Data as of Nov 9, 2026
143.107.248.0/24
No anonymizer space · no proxy exits in 30 daysUniversidade de Sao Paulo
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 143.107.0.0/16 since Jun 2021 | AS28571 | Business | 260 15 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
- Sep 2019
- Current origin since
- Apr 2025 · 1.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 143.107.248.0/24 | 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