ASN AS4201 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS4201?

AS4201 is listed under Oregon State University.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS4201 Oregon State University

ASN Lookup Tool

Oregon State University oregonstate.edu

US 3 Routes

AS Data

AS4201

AS4201 – Oregon State University

AS Number	4201
AS Name	ORST-AS
Organization	Oregon State University(osu-3-z)
Country	US
Website	oregonstate.edu
Number of IPv4 Routes	2
Number of IPv6 Routes	1
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1995-01-05

ASN Intelligence API for production workflows

Use ASN data for AS4201 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
2620:105:f000::/40	AS4201	Oregon State University	Oregon State University	~309×10²⁴
199.201.139.0/24	AS4201	Oregon State University	Oregon State University	256
128.193.0.0/16	AS4201	Oregon State University	Oregon State University	65536

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       4201
ASName:         ORST-AS
ASHandle:       AS4201
RegDate:        1995-01-05
Updated:        2023-02-23    
Ref:            https://rdap.arin.net/registry/autnum/4201


OrgName:        Oregon State University
OrgId:          OSU-3-Z
Address:        Network Services
Address:        Kerr Administration Bldg
City:           Corvallis
StateProv:      OR
PostalCode:     97331
Country:        US
RegDate:        2023-01-06
Updated:        2023-01-06
Ref:            https://rdap.arin.net/registry/entity/OSU-3-Z


OrgAbuseHandle: HOSTM1272-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-541-737-4948 
OrgAbuseEmail:  Hostmaster@oregonstate.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM1272-ARIN

OrgTechHandle: BROCK9-ARIN
OrgTechName:   Brock, Anthony 
OrgTechPhone:  +1-541-737-9607 
OrgTechEmail:  anthony.brock@oregonstate.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/BROCK9-ARIN

OrgAbuseHandle: BROCK9-ARIN
OrgAbuseName:   Brock, Anthony 
OrgAbusePhone:  +1-541-737-9607 
OrgAbuseEmail:  anthony.brock@oregonstate.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/BROCK9-ARIN

OrgTechHandle: HOSTM1272-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-541-737-4948 
OrgTechEmail:  Hostmaster@oregonstate.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM1272-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS3701	University of Oregon	US

Upstreams

AS Number	Description	Country
AS3701	University of Oregon	US