Data as of Nov 5, 2026
129.236.0.0/16
272 residential-proxy exits · 30 daysColumbia University · space held by Lamont-Doherty Earth Observatory of Columbia University
Residential-proxy exits
Proxy exits
272
0.42% of its addresses · 30 days
Always-on exits
3
1.1% of its exits
Spread
11 of 256
/24s with at least one exit
Providers
71
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
14K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 129.236.228.0/24 | 2 | 37 | |
| 129.236.161.0/24 | 1 | 2 | |
| 129.236.230.0/24 | 0 | 39 | |
| 129.236.229.0/24 | 0 | 36 | |
| 129.236.227.0/24 | 0 | 34 | |
| 129.236.224.0/24 | 0 | 32 | |
| 129.236.225.0/24 | 0 | 32 | |
| 129.236.226.0/24 | 0 | 31 | |
| 129.236.231.0/24 | 0 | 27 | |
| 129.236.255.0/24 | 0 | 3 | |
| 129.236.6.0/24 | 0 | 2 |
Proxy providers listing exits
- 2Captcha
- 711Proxy
- Ake.net
- AnyIP
- B2Proxy
- BartProxies
- BirdProxies
- BlurPath
- BottingTools
- BuyingProxy
- ByteProxies
- Byteful
- CatProxies
- CliProxy
- ColaProxy
- DataImpulse
- Datarama
- Decodo
- EZProxies
- EnigmaProxy
- Evomi
- FastProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- Geonode
- GhostConnect
- GloryCloud
- GonzoProxy
- HideProxy
- IPFly
- IPPeak
- Infatica
- InfiniteProxies
- KocerRoxy
- LemonBright
- LemonLabs
- LemonPrime
- LudaxProxy
- MangoProxy
- MoMoProxy
- NextProxy
- NodeMaven
- NodeProxy
- NovProxy
- NovaProxy
- Oxylabs
- PrivateByte
- ProxiesVision
- Proxio
- Proxiware
- Proxy-Seller
- Proxy4U
- ProxyEmpire
- ProxyGeo
- ProxyHat
- ProxyRack
- Proxying
- Proxyma
- PuraRoute
- RainProxy
- ResiProxies
- Shifter
- Thordata
- TrueProxies
- VantageProxies
- VitalExclusive
- VitalProxy
- WealthProxies
Network & registry
Origin network
AS14
US
- Name
- Columbia University
- Type
- Education
- Domain
- columbia.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS14 | RADB | CU-NET-129-236-0-0 | MAINT-AS14 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 129.
236. 0. 0/ 16 - Netname
- LDGO-NET
- Registrant
- Lamont-Doherty Earth Observatory of Columbia University
- Organization
- Lamont-Doherty Earth Observatory of Columbia University (LDGO-Z)
- Org address
- Route 9W, Palisades, NY, 10964
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-129-236-0-0-1
- Parent
- NET-129-0-0-0-0
- Created
- Mar 16, 1988
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 16, 1988
- Status
- assigned
Report abuse
Abuse contact
- noc@
columbia. edu - Name
- Columbia University Computer Operations
- Phone
- +1-212-854-1919
- Handle
- CU-NOC-ARIN