ASN AS11901 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS11901?

AS11901 is listed under County of Sacramento.

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.

AS11901 County of Sacramento | IPGeolocation.io

ASN Lookup Tool

County of Sacramento saccounty.net

US 2 Routes

AS Data

AS11901

AS11901 – County of Sacramento

AS Number	11901
AS Name	COSWAN
Organization	County of Sacramento(county-1)
Country	US
Website	saccounty.net
Number of IPv4 Routes	2
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2007-05-29

ASN Intelligence API for production workflows

Use ASN data for AS11901 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
208.79.244.0/23	AS11901	County of Sacramento	County of Sacramento	512
208.79.246.0/23	AS11901	County of Sacramento	County of Sacramento	512

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:       11901
ASName:         COSWAN
ASHandle:       AS11901
RegDate:        2007-05-29
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/11901


OrgName:        County of Sacramento
OrgId:          COUNTY-1
Address:        799 G Street
City:           Sacramento
StateProv:      CA
PostalCode:     95814
Country:        US
RegDate:        1992-02-14
Updated:        2011-06-10
Ref:            https://rdap.arin.net/registry/entity/COUNTY-1


OrgAbuseHandle: PIM-ARIN
OrgAbuseName:   Perimeter Infrastructure Management
OrgAbusePhone:  +1-916-875-1800 
OrgAbuseEmail:  dtech-nsae@saccounty.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/PIM-ARIN

OrgNOCHandle: PIM-ARIN
OrgNOCName:   Perimeter Infrastructure Management
OrgNOCPhone:  +1-916-875-1800 
OrgNOCEmail:  dtech-nsae@saccounty.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/PIM-ARIN

OrgTechHandle: PIM-ARIN
OrgTechName:   Perimeter Infrastructure Management
OrgTechPhone:  +1-916-875-1800 
OrgTechEmail:  dtech-nsae@saccounty.net
OrgTechRef:    https://rdap.arin.net/registry/entity/PIM-ARIN

OrgNOCHandle: CSD3-ARIN
OrgNOCName:   County of Sacramento - DNS
OrgNOCPhone:  +1-916-874-9104 
OrgNOCEmail:  cosdns@saccounty.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/CSD3-ARIN

OrgAbuseHandle: CSD3-ARIN
OrgAbuseName:   County of Sacramento - DNS
OrgAbusePhone:  +1-916-874-9104 
OrgAbuseEmail:  cosdns@saccounty.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CSD3-ARIN

RNOCHandle: PIM-ARIN
RNOCName:   Perimeter Infrastructure Management
RNOCPhone:  +1-916-875-1800 
RNOCEmail:  dtech-nsae@saccounty.net
RNOCRef:    https://rdap.arin.net/registry/entity/PIM-ARIN

RAbuseHandle: PIM-ARIN
RAbuseName:   Perimeter Infrastructure Management
RAbusePhone:  +1-916-875-1800 
RAbuseEmail:  dtech-nsae@saccounty.net
RAbuseRef:    https://rdap.arin.net/registry/entity/PIM-ARIN

RTechHandle: PIM-ARIN
RTechName:   Perimeter Infrastructure Management
RTechPhone:  +1-916-875-1800 
RTechEmail:  dtech-nsae@saccounty.net
RTechRef:    https://rdap.arin.net/registry/entity/PIM-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
AS7018	AT&T Enterprises, LLC	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS3356	Level 3 Parent, LLC	US
AS7385	Allstream Business US, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS3356	Level 3 Parent, LLC	US
AS7385	Allstream Business US, LLC	US