ASN AS46286 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS46286?

AS46286 is listed under Cook County.

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.

AS46286 Cook County | IPGeolocation.io

ASN Lookup Tool

Cook County cookcountygov.com

US 7 Routes

AS Data

AS46286

AS46286 – Cook County

AS Number	46286
AS Name	COOK-COUNTY
Organization	Cook County(cookc-2)
Country	US
Website	cookcountygov.com
Number of IPv4 Routes	7
Number of IPv6 Routes	0
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	2008-08-01

ASN Intelligence API for production workflows

Use ASN data for AS46286 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
162.217.184.0/22	AS46286	Cook County	Cook County	1024
12.218.238.0/23	AS46286	Cook County	AT&T Enterprises, LLC	512
66.99.240.0/23	AS46286	Cook County	Illinois Century Network	512
162.217.187.0/24	AS46286	Cook County	Cook County	256
162.217.186.0/24	AS46286	Cook County	Cook County	256
162.217.185.0/24	AS46286	Cook County	Cook County	256
162.217.184.0/24	AS46286	Cook County	Cook County	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:       46286
ASName:         COOK-COUNTY
ASHandle:       AS46286
RegDate:        2008-08-01
Updated:        2008-08-01    
Ref:            https://rdap.arin.net/registry/autnum/46286


OrgName:        Cook County
OrgId:          COOKC-2
Address:        118 N Clark Street
City:           Chicago
StateProv:      IL
PostalCode:     60602
Country:        US
RegDate:        2008-05-23
Updated:        2016-04-21
Ref:            https://rdap.arin.net/registry/entity/COOKC-2


OrgNOCHandle: NCCAD1-ARIN
OrgNOCName:   NCC Admin
OrgNOCPhone:  +1-312-603-9002 
OrgNOCEmail:  NCC@cookcountyil.gov
OrgNOCRef:    https://rdap.arin.net/registry/entity/NCCAD1-ARIN

OrgAbuseHandle: NCCAD1-ARIN
OrgAbuseName:   NCC Admin
OrgAbusePhone:  +1-312-603-9002 
OrgAbuseEmail:  NCC@cookcountyil.gov
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NCCAD1-ARIN

OrgTechHandle: NCCAD1-ARIN
OrgTechName:   NCC Admin
OrgTechPhone:  +1-312-603-9002 
OrgTechEmail:  NCC@cookcountyil.gov
OrgTechRef:    https://rdap.arin.net/registry/entity/NCCAD1-ARIN

RAbuseHandle: NCC29-ARIN
RAbuseName:   Network Control Center
RAbusePhone:  +1-312-603-0087 
RAbuseEmail:  ddonelson@cookcountygov.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NCC29-ARIN

RTechHandle: NCC29-ARIN
RTechName:   Network Control Center
RTechPhone:  +1-312-603-0087 
RTechEmail:  ddonelson@cookcountygov.com
RTechRef:    https://rdap.arin.net/registry/entity/NCC29-ARIN

RNOCHandle: NCC29-ARIN
RNOCName:   Network Control Center
RNOCPhone:  +1-312-603-0087 
RNOCEmail:  ddonelson@cookcountygov.com
RNOCRef:    https://rdap.arin.net/registry/entity/NCC29-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
AS6325	Illinois Century Network	US
AS15042	Urban Communications, Inc.	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS6325	Illinois Century Network	US
AS15042	Urban Communications, Inc.	US