| 128.138.0.0/16 | University of Colorado Boulder | 66K | US |
| 129.19.192.0/18 | Colorado State University | 16K | US |
| 198.11.16.0/20 | University of Colorado - Boulder | 4.1K | US |
| 146.5.20.0/22 | National Solar Observatory at University of Colorado at Boul | 1K | US |
| 192.12.238.0/24 | University of Colorado at Boulder | 256 | US |
| 192.12.240.0/24 | University of Colorado at Boulder | 256 | US |
| 192.12.241.0/24 | University of Colorado at Boulder | 256 | US |
| 192.12.242.0/24 | University of Colorado at Boulder | 256 | US |
| 192.12.244.0/24 | University of Colorado at Boulder | 256 | US |
| 192.12.245.0/24 | University of Colorado at Boulder | 256 | US |
| 198.59.51.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.52.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.54.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.55.0/24 | Colorado State University (CSU) Fort Collins, CO, USA http:/ | 256 | US |
| 198.59.7.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.70.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.81.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.82.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 198.59.83.0/24 | University of Colorado at Boulder (CU) Boulder, CO, USA http | 256 | US |
| 204.228.80.0/24 | Westnet CO, USA | 256 | US |