University of Colorado at Boulder
BGP inherited
Cluster stats
| Netblocks | 22 |
| All fragments | 32 blocks across 5 clusters |
| Cluster ID | 191593208 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 1 shared RIR contact/maintainer handle |
| Registry names | 1 distinct registrant name across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
22
0 netblocks since 2026-07-05
2026-07-05
peak 22
2026-07-06
IP Ranges (22)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 128.138.0.0/16 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 129.19.192.0/18 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 146.5.20.0/22 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.238.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.240.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.241.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.242.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.244.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 192.12.245.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.11.16.0/20 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.7.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.51.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.52.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.54.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.55.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.70.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.81.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.82.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 198.59.83.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 204.228.80.0/24 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 2001:468:501::/48 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
| 2620:18f::/32 | University of Colorado at Boulder | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: F
how networks compare →
9.1%
of checked blocks have valid RPKI ROA coverage
(2 of 22)
No discrepancies found among checked blocks.
NIC Handles
AS104