asn.dev

Autonomous system

AS4201 ORST-AS

Education ARIN Educational/Research

IPv4 addresses 65.79K 7 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Oregon State University

United States · AI-generated

education university research legacy

ORST-AS is Oregon State University, the land-grant research university in Corvallis, Oregon.

What it's used for

  • Campus networking for students, faculty, and staff: instruction, research computing, libraries, residence halls, and administrative systems.
  • Supporting OSU's research programs, which span agriculture, forestry, oceanography, and engineering, along with its statewide Extension presence.

Notable

  • This is institutional address space, so traffic from it is campus users rather than commercial subscribers.
  • The allocation is large for one university (roughly 65,000 addresses), typical of schools that received IPv4 space early.

Interesting

  • Oregon State has a long-running association with open-source infrastructure through the OSU Open Source Lab, which has hosted mirrors and project infrastructure for major free-software communities.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3701University of Oregon220

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 7 prefixes · 65.79K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America8

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS4201
Registry name
ORST-AS
Registrant
Oregon State University
Abuse contact
anthony.brock@oregonstate.edu
Registered
1995-01-05
Last changed
2023-02-23
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Oregon State University
Also known as
Oregon State University
Network type
Educational/Research
Scope
North America
Peering policy
Selective
IRR as-set
AS4201
Facilities
1 facilities
Website
http://www.oregonstate.edu/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS4201
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
3 naming AS4201

Reputation

Classification and threat

Education University, school or national research and education network.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,771 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check