.138.99.30.colorado.edu | 0 | | |
| 128.138.99.31 | cu-tcom-hdsadm-128.138.99.31.colorado.edu | 0 | | |
| 128.138.99.32 | cu-tcom-hdsadm-128.138.99.32.colorado.edu | 0 | | |
| 128.138.99.33 | cu-tcom-hdsadm-128.138.99.33.colorado.edu | 0 | | |
| 128.138.99.34 | cu-tcom-hdsadm-128.138.99.34.colorado.edu | 0 | | |
| 128.138.99.35 | cu-tcom-hdsadm-128.138.99.35.colorado.edu | 0 | | |
| 128.138.99.36 | cu-tcom-hdsadm-128.138.99.36.colorado.edu | 0 | | |
| 128.138.99.37 | cu-tcom-hdsadm-128.138.99.37.colorado.edu | 0 | | |
| 128.138.99.38 | cu-tcom-hdsadm-128.138.99.38.colorado.edu | 0 | | |
| 128.138.99.39 | cu-tcom-hdsadm-128.138.99.39.colorado.edu | 0 | | |
| 128.138.99.40 | cu-tcom-hdsadm-128.138.99.40.colorado.edu | 0 | | |
| 128.138.99.41 | cu-tcom-hdsadm-128.138.99.41.colorado.edu | 0 | | |
| 128.138.99.42 | cu-tcom-hdsadm-128.138.99.42.colorado.edu | 0 | | |
| 128.138.99.43 | cu-tcom-hdsadm-128.138.99.43.colorado.edu | 0 | | |
| 128.138.99.44 | cu-tcom-hdsadm-128.138.99.44.colorado.edu | 0 | | |
| 128.138.99.45 | cu-tcom-hdsadm-128.138.99.45.colorado.edu | 0 | | |
| 128.138.99.46 | cu-tcom-hdsadm-128.138.99.46.colorado.edu | 0 | | |
| 128.138.99.47 | cu-tcom-hdsadm-128.138.99.47.colorado.edu | 0 | | |
| 128.138.99.48 | cu-tcom-hdsadm-128.138.99.48.colorado.edu | 0 | | |
| 128.138.99.49 | cu-tcom-hdsadm-128.138.99.49.colorado.edu | 0 | | |
| 128.138.99.50 | cu-tcom-hdsadm-128.138.99.50.colorado.edu | 0 | | |
| 128.138.99.51 | cu-tcom-hdsadm-128.138.99.51.colorado.edu | 0 | | |
| 128.138.99.52 | cu-tcom-hdsadm-128.138.99.52.colorado.edu | 0 | | |
| 128.138.99.53 | cu-tcom-hdsadm-128.138.99.53.colorado.edu | 0 | | |
| 128.138.99.54 | cu-tcom-hdsadm-128.138.99.54.colorado.edu | 0 | | |
| 128.138.99.55 | cu-tcom-hdsadm-128.138.99.55.colorado.edu | 0 | | |
| 128.138.99.56 | cu-tcom-hdsadm-128.138.99.56.colorado.edu | 0 | | |
| 128.138.99.57 | cu-tcom-hdsadm-128.138.99.57.colorado.edu | 0 | | |
| 128.138.99.58 | cu-tcom-hdsadm-128.138.99.58.colorado.edu | 0 | | |
| 128.138.99.59 | cu-tcom-hdsadm-128.138.99.59.colorado.edu | 0 | | |
| 128.138.99.60 | cu-tcom-hdsadm-128.138.99.60.colorado.edu | 0 | | |
| 128.138.99.61 | cu-tcom-hdsadm-128.138.99.61.colorado.edu | 0 | | |
| 128.138.99.62 | cu-tcom-hdsadm-128.138.99.62.colorado.edu | 0 | | |
| 128.138.99.63 | — | 0 | | |
| 128.138.99.64 | — | 0 | | |
| 128.138.99.65 | tcom99-65-gw.colorado.edu | 0 | | |
| 128.138.99.66 | — | 0 | | |
| 128.138.99.67 | — | 0 | | |
| 128.138.99.68 | tcom99-68-dhcp.colorado.edu | 0 | | |
| 128.138.99.69 | tcom99-69-dhcp.colorado.edu | 0 | | |
| 128.138.99.70 | tcom99-70-dhcp.colorado.edu | 0 | | |
| 128.138.99.71 | tcom99-71-dhcp.colorado.edu | 0 | | |
| 128.138.99.72 | tcom99-72-dhcp.colorado.edu | 0 | | |
| 128.138.99.73 | tcom99-73-dhcp.colorado.edu | 0 | | |
| 128.138.99.74 | tcom99-74-dhcp.colorado.edu | 0 | | |
| 128.138.99.75 | tcom99-75-dhcp.colorado.edu | 0 | | |
| 128.138.99.76 | tcom99-76-dhcp.colorado.edu | 0 | | |
| 128.138.99.77 | tcom99-77-dhcp.colorado.edu | 0 | | |
| 128.138.99.78 | tcom99-78-dhcp.colorado.edu | 0 | | |
| 128.138.99.79 | — | 0 | | |
| 128.138.99.80 | — | 0 | | |
| 128.138.99.81 | — | 0 | | |
| 128.138.99.82 | — | 0 | | |
| 128.138.99.83 | ntia-umc.colorado.edu | 0 | | |
| 128.138.99.84 | — | 0 | | |
| 128.138.99.85 | — | 0 | | |
| 128.138.99.86 | — | 0 | | |
| 128.138.99.87 | — | 0 | | |
| 128.138.99.88 | — | 0 | | |
| 128.138.99.89 | — | 0 | | |
| 128.138.99.90 | — | 0 | | |
| 128.138.99.91 | — | 0 | | |
| 128.138.99.92 | — | 0 | | |
| 128.138.99.93 | — | 0 | | |
| 128.138.99.94 | — | 0 | | |
| 128.138.99.95 | — | 0 | | |
| 128.138.99.96 | — | 0 | | |
| 128.138.99.97 | — | 0 | | |
| 128.138.99.98 | — | 0 | | |
| 128.138.99.99 | — | 0 | | |
| 128.138.99.100 | — | 0 | | |
| 128.138.99.101 | — | 0 | | |
| 128.138.99.102 | — | 0 | | |
| 128.138.99.103 | — | 0 | | |
| 128.138.99.104 | — | 0 | | |
| 128.138.99.105 | — | 0 | | |
| 128.138.99.106 | — | 0 | | |
| 128.138.99.107 | — | 0 | | |
| 128.138.99.108 | — | 0 | | |
| 128.138.99.109 | — | 0 | | |
| 128.138.99.110 | — | 0 | | |
| 128.138.99.111 | — | 0 | | |
| 128.138.99.112 | — | 0 | | |
| 128.138.99.113 | — | 0 | | |
| 128.138.99.114 | — | 0 | | |
| 128.138.99.115 | — | 0 | | |
| 128.138.99.116 | — | 0 | | |
| 128.138.99.117 | — | 0 | | |
| 128.138.99.118 | — | 0 | | |
| 128.138.99.119 | — | 0 | | |
| 128.138.99.120 | — | 0 | | |
| 128.138.99.121 | — | 0 | | |
| 128.138.99.122 | — | 0 | | |
| 128.138.99.123 | — | 0 | | |
| 128.138.99.124 | — | 0 | | |
| 128.138.99.125 | — | 0 | | |
| 128.138.99.126 | — | 0 | | |
| 128.138.99.127 | — | 0 | | |
| 128.138.99.128 | — | 0 | | |
| 128.138.99.129 | tcom-gw-uclub.colorado.edu | 0 | | |
| 128.138.99.130 | — | 0 | | |
| 128.138.99.131 | club99-131.colorado.edu | 0 | | |
| 128.138.99.132 | — | 0 | | |
| 128.138.99.133 | soteria.colorado.edu | 0 | | |
| 128.138.99.134 | soteria-cv.colorado.edu | 0 | | |
| 128.138.99.135 | soteria-lib.colorado.edu | 0 | | |
| 128.138.99.136 | club99-136.colorado.edu | 0 | | |
| 128.138.99.137 | club99-137.colorado.edu | 0 | | |
| 128.138.99.138 | club99-138.colorado.edu | 0 | | |
| 128.138.99.139 | club99-139.colorado.edu | 0 | | |
| 128.138.99.140 | aacitmanager.colorado.edu | 0 | | |
| 128.138.99.141 | prn-club213.colorado.edu | 0 | | |
| 128.138.99.142 | club99-142.colorado.edu | 0 | | |
| 128.138.99.143 | club99-143.colorado.edu | 0 | | |
| 128.138.99.144 | club99-144.colorado.edu | 0 | | |
| 128.138.99.145 | club99-145.colorado.edu | 0 | | |
| 128.138.99.146 | club99-146.colorado.edu | 0 | | |
| 128.138.99.147 | club99-147.colorado.edu | 0 | | |
| 128.138.99.148 | club99-148.colorado.edu | 0 | | |
| 128.138.99.149 | club-106-adm.colorado.edu | 0 | | |
| 128.138.99.150 | club99-150.colorado.edu | 0 | | |
| 128.138.99.151 | club99-151.colorado.edu | 0 | | |
| 128.138.99.152 | club99-152.colorado.edu | 0 | | |
| 128.138.99.153 | club99-153.colorado.edu | 0 | | |
| 128.138.99.154 | club99-154.colorado.edu | 0 | | |
| 128.138.99.155 | club99-155.colorado.edu | 0 | | |
| 128.138.99.156 | club99-156.colorado.edu | 0 | | |
| 128.138.99.157 | club99-157.colorado.edu | 0 | | |
| 128.138.99.158 | fm-99-158.colorado.edu | 0 | | |
| 128.138.99.159 | fm-99-159.colorado.edu | 0 | | |
| 128.138.99.160 | club99-160.colorado.edu | 0 | | |
| 128.138.99.161 | cupresents.colorado.edu | 0 | | |
| 128.138.99.162 | club99-162.colorado.edu | 0 | | |
| 128.138.99.163 | cu-uclub-99-163.colorado.edu | 0 | | |
| 128.138.99.164 | cu-uclub-99-164.colorado.edu | 0 | | |
| 128.138.99.165 | club99-165.colorado.edu | 0 | | |
| 128.138.99.166 | — | 0 | | |
| 128.138.99.167 | — | 0 | | |
| 128.138.99.168 | — | 0 | | |
| 128.138.99.169 | — | 0 | | |
| 128.138.99.170 | club99-170-dhcp.colorado.edu | 0 | | |
| 128.138.99.171 | club99-171-dhcp.colorado.edu | 0 | | |
| 128.138.99.172 | club99-172-dhcp.colorado.edu | 0 | | |
| 128.138.99.173 | club99-173-dhcp.colorado.edu | 0 | | |
| 128.138.99.174 | club99-174-dhcp.colorado.edu | 0 | | |
| 128.138.99.175 | club99-175-dhcp.colorado.edu | 0 | | |
| 128.138.99.176 | club99-176-dhcp.colorado.edu | 0 | | |
| 128.138.99.177 | club99-177-dhcp.colorado.edu | 0 | | |
| 128.138.99.178 | club99-178-dhcp.colorado.edu | 0 | | |
| 128.138.99.179 | club99-179-dhcp.colorado.edu | 0 | | |
| 128.138.99.180 | club99-180-dhcp.colorado.edu | 0 | | |
| 128.138.99.181 | club99-181-dhcp.colorado.edu | 0 | | |
| 128.138.99.182 | club99-182-dhcp.colorado.edu | 0 | | |
| 128.138.99.183 | club99-183-dhcp.colorado.edu | 0 | | |
| 128.138.99.184 | club99-184-dhcp.colorado.edu | 0 | | |
| 128.138.99.185 | club99-185-dhcp.colorado.edu | 0 | | |
| 128.138.99.186 | club99-186-dhcp.colorado.edu | 0 | | |
| 128.138.99.187 | club99-187-dhcp.colorado.edu | 0 | | |
| 128.138.99.188 | club99-188-dhcp.colorado.edu | 0 | | |
| 128.138.99.189 | club99-189-dhcp.colorado.edu | 0 | | |
| 128.138.99.190 | club99-190-dhcp.colorado.edu | 0 | | |
| 128.138.99.191 | club99-191-dhcp.colorado.edu | 0 | | |
| 128.138.99.192 | club99-192-dhcp.colorado.edu | 0 | | |
| 128.138.99.193 | club99-193-dhcp.colorado.edu | 0 | | |
| 128.138.99.194 | club99-194-dhcp.colorado.edu | 0 | | |
| 128.138.99.195 | club99-195-dhcp.colorado.edu | 0 | | |
| 128.138.99.196 | club99-196-dhcp.colorado.edu | 0 | | |
| 128.138.99.197 | club99-197-dhcp.colorado.edu | 0 | | |
| 128.138.99.198 | club99-198-dhcp.colorado.edu | 0 | | |
| 128.138.99.199 | club99-199-dhcp.colorado.edu | 0 | | |
| 128.138.99.200 | club99-200-dhcp.colorado.edu | 0 | | |
| 128.138.99.201 | club99-201-dhcp.colorado.edu | 0 | | |
| 128.138.99.202 | club99-202-dhcp.colorado.edu | 0 | | |
| 128.138.99.203 | club99-203-dhcp.colorado.edu | 0 | | |
| 128.138.99.204 | club99-204-dhcp.colorado.edu | 0 | | |
| 128.138.99.205 | club99-205-dhcp.colorado.edu | 0 | | |
| 128.138.99.206 | club99-206-dhcp.colorado.edu | 0 | | |
| 128.138.99.207 | club99-207-dhcp.colorado.edu | 0 | | |
| 128.138.99.208 | club99-208-dhcp.colorado.edu | 0 | | |
| 128.138.99.209 | club99-209-dhcp.colorado.edu | 0 | | |
| 128.138.99.210 | club99-210-dhcp.colorado.edu | 0 | | |
| 128.138.99.211 | club99-211-dhcp.colorado.edu | 0 | | |
| 128.138.99.212 | club99-212-dhcp.colorado.edu | 0 | | |
| 128.138.99.213 | club99-213-dhcp.colorado.edu | 0 | | |
| 128.138.99.214 | club99-214-dhcp.colorado.edu | 0 | | |
| 128.138.99.215 | club99-215-dhcp.colorado.edu | 0 | | |
| 128.138.99.216 | club99-216-dhcp.colorado.edu | 0 | | |
| 128.138.99.217 | club99-217-dhcp.colorado.edu | 0 | | |
| 128.138.99.218 | club99-218-dhcp.colorado.edu | 0 | | |
| 128.138.99.219 | club99-219-dhcp.colorado.edu | 0 | | |
| 128.138.99.220 | club99-220-dhcp.colorado.edu | 0 | | |
| 128.138.99.221 | club99-221-dhcp.colorado.edu | 0 | | |
| 128.138.99.222 | club99-222-dhcp.colorado.edu | 0 | | |
| 128.138.99.223 | club99-223-dhcp.colorado.edu | 0 | | |
| 128.138.99.224 | club99-224-dhcp.colorado.edu | 0 | | |
| 128.138.99.225 | club99-225-dhcp.colorado.edu | 0 | | |
| 128.138.99.226 | club99-226-dhcp.colorado.edu | 0 | | |
| 128.138.99.227 | club99-227-dhcp.colorado.edu | 0 | | |
| 128.138.99.228 | club99-228-dhcp.colorado.edu | 0 | | |
| 128.138.99.229 | club99-229-dhcp.colorado.edu | 0 | | |
| 128.138.99.230 | club99-230-dhcp.colorado.edu | 0 | | |
| 128.138.99.231 | club99-231-dhcp.colorado.edu | 0 | | |
| 128.138.99.232 | club99-232-dhcp.colorado.edu | 0 | | |
| 128.138.99.233 | club99-233-dhcp.colorado.edu | 0 | | |
| 128.138.99.234 | club99-234-dhcp.colorado.edu | 0 | | |
| 128.138.99.235 | club99-235-dhcp.colorado.edu | 0 | | |
| 128.138.99.236 | club99-236-dhcp.colorado.edu | 0 | | |
| 128.138.99.237 | club99-237-dhcp.colorado.edu | 0 | | |
| 128.138.99.238 | club99-238-dhcp.colorado.edu | 0 | | |
| 128.138.99.239 | club99-239-dhcp.colorado.edu | 0 | | |
| 128.138.99.240 | club99-240-dhcp.colorado.edu | 0 | | |
| 128.138.99.241 | club99-241-dhcp.colorado.edu | 0 | | |
| 128.138.99.242 | club99-242-dhcp.colorado.edu | 0 | | |
| 128.138.99.243 | club99-243-dhcp.colorado.edu | 0 | | |
| 128.138.99.244 | club99-244-dhcp.colorado.edu | 0 | | |
| 128.138.99.245 | club99-245-dhcp.colorado.edu | 0 | | |
| 128.138.99.246 | club99-246-dhcp.colorado.edu | 0 | | |
| 128.138.99.247 | club99-247-dhcp.colorado.edu | 0 | | |
| 128.138.99.248 | club99-248-dhcp.colorado.edu | 0 | | |
| 128.138.99.249 | club99-249-dhcp.colorado.edu | 0 | | |
| 128.138.99.250 | club99-250-dhcp.colorado.edu | 0 | | |
| 128.138.99.251 | club99-251-dhcp.colorado.edu | 0 | | |
| 128.138.99.252 | club99-252-dhcp.colorado.edu | 0 | | |
| 128.138.99.253 | club99-253-dhcp.colorado.edu | 0 | | |
| 128.138.99.254 | club99-254-dhcp.colorado.edu | 0 | | |
| 128.138.99.255 | — | 0 | | |
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
$
traceroute -a -n -q1 -m7 128.138.99.115
traceroute to 128.138.99.115 (128.138.99.115): 7 hops max, 52 byte packets
2 *
5 *
6 *
7 *
Measurement taken from 
IPinfo ProbeNet in Frankfurt am Main, DE
IPinfo ProbeNet in Frankfurt am Main, DEOn