Data as of Nov 8, 2026
143.107.3.0/24
9 residential-proxy exits · 30 daysUniversidade de Sao Paulo
Residential-proxy exits
Proxy exits
9
3.5% of its addresses · 30 days
Providers
33
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
365 observations
Proxy providers listing exits
- 2Captcha
- 711Proxy
- AnyIP
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- CliProxy
- EnigmaProxy
- FloppyData
- GSocks
- GonzoProxy
- IPPeak
- Infatica
- InfiniteProxies
- LemonBright
- MangoProxy
- NSocks
- NodeProxy
- NovaProxy
- Novada
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyRack
- Proxyma
- RainProxy
- Shifter
- Smartproxy
- Thordata
- VantageProxies
- VitalExclusive
- VitalProxy
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 143.107.0.0/16 since Jun 2021 | AS28571 | Business | 261 14 always on |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS28571
BR
- Name
- Universidade de Sao Paulo
- Type
- Education
- Registered
- Dec 19, 2007
- Domain
- usp.br
- Website
- www.usp.br
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2014
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 143.107.3.0/24 | AS28571 | /24 | LACNIC | RPKI valid |
| 143.107.0.0/16 | AS28571 | /16 | LACNIC | Too specific |
Whois
Registration for this announcement
- Range
- 143.
107. 0. 0/ 16 - Netname
- 200229
- Registrant
- Universidade de Sao Paulo
- Registrant country
- BR
- Organization
- Universidade de Sao Paulo (63025530000104)
- Handle
- 143.
107. 0. 0/ 16 - Created
- Mar 26, 1990
- RIR
- LACNIC
- Country
- BR
- Delegated
- Mar 26, 1990
- Status
- assigned
Report abuse
Abuse contact
- security@
usp. br - Name
- CSIRT USP / Grupo de Segurança em TI
- Handle
- CUGST