ASN AS40479 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS40479?

AS40479 is listed under Aurora Health Care, Inc..

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.

AS40479 Aurora Health Care, Inc.

ASN Lookup Tool

Aurora Health Care, Inc. aah.org

US 12 Routes

AS Data

AS40479

AS40479 – Aurora Health Care, Inc.

AS Number	40479
AS Name	AURORA-HEALTH-CARE
Organization	Aurora Health Care, Inc. (ahc)
Country	US
Website	aah.org
Number of IPv4 Routes	12
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2007-03-01

ASN Intelligence API for production workflows

Use ASN data for AS40479 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
198.177.70.0/24	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	256
198.177.71.0/24	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	256
198.177.72.0/21	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	2048
198.177.68.0/23	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	512
198.177.80.0/20	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	4096
198.177.92.0/24	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	256
198.177.64.0/23	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	512
198.177.93.0/24	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	256
198.177.94.0/23	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	512
198.177.67.0/24	AS40479	Aurora Health Care, Inc.	Aurora Health Care, Inc.	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:       40479
ASName:         AURORA-HEALTH-CARE
ASHandle:       AS40479
RegDate:        2007-03-01
Updated:        2019-11-12
Ref:            https://rdap.arin.net/registry/autnum/40479


OrgName:        Aurora Health Care, Inc.
OrgId:          AHC
Address:        3031 W. Montana St.
City:           Milwaukee
StateProv:      WI
PostalCode:     53215
Country:        US
RegDate:        1994-02-22
Updated:        2023-10-17
Ref:            https://rdap.arin.net/registry/entity/AHC


OrgAbuseHandle: NETWO1671-ARIN
OrgAbuseName:   Network Operations
OrgAbusePhone:  +1-847-723-1111 
OrgAbuseEmail:  security@aah.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO1671-ARIN

OrgTechHandle: NETWO1671-ARIN
OrgTechName:   Network Operations
OrgTechPhone:  +1-847-723-1111 
OrgTechEmail:  security@aah.org
OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO1671-ARIN

OrgNOCHandle: NETWO1671-ARIN
OrgNOCName:   Network Operations
OrgNOCPhone:  +1-847-723-1111 
OrgNOCEmail:  security@aah.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/NETWO1671-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

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "40479",
    "as_handle" : "AS40479",
    "as_name" : "AURORA-HEALTH-CARE",
    "tech_contacts" : [ "NETWO1671-ARIN" ],
    "abuse_contacts" : [ "NETWO1671-ARIN" ],
    "date_created" : "2007-03-01",
    "date_updated" : "2019-11-12",
    "source" : "https://rdap.arin.net/registry/autnum/40479"
  } ],
  "organization" : {
    "handle" : "AHC",
    "name" : "Aurora Health Care, Inc.",
    "address" : [ "3031 W. Montana St.", "Milwaukee", "WI", "53215", "US" ],
    "street" : "W. Montana St.",
    "city" : "Milwaukee",
    "state" : "WI",
    "zip_code" : "53215",
    "country" : [ "US" ],
    "date_created" : "1994-02-22",
    "date_updated" : "2023-10-17",
    "source" : "https://rdap.arin.net/registry/entity/AHC",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "NETWO1671-ARIN",
    "name" : "Network Operations",
    "email" : [ "security@aah.org" ],
    "phone" : [ "+1-847-723-1111" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO1671-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "NETWO1671-ARIN",
    "name" : "Network Operations",
    "email" : [ "security@aah.org" ],
    "phone" : [ "+1-847-723-1111" ],
    "source" : "https://rdap.arin.net/registry/entity/NETWO1671-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS40264	Charter Communications LLC	US
AS18683	Midwest Fiber Networks, LLC	US
AS7018	AT&T Enterprises, LLC	US

Upstreams

AS Number	Description	Country
AS40264	Charter Communications LLC	US
AS18683	Midwest Fiber Networks, LLC	US
AS7018	AT&T Enterprises, LLC	US