ASN AS19921 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19921?

AS19921 is listed under Health Sciences Libraries Consortium.

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.

AS19921 Health Sciences Libraries Consortium

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AS19921

AS19921 – Health Sciences Libraries Consortium

AS Number	19921
AS Name	ACCESSPENNSYLVANIA
Organization	Health Sciences Libraries Consortium(hslc)
Country	US
Website	hslc.org
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	ISP
Registry	ARIN
Date Allocated	2001-03-02

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Use ASN data for AS19921 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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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:       19921
ASName:         ACCESSPENNSYLVANIA
ASHandle:       AS19921
RegDate:        2001-03-02
Updated:        2023-11-17    
Ref:            https://rdap.arin.net/registry/autnum/19921


OrgName:        Health Sciences Libraries Consortium
OrgId:          HSLC
Address:        3600 Market Street, Suite 550
City:           Philadelphia
StateProv:      PA
PostalCode:     19104
Country:        US
RegDate:        1991-04-10
Updated:        2026-01-08
Ref:            https://rdap.arin.net/registry/entity/HSLC


OrgNOCHandle: SANFO91-ARIN
OrgNOCName:   Sanford, Daniel 
OrgNOCPhone:  +1-215-222-1532 
OrgNOCEmail:  dsanford@hslc.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/SANFO91-ARIN

OrgAbuseHandle: PERKI398-ARIN
OrgAbuseName:   Perkins, Yardell 
OrgAbusePhone:  +1-215-222-1532 
OrgAbuseEmail:  yperkins@hslc.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/PERKI398-ARIN

OrgTechHandle: PERKI398-ARIN
OrgTechName:   Perkins, Yardell 
OrgTechPhone:  +1-215-222-1532 
OrgTechEmail:  yperkins@hslc.org
OrgTechRef:    https://rdap.arin.net/registry/entity/PERKI398-ARIN

OrgTechHandle: SANFO91-ARIN
OrgTechName:   Sanford, Daniel 
OrgTechPhone:  +1-215-222-1532 
OrgTechEmail:  dsanford@hslc.org
OrgTechRef:    https://rdap.arin.net/registry/entity/SANFO91-ARIN

OrgAbuseHandle: SANFO91-ARIN
OrgAbuseName:   Sanford, Daniel 
OrgAbusePhone:  +1-215-222-1532 
OrgAbuseEmail:  dsanford@hslc.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/SANFO91-ARIN

RNOCHandle: SANFO91-ARIN
RNOCName:   Sanford, Daniel 
RNOCPhone:  +1-215-222-1532 
RNOCEmail:  dsanford@hslc.org
RNOCRef:    https://rdap.arin.net/registry/entity/SANFO91-ARIN

RAbuseHandle: SANFO91-ARIN
RAbuseName:   Sanford, Daniel 
RAbusePhone:  +1-215-222-1532 
RAbuseEmail:  dsanford@hslc.org
RAbuseRef:    https://rdap.arin.net/registry/entity/SANFO91-ARIN

RTechHandle: SANFO91-ARIN
RTechName:   Sanford, Daniel 
RTechPhone:  +1-215-222-1532 
RTechEmail:  dsanford@hslc.org
RTechRef:    https://rdap.arin.net/registry/entity/SANFO91-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.
#

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AS19921 – Health Sciences Libraries Consortium

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