ASN AS19851 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19851?

AS19851 is listed under Doylestown Hospital.

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.

AS19851 Doylestown Hospital | IPGeolocation.io

ASN Lookup Tool

Doylestown Hospital dh.org

US 1 Routes

AS Data

AS19851

AS19851 – Doylestown Hospital

AS Number	19851
AS Name	DOYLESTOWN-HOSPITAL
Organization	Doylestown Hospital(dh-224)
Country	US
Website	dh.org
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2017-09-15

ASN Intelligence API for production workflows

Use ASN data for AS19851 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
170.76.212.0/24	AS19851	Doylestown Hospital	Doylestown Hospital	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:       19851
ASName:         DOYLESTOWN-HOSPITAL
ASHandle:       AS19851
RegDate:        2017-09-15
Updated:        2017-09-15    
Ref:            https://rdap.arin.net/registry/autnum/19851


OrgName:        Doylestown Hospital
OrgId:          DH-224
Address:        595 West State Street
City:           Doylestown
StateProv:      PA
PostalCode:     18901
Country:        US
RegDate:        2017-07-07
Updated:        2025-09-22
Ref:            https://rdap.arin.net/registry/entity/DH-224


OrgNOCHandle: STRAU143-ARIN
OrgNOCName:   Strausser, Vince 
OrgNOCPhone:  +1-215-345-2698 
OrgNOCEmail:  vstrausser@dh.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/STRAU143-ARIN

OrgDNSHandle: DJH83-ARIN
OrgDNSName:   Hopkins, David John
OrgDNSPhone:  +1-215-828-6728 
OrgDNSEmail:  David.hopkins@pennmedicine.upenn.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/DJH83-ARIN

OrgAbuseHandle: STRAU143-ARIN
OrgAbuseName:   Strausser, Vince 
OrgAbusePhone:  +1-215-345-2698 
OrgAbuseEmail:  vstrausser@dh.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/STRAU143-ARIN

OrgTechHandle: DJH83-ARIN
OrgTechName:   Hopkins, David John
OrgTechPhone:  +1-215-828-6728 
OrgTechEmail:  David.hopkins@pennmedicine.upenn.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/DJH83-ARIN

OrgNOCHandle: DJH83-ARIN
OrgNOCName:   Hopkins, David John
OrgNOCPhone:  +1-215-828-6728 
OrgNOCEmail:  David.hopkins@pennmedicine.upenn.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/DJH83-ARIN

OrgAbuseHandle: DJH83-ARIN
OrgAbuseName:   Hopkins, David John
OrgAbusePhone:  +1-215-828-6728 
OrgAbuseEmail:  David.hopkins@pennmedicine.upenn.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DJH83-ARIN

OrgRoutingHandle: DJH83-ARIN
OrgRoutingName:   Hopkins, David John
OrgRoutingPhone:  +1-215-828-6728 
OrgRoutingEmail:  David.hopkins@pennmedicine.upenn.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/DJH83-ARIN

OrgTechHandle: STRAU143-ARIN
OrgTechName:   Strausser, Vince 
OrgTechPhone:  +1-215-345-2698 
OrgTechEmail:  vstrausser@dh.org
OrgTechRef:    https://rdap.arin.net/registry/entity/STRAU143-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
AS33287	Comcast Cable Communications, LLC	US
AS701	Verizon Business/UUnet	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS33287	Comcast Cable Communications, LLC	US
AS701	Verizon Business	US