ASN AS1603 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS1603?

AS1603 is listed under Henderson 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.

AS1603 Henderson State University

ASN Lookup Tool

Henderson State University hsu.edu

US 3 Routes

AS Data

AS1603

AS1603 – Henderson State University

AS Number	1603
AS Name	HSU-AS
Organization	Henderson State University(hsu)
Country	US
Website	hsu.edu
Number of IPv4 Routes	3
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2009-08-07

ASN Intelligence API for production workflows

Use ASN data for AS1603 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.101.185.0/24	AS1603	Henderson State University	Henderson State University	256
198.16.16.0/21	AS1603	Henderson State University	Henderson State University	2048
198.16.24.0/24	AS1603	Henderson State University	Henderson State University Department of Computer Science	256

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:       1603
ASName:         HSU-AS
ASHandle:       AS1603
RegDate:        2009-08-07
Updated:        2016-01-28
Comment:        http://www.hsu.edu/    
Ref:            https://rdap.arin.net/registry/autnum/1603


OrgName:        Henderson State University
OrgId:          HSU
Address:        PO Box 7732
Address:        1100 Henderson St.
City:           Arkadelphia
StateProv:      AR
PostalCode:     71999
Country:        US
RegDate:        1991-07-16
Updated:        2025-12-22
Ref:            https://rdap.arin.net/registry/entity/HSU


OrgAbuseHandle: WOODS220-ARIN
OrgAbuseName:   Woodson, Ty 
OrgAbusePhone:  +1-870-230-5146 
OrgAbuseEmail:  ccsdirector@hsu.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/WOODS220-ARIN

OrgTechHandle: DJM144-ARIN
OrgTechName:   Mills, David Jonathan
OrgTechPhone:  +1-870-230-5678 
OrgTechEmail:  millsd@hsu.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/DJM144-ARIN

OrgTechHandle: WOODS220-ARIN
OrgTechName:   Woodson, Ty 
OrgTechPhone:  +1-870-230-5146 
OrgTechEmail:  ccsdirector@hsu.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/WOODS220-ARIN

RAbuseHandle: WOODS220-ARIN
RAbuseName:   Woodson, Ty 
RAbusePhone:  +1-870-230-5146 
RAbuseEmail:  ccsdirector@hsu.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/WOODS220-ARIN

RNOCHandle: WOODS220-ARIN
RNOCName:   Woodson, Ty 
RNOCPhone:  +1-870-230-5146 
RNOCEmail:  ccsdirector@hsu.edu
RNOCRef:    https://rdap.arin.net/registry/entity/WOODS220-ARIN

RTechHandle: WOODS220-ARIN
RTechName:   Woodson, Ty 
RTechPhone:  +1-870-230-5146 
RTechEmail:  ccsdirector@hsu.edu
RTechRef:    https://rdap.arin.net/registry/entity/WOODS220-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
AS40581	Arkansas Research and Education Optical Network	US

Upstreams

AS Number	Description	Country
AS40581	Arkansas Research and Education Optical Network	US