Data as of Nov 3, 2026
Autonomous system
AS104
University of Colorado at Boulder
Announces 91,136 addresses in 21 prefixes. None of it is anonymizer space.
Type
Education
US
Proxy activity, 30 days
232 exits
Announced prefixes
| Prefix | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|
| 128.138.0.0/16 since May 2005 | Business | 216 4 always on | University of Colorado | |
| 129.19.192.0/18 since Nov 2024 | Business | Colorado State University via University of Colorado Boulder | ||
| 129.19.240.0/20 since Aug 2026 | Business | Colorado State University via University of Colorado Boulder | ||
| 146.5.20.0/22 since Nov 2016 | Business | National Solar Observatory | ||
| 192.12.238.0/24 since Jul 2010 | Business | University of Colorado | ||
| 192.12.240.0/24 since May 2005 | Business | University of Colorado | ||
| 192.12.241.0/24 since Aug 2023 | Business | University of Colorado | ||
| 192.12.242.0/24 since Jul 2010 | Business | University of Colorado | ||
| 192.12.244.0/24 since Apr 2021 | Business | University of Colorado | ||
| 192.12.245.0/24 since Jul 2010 | Business | University of Colorado | ||
| 198.11.16.0/20 since May 2005 | Business | 16 | University of Colorado Boulder | |
| 198.59.7.0/24 since May 2005 | Business | University of Colorado Boulder | ||
| 198.59.51.0/24 since Feb 2018 | Business | University of Colorado Boulder | ||
| 198.59.52.0/24 since Mar 2018 | Business | University of Colorado Boulder | ||
| 198.59.54.0/24 since May 2007 | Business | University of Colorado Boulder | ||
| 198.59.55.0/24 since May 2005 | Business | University of Colorado Boulder | ||
| 198.59.70.0/24 since Jun 2020 | Business | University of Colorado Boulder | ||
| 198.59.81.0/24 since May 2005 | Business | University of Colorado Boulder | ||
| 198.59.82.0/24 since May 2005 | Business | University of Colorado Boulder | ||
| 198.59.83.0/24 since May 2005 | Business | University of Colorado Boulder | ||
| 204.228.80.0/24 since May 2005 | Business | University of Colorado Boulder |
Residential-proxy exposure
Always-on exits
4
1.7% of its exits
Spread
8
/24s with at least one exit
Providers
73
selling exits here
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 128.138.65.0/24 | 2 | 210 | |
| 128.138.37.0/24 | 1 | 2 | |
| 128.138.10.0/24 | 1 | 1 | |
| 198.11.28.0/24 | 0 | 15 | |
| 128.138.13.0/24 | 0 | 1 | |
| 128.138.64.0/24 | 0 | 1 | |
| 128.138.141.0/24 | 0 | 1 | |
| 198.11.30.0/24 | 0 | 1 |
Proxy providers listing exits
- 2Captcha
- 711Proxy
- 9Proxy
- Ake.net
- AnyIP
- B2Proxy
- BartProxies
- BirdProxies
- BottingTools
- Bright Data
- BuyingProxy
- ByteProxies
- Byteful
- CatProxies
- CliProxy
- ColaProxy
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- Geonode
- GhostConnect
- GloryCloud
- GonzoProxy
- HideProxy
- HydraProxy
- IPFly
- IPPeak
- IPRoyal
- Infatica
- InfiniteProxies
- LemonBright
- LemonLabs
- LemonPrime
- LightningProxies
- LudaxProxy
- MangoProxy
- MoMoProxy
- NextProxy
- NodeMaven
- NodeProxy
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PrivateProxy
- Proxies.fo
- ProxiesVision
- Proxio
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyGeo
- ProxyRack
- Proxying
- Proxyma
- PuraRoute
- RainProxy
- RapidProxy
- RealProxy
- ResiProxies
- Shifter
- Thordata
- ThunderProxy
- VantageProxies
- VitalExclusive
- WealthProxies
Proxy activity
Oct 4, 2026 – Nov 2, 2026
AS104, day by day
26K observations
Network & history
Profile
- Registered
- Apr 9, 1987
- Domain
- colorado.edu
- Industry
- Colleges, Universities, and Professional Schools
Routing patterns
How its announcements have moved
Arrivals