Data as of Nov 10, 2026
129.19.136.0/21
18 residential-proxy exits · 30 daysFort Lewis College · space held by Colorado State University
Announced by
Type
Business
Recent change
Reallocated Jul 30, 2026
to University Corporation for Atmospheric Research by Colorado State University
Residential-proxy exits
Proxy exits
18
0.88% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
33
selling exits here
Oct 11, 2026 – Nov 9, 2026
Exits seen per day
6.5K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 129.19.136.0/24 | 0 | 12 | |
| 129.19.142.0/24 | 0 | 5 |
Proxy providers listing exits
- 9Proxy
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- CliProxy
- ColaProxy
- EnigmaProxy
- Evomi
- FloppyData
- GSocks
- Geonix
- Geonode
- GloryCloud
- IPPeak
- Infatica
- InfiniteProxies
- LemonLabs
- LemonPrime
- MangoProxy
- NodeProxy
- NovaProxy
- Oxylabs
- PROXYSCRAPE
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyGeo
- Proxyma
- RainProxy
- Shifter
- Thordata
- VitalExclusive
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 129.19.0.0/16 since Oct 2009 | AS14041 | Business | 58 4 always on | Colorado State University |
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 129.19.136.0/24 since Dec 2019 | AS54393 | Business | 12 | Colorado State University via University Corporation for Atmospheric Research | |
| 129.19.137.0/24 since Jul 2018 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research | ||
| 129.19.138.0/24 since Jul 2018 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research | ||
| 129.19.139.0/24 since Jul 2018 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research | ||
| 129.19.140.0/24 since Jul 2018 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research | ||
| 129.19.141.0/24 since Jul 2018 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research | ||
| 129.19.142.0/24 since Dec 2019 | AS54393 | Business | 5 | Colorado State University via University Corporation for Atmospheric Research | |
| 129.19.143.0/24 since Nov 2025 | AS54393 | Business | Colorado State University via University Corporation for Atmospheric Research |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 129.19.0.0/16 | 65,536 | WESTNET | Colorado State University (CSU-2-Z) · US | Direct Allocation | Jul 8, 1987 | dns. |
| └ 129.19.128.0/18 | 16,384 | FRGP-PARTICIPANT-ASSIGNMENTS-01 | University Corporation for Atmospheric Research (UCAR-1) · US | Reallocated | Jul 30, 2026 | abuse@ |
| └ 129.19.128.0/20 | 4,096 | WESTNET-FORTLEWIS | Fort Lewis College (FLC) · US | Reassigned | Jul 30, 2026 | — |
Network & registry
Announced by
Covering announcement 129.19.128.0/20
- Prefix
- 129.19.128.0/20
- Announced by
- AS54393 Fort Lewis College
- Type
- Business
- Proxy exits
- 21
- RPKI
- RPKI valid
- Netname
- WESTNET-FORTLEWIS
- Registrant
- Fort Lewis College
- RIR
- ARIN
Registry
Holder
- Organization
- Colorado State University
- Handle
- CSU-2-Z
- Range
- 129.
19. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jul 8, 1987
- Legacy
- yes
- Reallocated to
- University Corporation for Atmospheric Research (UCAR-1)
- Reallocated range
- 129.
19. 128. 0/ 18 - Reallocated
- Jul 30, 2026
Origin network
AS54393
US
- Name
- Fort Lewis College
- Type
- Education
- Registered
- Feb 7, 2012
- Domain
- fortlewis.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
129.19.128.0/20
Routing history
- Pattern
- Rotating
- First seen
- Aug 2008
- Current origin since
- Aug 2025 · 1.3 yr
- Origin networks
- 5
- Last change of origin
- Aug 2025
Recorded history
History
- Handoffs
- 5
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 129.19.128.0/20 | AS54393 | /24 | ARIN | RPKI valid |
| 129.19.128.0/20 | AS6653 | /20 | ARIN | Another network |
| 129.19.0.0/16 | AS14041 | /16 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 129.
19. 128. 0/ 20 - Netname
- WESTNET-FORTLEWIS
- Registrant
- Fort Lewis College
- Organization
- Fort Lewis College (FLC)
- Org address
- 150A Admin. Bldg, Computer Center, Durango, CO, 81301
- Org country
- US
- Type
- Reassigned
- Handle
- NET-129-19-128-0-2
- Parent
- NET-129-19-128-0-1
- Created
- Jul 30, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 8, 1987
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ucar. edu - Name
- Abuse
- Phone
- +1-307-996-4300
- Handle
- ABUSE18-ARIN