Summary
| ASN | AS104 University of Colorado at Boulder |
| BGP | 128.138.0.0/16 |
| IPs with RDNS | 237 |
| Hosted Domains | 0 |
| Pingable IPs | 0 |
| Router IPs | 0 |
| 128.138.115.0 | — | 0 |  | |
| 128.138.115.1 | engr2-gw-pdps.colorado.edu | 0 | | |
| 128.138.115.2 | — | 0 | | |
| 128.138.115.3 | pdps115-3.colorado.edu | 0 | | |
| 128.138.115.4 | fiber115-176a-4.colorado.edu | 0 | | |
| 128.138.115.5 | pdps115-5.colorado.edu | 0 | | |
| 128.138.115.6 | ehskronosclk1.colorado.edu | 0 | | |
| 128.138.115.7 | prkbusoffice.colorado.edu | 0 | | |
| 128.138.115.8 | — | 0 | | |
| 128.138.115.9 | dps.colorado.edu | 0 | | |
| 128.138.115.10 | ptsserv3.colorado.edu | 0 | | |
| 128.138.115.11 | ucpd11.colorado.edu | 0 | | |
| 128.138.115.12 | ucpd12.colorado.edu | 0 | | |
| 128.138.115.13 | pdpskronosclk1.colorado.edu | 0 | | |
| 128.138.115.14 | ucpd14.colorado.edu | 0 | | |
| 128.138.115.15 | transportation.colorado.edu | 0 | | |
| 128.138.115.16 | ucpd16.colorado.edu | 0 | | |
| 128.138.115.17 | ucpd17.colorado.edu | 0 | | |
| 128.138.115.18 | ucpd18.colorado.edu | 0 | | |
| 128.138.115.19 | ucpd19.colorado.edu | 0 | | |
| 128.138.115.20 | ucpd20.colorado.edu | 0 | | |
| 128.138.115.21 | ucpd21.colorado.edu | 0 | | |
| 128.138.115.22 | pdps115-22.colorado.edu | 0 | | |
| 128.138.115.23 | ucpd23.colorado.edu | 0 | | |
| 128.138.115.24 | ucpd24.colorado.edu | 0 | | |
| 128.138.115.25 | ucpd25.colorado.edu | 0 | | |
| 128.138.115.26 | ucpd26.colorado.edu | 0 | | |
| 128.138.115.27 | ucpd27.colorado.edu | 0 | | |
| 128.138.115.28 | pdpskronos.colorado.edu | 0 | | |
| 128.138.115.29 | ucpd29.colorado.edu | 0 | | |
| 128.138.115.30 | ucpd30.colorado.edu | 0 | | |
| 128.138.115.31 | ucpd31.colorado.edu | 0 | | |
| 128.138.115.32 | ucpd32.colorado.edu | 0 | | |
| 128.138.115.33 | ucpd33.colorado.edu | 0 | | |
| 128.138.115.34 | prklexmark.colorado.edu | 0 | | |
| 128.138.115.35 | ucpd35.colorado.edu | 0 | | |
| 128.138.115.36 | ucpd36.colorado.edu | 0 | | |
| 128.138.115.37 | ucpd37.colorado.edu | 0 | | |
| 128.138.115.38 | ucpd38.colorado.edu | 0 | | |
| 128.138.115.39 | ucpd39.colorado.edu | 0 | | |
| 128.138.115.40 | ucpd40.colorado.edu | 0 | | |
| 128.138.115.41 | ucpd41.colorado.edu | 0 | | |
| 128.138.115.42 | ucpd42.colorado.edu | 0 | | |
| 128.138.115.43 | ucpd43.colorado.edu | 0 | | |
| 128.138.115.44 | ucpd44.colorado.edu | 0 | | |
| 128.138.115.45 | ucpd45.colorado.edu | 0 | | |
| 128.138.115.46 | pdps115-46.colorado.edu | 0 | | |
| 128.138.115.47 | ucpd47.colorado.edu | 0 | | |
| 128.138.115.48 | prkwkclzr.colorado.edu | 0 | | |
| 128.138.115.49 | ucpd49.colorado.edu | 0 | | |
| 128.138.115.50 | pdps115-50.colorado.edu | 0 | | |
| 128.138.115.51 | dpsforms.colorado.edu | 0 | | |
| 128.138.115.52 | ucpd52.colorado.edu | 0 | | |
| 128.138.115.53 | ucpd53.colorado.edu | 0 | | |
| 128.138.115.54 | ucpd54.colorado.edu | 0 | | |
| 128.138.115.55 | pdps115-55.colorado.edu | 0 | | |
| 128.138.115.56 | ucpd56.colorado.edu | 0 | | |
| 128.138.115.57 | ucpd57.colorado.edu | 0 | | |
| 128.138.115.58 | ucpd58.colorado.edu | 0 | | |
| 128.138.115.59 | ucpd59.colorado.edu | 0 | | |
| 128.138.115.60 | ucpd60.colorado.edu | 0 | | |
| 128.138.115.61 | ucpd61.colorado.edu | 0 | | |
| 128.138.115.62 | ucpd62.colorado.edu | 0 | | |
| 128.138.115.63 | ucpd63.colorado.edu | 0 | | |
| 128.138.115.64 | ucpdkronos2.colorado.edu | 0 | | |
| 128.138.115.65 | ucpd65.colorado.edu | 0 | | |
| 128.138.115.66 | ucpd66.colorado.edu | 0 | | |
| 128.138.115.67 | ucpd67.colorado.edu | 0 | | |
| 128.138.115.68 | ucpd68.colorado.edu | 0 | | |
| 128.138.115.69 | ucpd69.colorado.edu | 0 | | |
| 128.138.115.70 | test1.colorado.edu | 0 | | |
| 128.138.115.71 | test2.colorado.edu | 0 | | |
| 128.138.115.72 | ucpd72.colorado.edu | 0 | | |
| 128.138.115.73 | ucpd73.colorado.edu | 0 | | |
| 128.138.115.74 | nwslive.colorado.edu | 0 | | |
| 128.138.115.75 | ucpd75.colorado.edu | 0 | | |
| 128.138.115.76 | ucpd76.colorado.edu | 0 | | |
| 128.138.115.77 | ucpd77.colorado.edu | 0 | | |
| 128.138.115.78 | nwstest.colorado.edu | 0 | | |
| 128.138.115.79 | ucpd79.colorado.edu | 0 | | |
| 128.138.115.80 | ucpd80.colorado.edu | 0 | | |
| 128.138.115.81 | ucpd81.colorado.edu | 0 | | |
| 128.138.115.82 | pdpsadminxerox.colorado.edu | 0 | | |
| 128.138.115.83 | pol-com-nice.colorado.edu | 0 | | |
| 128.138.115.84 | ucpd84.colorado.edu | 0 | | |
| 128.138.115.85 | pdps115-85.colorado.edu | 0 | | |
| 128.138.115.86 | pol-com-inform.colorado.edu | 0 | | |
| 128.138.115.87 | ucpd87.colorado.edu | 0 | | |
| 128.138.115.88 | pdps115-88.colorado.edu | 0 | | |
| 128.138.115.89 | pdps115-89.colorado.edu | 0 | | |
| 128.138.115.90 | ucpd90.colorado.edu | 0 | | |
| 128.138.115.91 | pdps115-91.colorado.edu | 0 | | |
| 128.138.115.92 | pdps115-92.colorado.edu | 0 | | |
| 128.138.115.93 | communitysafety.colorado.edu | 0 | | |
| 128.138.115.94 | pdps115-94.colorado.edu | 0 | | |
| 128.138.115.95 | pdps115-95.colorado.edu | 0 | | |
| 128.138.115.96 | pdps115-96.colorado.edu | 0 | | |
| 128.138.115.97 | ucpd97.colorado.edu | 0 | | |
| 128.138.115.98 | ucpd98.colorado.edu | 0 | | |
| 128.138.115.99 | nwssan.colorado.edu | 0 | | |
| 128.138.115.100 | ucpd100.colorado.edu | 0 | | |
| 128.138.115.101 | prkadminucpd.colorado.edu | 0 | | |
| 128.138.115.102 | ehsc115-102.colorado.edu | 0 | | |
| 128.138.115.103 | pdps115-103.colorado.edu | 0 | | |
| 128.138.115.104 | repage.colorado.edu | 0 | | |
| 128.138.115.105 | pdps115-105.colorado.edu | 0 | | |
| 128.138.115.106 | pdps115-106.colorado.edu | 0 | | |
| 128.138.115.107 | omega.colorado.edu | 0 | | |
| 128.138.115.108 | ucpd108.colorado.edu | 0 | | |
| 128.138.115.109 | ucpd109.colorado.edu | 0 | | |
| 128.138.115.110 | ucpd110.colorado.edu | 0 | | |
| 128.138.115.111 | rodeo.colorado.edu | 0 | | |
| 128.138.115.112 | pdps-171-akcp1.colorado.edu | 0 | | |
| 128.138.115.113 | psoserv.colorado.edu | 0 | | |
| 128.138.115.114 | ucpd114.colorado.edu | 0 | | |
| 128.138.115.115 | pdps115-115-dhcp.colorado.edu | 0 | | |
| 128.138.115.116 | pdps115-116-dhcp.colorado.edu | 0 | | |
| 128.138.115.117 | pdps115-117-dhcp.colorado.edu | 0 | | |
| 128.138.115.118 | pdps115-118-dhcp.colorado.edu | 0 | | |
| 128.138.115.119 | pdps115-119-dhcp.colorado.edu | 0 | | |
| 128.138.115.120 | pdps115-120-dhcp.colorado.edu | 0 | | |
| 128.138.115.121 | pdps115-121-dhcp.colorado.edu | 0 | | |
| 128.138.115.122 | pdps115-122-dhcp.colorado.edu | 0 | | |
| 128.138.115.123 | pdps115-123-dhcp.colorado.edu | 0 | | |
| 128.138.115.124 | pdps115-124-dhcp.colorado.edu | 0 | | |
| 128.138.115.125 | pdps115-125-dhcp.colorado.edu | 0 | | |
| 128.138.115.126 | pdps115-126-dhcp.colorado.edu | 0 | | |
| 128.138.115.127 | pdps115-127-dhcp.colorado.edu | 0 | | |
| 128.138.115.128 | pdps115-128-dhcp.colorado.edu | 0 | | |
| 128.138.115.129 | pdps115-129-dhcp.colorado.edu | 0 | | |
| 128.138.115.130 | pdps115-130-dhcp.colorado.edu | 0 | | |
| 128.138.115.131 | ucpd131.colorado.edu | 0 | | |
| 128.138.115.132 | ucpd132.colorado.edu | 0 | | |
| 128.138.115.133 | parkingfms2.colorado.edu | 0 | | |
| 128.138.115.134 | ucpd134.colorado.edu | 0 | | |
| 128.138.115.135 | ptsdomctl.colorado.edu | 0 | | |
| 128.138.115.136 | hpprkopr.colorado.edu | 0 | | |
| 128.138.115.137 | hpprkadm.colorado.edu | 0 | | |
| 128.138.115.138 | ehsc-220-wiav.colorado.edu | 0 | | |
| 128.138.115.139 | radio.colorado.edu | 0 | | |
| 128.138.115.140 | pdps115-140.colorado.edu | 0 | | |
| 128.138.115.141 | prkcbarker.colorado.edu | 0 | | |
| 128.138.115.142 | pdpskronosclk2.colorado.edu | 0 | | |
| 128.138.115.143 | ptswebserv.colorado.edu | 0 | | |
| 128.138.115.144 | prkbusofcwdoprtsrv1.colorado.edu | 0 | | |
| 128.138.115.145 | prkbusofcprtsrv1.colorado.edu | 0 | | |
| 128.138.115.146 | pdps115-146.colorado.edu | 0 | | |
| 128.138.115.147 | — | 0 | | |
| 128.138.115.148 | pdps115-148.colorado.edu | 0 | | |
| 128.138.115.149 | pdps115-149.colorado.edu | 0 | | |
| 128.138.115.150 | pdps115-150.colorado.edu | 0 | | |
| 128.138.115.151 | — | 0 | | |
| 128.138.115.152 | prkpermitprt.colorado.edu | 0 | | |
| 128.138.115.153 | pol-com-serv.colorado.edu | 0 | | |
| 128.138.115.154 | pdps115-154.colorado.edu | 0 | | |
| 128.138.115.155 | pdps115-155.colorado.edu | 0 | | |
| 128.138.115.156 | — | 0 | | |
| 128.138.115.157 | ehskronosclk2.colorado.edu | 0 | | |
| 128.138.115.158 | — | 0 | | |
| 128.138.115.159 | — | 0 | | |
| 128.138.115.160 | — | 0 | | |
| 128.138.115.161 | pdps115-161-dhcp.colorado.edu | 0 | | |
| 128.138.115.162 | pdps115-162-dhcp.colorado.edu | 0 | | |
| 128.138.115.163 | pdps115-163-dhcp.colorado.edu | 0 | | |
| 128.138.115.164 | pdps115-164-dhcp.colorado.edu | 0 | | |
| 128.138.115.165 | pdps115-165-dhcp.colorado.edu | 0 | | |
| 128.138.115.166 | pdps115-166-dhcp.colorado.edu | 0 | | |
| 128.138.115.167 | pdps115-167-dhcp.colorado.edu | 0 | | |
| 128.138.115.168 | pdps115-168-dhcp.colorado.edu | 0 | | |
| 128.138.115.169 | pdps115-169-dhcp.colorado.edu | 0 | | |
| 128.138.115.170 | pdps115-170-dhcp.colorado.edu | 0 | | |
| 128.138.115.171 | pdps115-171-dhcp.colorado.edu | 0 | | |
| 128.138.115.172 | — | 0 | | |
| 128.138.115.173 | pdps115-173.colorado.edu | 0 | | |
| 128.138.115.174 | — | 0 | | |
| 128.138.115.175 | pdps115-175-dhcp.colorado.edu | 0 | | |
| 128.138.115.176 | pdps115-176-dhcp.colorado.edu | 0 | | |
| 128.138.115.177 | pdps115-177-dhcp.colorado.edu | 0 | | |
| 128.138.115.178 | pdps115-178-dhcp.colorado.edu | 0 | | |
| 128.138.115.179 | pdps115-179-dhcp.colorado.edu | 0 | | |
| 128.138.115.180 | pdps115-180-dhcp.colorado.edu | 0 | | |
| 128.138.115.181 | pdps115-181-dhcp.colorado.edu | 0 | | |
| 128.138.115.182 | pdps115-182-dhcp.colorado.edu | 0 | | |
| 128.138.115.183 | pdps115-183-dhcp.colorado.edu | 0 | | |
| 128.138.115.184 | pdps115-184-dhcp.colorado.edu | 0 | | |
| 128.138.115.185 | pdps115-185-dhcp.colorado.edu | 0 | | |
| 128.138.115.186 | pdps115-186-dhcp.colorado.edu | 0 | | |
| 128.138.115.187 | pdps115-187-dhcp.colorado.edu | 0 | | |
| 128.138.115.188 | pdps115-188-dhcp.colorado.edu | 0 | | |
| 128.138.115.189 | pdps115-189-dhcp.colorado.edu | 0 | | |
| 128.138.115.190 | pdps115-190-dhcp.colorado.edu | 0 | | |
| 128.138.115.191 | — | 0 | | |
| 128.138.115.192 | ucbparkingt.colorado.edu | 0 | | |
| 128.138.115.193 | pdps115-193.colorado.edu | 0 | | |
| 128.138.115.194 | pdps115-194.colorado.edu | 0 | | |
| 128.138.115.195 | — | 0 | | |
| 128.138.115.196 | — | 0 | | |
| 128.138.115.197 | — | 0 | | |
| 128.138.115.198 | pdps115-198.colorado.edu | 0 | | |
| 128.138.115.199 | pdps115-199.colorado.edu | 0 | | |
| 128.138.115.200 | — | 0 | | |
| 128.138.115.201 | pdps115-201.colorado.edu | 0 | | |
| 128.138.115.202 | ehsc115-202.colorado.edu | 0 | | |
| 128.138.115.203 | pdps115-203.colorado.edu | 0 | | |
| 128.138.115.204 | — | 0 | | |
| 128.138.115.205 | pdps115-205.colorado.edu | 0 | | |
| 128.138.115.206 | pdps115-206.colorado.edu | 0 | | |
| 128.138.115.207 | pdps115-207.colorado.edu | 0 | | |
| 128.138.115.208 | pdps115-208.colorado.edu | 0 | | |
| 128.138.115.209 | — | 0 | | |
| 128.138.115.210 | hpbusadm.colorado.edu | 0 | | |
| 128.138.115.211 | pdps115-211-dhcp.colorado.edu | 0 | | |
| 128.138.115.212 | pdps115-212-dhcp.colorado.edu | 0 | | |
| 128.138.115.213 | pdps115-213-dhcp.colorado.edu | 0 | | |
| 128.138.115.214 | pdps115-214-dhcp.colorado.edu | 0 | | |
| 128.138.115.215 | pdps115-215-dhcp.colorado.edu | 0 | | |
| 128.138.115.216 | pdps115-216-dhcp.colorado.edu | 0 | | |
| 128.138.115.217 | pdps115-217-dhcp.colorado.edu | 0 | | |
| 128.138.115.218 | pdps115-218-dhcp.colorado.edu | 0 | | |
| 128.138.115.219 | pdps115-219-dhcp.colorado.edu | 0 | | |
| 128.138.115.220 | pdps115-220-dhcp.colorado.edu | 0 | | |
| 128.138.115.221 | pdps115-221-dhcp.colorado.edu | 0 | | |
| 128.138.115.222 | pdps115-222-dhcp.colorado.edu | 0 | | |
| 128.138.115.223 | pdps115-223-dhcp.colorado.edu | 0 | | |
| 128.138.115.224 | pdps115-224-dhcp.colorado.edu | 0 | | |
| 128.138.115.225 | pdps115-225-dhcp.colorado.edu | 0 | | |
| 128.138.115.226 | pdps115-226-dhcp.colorado.edu | 0 | | |
| 128.138.115.227 | pdps115-227-dhcp.colorado.edu | 0 | | |
| 128.138.115.228 | pdps115-228-dhcp.colorado.edu | 0 | | |
| 128.138.115.229 | pdps115-229-dhcp.colorado.edu | 0 | | |
| 128.138.115.230 | pdps115-230-dhcp.colorado.edu | 0 | | |
| 128.138.115.231 | pdps115-231-dhcp.colorado.edu | 0 | | |
| 128.138.115.232 | pdps115-232-dhcp.colorado.edu | 0 | | |
| 128.138.115.233 | pdps115-233-dhcp.colorado.edu | 0 | | |
| 128.138.115.234 | pdps115-234-dhcp.colorado.edu | 0 | | |
| 128.138.115.235 | pdps115-235-dhcp.colorado.edu | 0 | | |
| 128.138.115.236 | pdps115-236-dhcp.colorado.edu | 0 | | |
| 128.138.115.237 | pdps115-237-dhcp.colorado.edu | 0 | | |
| 128.138.115.238 | pdps115-238-dhcp.colorado.edu | 0 | | |
| 128.138.115.239 | pdps115-239-dhcp.colorado.edu | 0 | | |
| 128.138.115.240 | pdps115-240-dhcp.colorado.edu | 0 | | |
| 128.138.115.241 | pdps115-241-dhcp.colorado.edu | 0 | | |
| 128.138.115.242 | pdps115-242-dhcp.colorado.edu | 0 | | |
| 128.138.115.243 | pdps115-243-dhcp.colorado.edu | 0 | | |
| 128.138.115.244 | pdps115-244-dhcp.colorado.edu | 0 | | |
| 128.138.115.245 | pdps115-245-dhcp.colorado.edu | 0 | | |
| 128.138.115.246 | pdps115-246-dhcp.colorado.edu | 0 | | |
| 128.138.115.247 | pdps115-247-dhcp.colorado.edu | 0 | | |
| 128.138.115.248 | pdps115-248-dhcp.colorado.edu | 0 | | |
| 128.138.115.249 | pdps115-249-dhcp.colorado.edu | 0 | | |
| 128.138.115.250 | pdps115-250-dhcp.colorado.edu | 0 | | |
| 128.138.115.251 | pdps115-251-dhcp.colorado.edu | 0 | | |
| 128.138.115.252 | pdps115-252-dhcp.colorado.edu | 0 | | |
| 128.138.115.253 | pdps115-253-dhcp.colorado.edu | 0 | | |
| 128.138.115.254 | pdps115-254-dhcp.colorado.edu | 0 | | |
| 128.138.115.255 | — | 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 128.138.115.66
traceroute to 128.138.115.66 (128.138.115.66): 9 hops max, 52 byte packets
7 *
8 *
9 *
Measurement taken from 
IPinfo ProbeNet in Fremont, US
IPinfo ProbeNet in Fremont, USOn