ASN AS1909 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS1909?

AS1909 is listed under San Diego Supercomputer Center.

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.

AS1909 San Diego Supercomputer Center

ASN Lookup Tool

San Diego Supercomputer Center sdsc.edu

US 1 Routes

AS Data

AS1909

AS1909 – San Diego Supercomputer Center

AS Number	1909
AS Name	CAIDA
Organization	San Diego Supercomputer Center(sdsc-z)
Country	US
Website	sdsc.edu
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1992-06-02

ASN Intelligence API for production workflows

Use ASN data for AS1909 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.172.226.0/24	AS1909	San Diego Supercomputer Center	San Diego Supercomputer Center	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:       1909
ASName:         CAIDA
ASHandle:       AS1909
RegDate:        1992-06-02
Updated:        2024-01-10    
Ref:            https://rdap.arin.net/registry/autnum/1909


OrgName:        San Diego Supercomputer Center
OrgId:          SDSC-Z
Address:        9500 Gilman Drive
Address:        MS-0505
City:           La Jolla
StateProv:      CA
PostalCode:     92093-0505
Country:        US
RegDate:        2023-04-06
Updated:        2023-05-24
Ref:            https://rdap.arin.net/registry/entity/SDSC-Z


OrgAbuseHandle: SDSCH-ARIN
OrgAbuseName:   SDSC Hostmaster
OrgAbusePhone:  +1-858-534-5090 
OrgAbuseEmail:  hostmaster@sdsc.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SDSCH-ARIN

OrgNOCHandle: TH60-ARIN
OrgNOCName:   Hutton, Thomas 
OrgNOCPhone:  +1-858-534-5136 
OrgNOCEmail:  thomas.e.hutton@gmail.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/TH60-ARIN

OrgTechHandle: TH60-ARIN
OrgTechName:   Hutton, Thomas 
OrgTechPhone:  +1-858-534-5136 
OrgTechEmail:  thomas.e.hutton@gmail.com
OrgTechRef:    https://rdap.arin.net/registry/entity/TH60-ARIN

OrgNOCHandle: ENS13-ARIN
OrgNOCName:   ENS
OrgNOCPhone:  +1-858-534-5090 
OrgNOCEmail:  ens@sdsc.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/ENS13-ARIN

OrgTechHandle: SKINN116-ARIN
OrgTechName:   Skinner, Erik 
OrgTechPhone:  +1-815-534-5090 
OrgTechEmail:  eskinner@sdsc.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/SKINN116-ARIN

OrgTechHandle: HERMA36-ARIN
OrgTechName:   Herman, Dan 
OrgTechPhone:  +1-585-747-7458 
OrgTechEmail:  diherman@sdsc.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/HERMA36-ARIN

OrgAbuseHandle: SDSCA-ARIN
OrgAbuseName:   SDSC-ABUSE
OrgAbusePhone:  +1-858-534-5090 
OrgAbuseEmail:  abuse@sdsc.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SDSCA-ARIN

RTechHandle: KCC10-ARIN
RTechName:   Claffy, K C.
RTechPhone:  +1-858-534-5000 
RTechEmail:  kc@caida.org
RTechRef:    https://rdap.arin.net/registry/entity/KCC10-ARIN

RTechHandle: TH60-ARIN
RTechName:   Hutton, Thomas 
RTechPhone:  +1-858-534-5136 
RTechEmail:  thomas.e.hutton@gmail.com
RTechRef:    https://rdap.arin.net/registry/entity/TH60-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
AS195	San Diego Supercomputer Center	US

Upstreams

AS Number	Description	Country
AS195	San Diego Supercomputer Center	US

Contacts

Email Contacts

eskinner@sdsc.edu diherman@sdsc.edu hostmaster@sdsc.edu thomas.e.hutton@gmail.com

Abuse Contacts

abuse@sdsc.edu