ASN AS19281 is an Autonomous System Number used to identify a network for BGP internet routing.

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.

AS19281 Quad9 | IPGeolocation.io

ASN Lookup Tool

Quad9 quad9.net

US 6 Routes

AS Data

AS19281

AS19281 – Quad9

AS Number	19281
AS Name	QUAD9-AS-1
Organization	Quad9(clean-97)
Country	US
Website	quad9.net
Number of IPv4 Routes	5
Number of IPv6 Routes	1
ASN type	ISP
Registry	ARIN
Date Allocated	2017-09-13

ASN Intelligence API for production workflows

Use ASN data for AS19281 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

Get ASN API Key ASN API Docs

IP Ranges

Route	Origin	Origin Name	ISP	# IPs
147.72.242.0/24	AS19281	Quad9	Pittsburgh Supercomputing Center	256
2620:fe::/48	AS19281	Quad9	Quad	~1×10²⁴
149.112.112.0/24	AS19281	Quad9	Quad	256
199.249.255.0/24	AS19281	Quad9	Quad	256
9.9.9.0/24	AS19281	Quad9	Quad	256
149.112.149.0/24	AS19281	Quad9	Quad	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:       19281
ASName:         QUAD9-AS-1
ASHandle:       AS19281
RegDate:        2017-09-13
Updated:        2019-11-13
Comment:        Quad9 is a non-profit that provides free, secure, open DNS recursive resolution services on our anycast address space. Please see https://www.quad9.net/ for details.    
Ref:            https://rdap.arin.net/registry/autnum/19281


OrgName:        Quad9
OrgId:          CLEAN-97
Address:        CleanerDNS Inc. dba Quad9
Address:        1442A Walnut Street, Suite 501
City:           Berkeley
StateProv:      CA
PostalCode:     94709
Country:        US
RegDate:        2017-09-07
Updated:        2025-01-10
Comment:        https://quad9.net/
Comment:        Global Public Recursive DNS Resolver Service
Ref:            https://rdap.arin.net/registry/entity/CLEAN-97


OrgAbuseHandle: QUADA1-ARIN
OrgAbuseName:   Quad9 Abuse
OrgAbusePhone:  +1-415-831-3129 
OrgAbuseEmail:  abuse@quad9.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/QUADA1-ARIN

OrgTechHandle: KARAD10-ARIN
OrgTechName:   Kara, Darren 
OrgTechPhone:  +1-703-929-8954 
OrgTechEmail:  dkara@quad9.net
OrgTechRef:    https://rdap.arin.net/registry/entity/KARAD10-ARIN

OrgNOCHandle: QNO5-ARIN
OrgNOCName:   Quad9 Network Operations
OrgNOCPhone:  +1-415-831-3129 
OrgNOCEmail:  noc@quad9.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/QNO5-ARIN

OrgTechHandle: QNO5-ARIN
OrgTechName:   Quad9 Network Operations
OrgTechPhone:  +1-415-831-3129 
OrgTechEmail:  noc@quad9.net
OrgTechRef:    https://rdap.arin.net/registry/entity/QNO5-ARIN

OrgTechHandle: SHRES60-ARIN
OrgTechName:   Shrestha, Kabindra 
OrgTechPhone:  +1-415-831-3111 
OrgTechEmail:  kabindra@pch.net
OrgTechRef:    https://rdap.arin.net/registry/entity/SHRES60-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
AS58511	Anycast Global Backbone	AU
AS152735	Guam Exchange	GU
AS198385	AlpineDC SA	CH
AS7195	EDGEUNO S.A.S	CO
AS49115	E MAX INTERNET & IT s.r.o.	SK
AS20326	TeraSwitch Networks Inc.	US
AS42541	FIBERBY	DK
AS328977	Wavex Internet Service Provider LTD	KE
AS5050	Pittsburgh Supercomputing Center	US
AS42	WoodyNet, Inc.	US

Upstreams

AS Number	Description	Country
AS5050	Pittsburgh Supercomputing Center	US
AS42	WoodyNet, Inc.	US
AS198385	AlpineDC SA	CH
AS49115	E MAX INTERNET & IT s.r.o.	SK
AS7195	EDGEUNO S.A.S	CO
AS58511	Anycast Holdings Pty Ltd	AU
AS20326	TeraSwitch Networks Inc.	US
AS50629	LWLcom GmbH	DE
AS2495	Kansas Research and Education Network	US
AS42541	Fiberby ApS	DK