Data as of Nov 3, 2026
131.221.0.0/22
1 residential-proxy exit · 30 daysUniversidad Nacional del Centro de la Provincia de Buenos Aires
Residential-proxy exits
Proxy exits
1
0.10% of its addresses · 30 days
Spread
1 of 4
/24s with at least one exit
Providers
19
selling exits here
Oct 4, 2026 – Nov 2, 2026
Exits seen per day
273 observations
Proxy providers listing exits
- AnyIP
- BottingTools
- BuyingProxy
- CatProxies
- Datarama
- Decodo
- Evomi
- FastProxy
- IPRoyal
- InfiniteProxies
- LemonBright
- MagneticProxy
- Novada
- Oxylabs
- ProxyGeo
- ProxyRack
- Proxying
- Thordata
- VitalExclusive
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS61496
AR
- Name
- Universidad Nacional del Centro de la Provincia de Buenos Aires
- Type
- Education
- Registered
- Nov 11, 2014
- Domain
- unicen.edu.ar
- Website
- www.unicen.edu.ar
- 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
- Dec 2014
- Current origin since
- Dec 2014 · 12 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 131.221.0.0/22 | AS61496 | /22 | LACNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 131.221.0.0/22
- Netname
- AR-UNCL-LACNIC
- Registrant
- Universidad Nacional del Centro de la Provincia de Buenos Aires
- Registrant country
- AR
- Organization
- Not stated by the registry
- Type
- assigned
- Created
- Oct 10, 2014
- RIR
- LACNIC
- Country
- AR
- Delegated
- Oct 10, 2014
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- Martin Bradaschia
- Phone
- +54 24944385505 [0000]
- Handle
- MAB212