AS4201
Oregon State University
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
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
About Oregon State University
Oregon State University (OSU) is a public land-grant research university in Corvallis, Oregon, United States. The university enrolls over 32,000 undergraduates and 5,000 graduate students.
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 128.193.0.0/16 | 65.5K |
8.5%
|
Oregon State University | US | Oregon | Corvallis |
| 199.201.139.0/24 | 256 |
3.1%
|
Oregon State University | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS4201 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 |
|---|---|---|
| 128.193.0.0/16 | 4,507 | 2026-07-19 05:43:09 |
| 199.201.139.0/24 | 4,433 | 2026-07-19 05:43:09 |
Frequently Asked Questions
What is AS4201?
AS4201 is an Autonomous System Number assigned to Oregon State University. 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 AS4201 announce?
AS4201 announces 65.8K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United States.
Who operates AS4201?
AS4201 is operated by Oregon State University. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS4201 registered in?
AS4201 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
