Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 200.9.143.0/24 | 256 |
18.4%
|
FUNDACAO OSWALDO ARANHA | BR | Rio de Janeiro | Volta Redonda |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS263890 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 200.9.143.0/24 | 45,058 | 2026-07-25 12:29:21 |
Frequently Asked Questions
What is AS263890?
AS263890 is an Autonomous System Number assigned to FUNDACAO OSWALDO ARANHA. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS263890 announce?
AS263890 announces 256 IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Brazil.
Who operates AS263890?
AS263890 is operated by FUNDACAO OSWALDO ARANHA. The organization is based in Brazil. You can view all IP ranges and related ASNs on the organization page.
What country is AS263890 registered in?
AS263890 is registered in Brazil. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
