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AS53811 San Francisco Chronicle, LLC

Q: Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

ASN Lookup Tool

San Francisco Chronicle, LLC hearst.com

US 1 Routes

AS Data

AS53811

AS53811 – San Francisco Chronicle, LLC

AS Number	53811
AS Name	SFCL-HNP
Organization	San Francisco Chronicle, LLC(sfcl-1)
Country	US
Website	hearst.com
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2011-06-02

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Use ASN data for AS53811 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.134.145.0/24	AS53811	San Francisco Chronicle, LLC	San Francisco Chronicle	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:       53811
ASName:         SFCL-HNP
ASHandle:       AS53811
RegDate:        2011-06-02
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/53811


OrgName:        San Francisco Chronicle, LLC
OrgId:          SFCL-1
Address:        901 Mission St.
City:           San Francisco
StateProv:      CA
PostalCode:     94013
Country:        US
RegDate:        2007-08-16
Updated:        2024-11-21
Ref:            https://rdap.arin.net/registry/entity/SFCL-1


OrgAbuseHandle: HTSNO-ARIN
OrgAbuseName:   HTS NOC-Admin
OrgAbusePhone:  +1-704-348-8000 
OrgAbuseEmail:  HTS-ARIN-Admin@hearst.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HTSNO-ARIN

OrgTechHandle: HTSNO-ARIN
OrgTechName:   HTS NOC-Admin
OrgTechPhone:  +1-704-348-8000 
OrgTechEmail:  HTS-ARIN-Admin@hearst.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HTSNO-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
AS701	Verizon Business/UUnet	US
AS3356	Level 3 Parent, LLC	US
AS701	Verizon Business	US

Upstreams

AS Number	Description	Country
AS3356	Level 3 Parent, LLC	US
AS701	Verizon Business	US

Frequently Asked Questions

What is ASN AS53811?

ASN AS53811 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS53811?

AS53811 is listed under San Francisco Chronicle, LLC.

What do peers, upstreams, and downstreams mean?

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 included here?

WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.