ASN AS31923 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS31923?

AS31923 is listed under The Auto Club Group.

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.

AS31923 The Auto Club Group | IPGeolocation.io

ASN Lookup Tool

The Auto Club Group acg.aaa.com

US 6 Routes

AS Data

AS31923

AS31923 – The Auto Club Group

AS Number	31923
AS Name	THE-AUTO-CLUB-GROUP-ASN-1
Organization	The Auto Club Group (acg-220)
Country	US
Website	acg.aaa.com
Number of IPv4 Routes	6
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2004-01-23

ASN Intelligence API for production workflows

Use ASN data for AS31923 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
204.78.176.0/20	AS31923	The Auto Club Group	The Auto Club Group	4096
204.78.228.0/22	AS31923	The Auto Club Group	The Auto Club Group	1024
204.78.235.0/24	AS31923	The Auto Club Group	The Auto Club Group	256
204.78.233.0/24	AS31923	The Auto Club Group	The Auto Club Group	256
204.78.160.0/20	AS31923	The Auto Club Group	The Auto Club Group	4096
204.78.244.0/24	AS31923	The Auto Club Group	The Auto Club Group	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:       31923
ASName:         THE-AUTO-CLUB-GROUP-ASN-1
ASHandle:       AS31923
RegDate:        2004-01-23
Updated:        2024-02-06
Ref:            https://rdap.arin.net/registry/autnum/31923


OrgName:        The Auto Club Group
OrgId:          ACG-220
Address:        1 AUTO CLUB DR
City:           Dearborn
StateProv:      MI
PostalCode:     48126
Country:        US
RegDate:        2023-11-30
Updated:        2023-12-27
Ref:            https://rdap.arin.net/registry/entity/ACG-220


OrgAbuseHandle: HOSTM394-ARIN
OrgAbuseName:   Hostmaster
OrgAbusePhone:  +1-313-336-1876 
OrgAbuseEmail:  hostmaster@acg.aaa.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/HOSTM394-ARIN

OrgTechHandle: HOSTM394-ARIN
OrgTechName:   Hostmaster
OrgTechPhone:  +1-313-336-1876 
OrgTechEmail:  hostmaster@acg.aaa.com
OrgTechRef:    https://rdap.arin.net/registry/entity/HOSTM394-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" : "31923",
    "as_handle" : "AS31923",
    "as_name" : "THE-AUTO-CLUB-GROUP-ASN-1",
    "tech_contacts" : [ "HOSTM394-ARIN" ],
    "abuse_contacts" : [ "HOSTM394-ARIN" ],
    "date_created" : "2004-01-23",
    "date_updated" : "2024-02-06",
    "source" : "https://rdap.arin.net/registry/autnum/31923"
  } ],
  "organization" : {
    "handle" : "ACG-220",
    "name" : "The Auto Club Group",
    "address" : [ "1 AUTO CLUB DR", "Dearborn", "MI", "48126", "US" ],
    "street" : "Auto Club Dr",
    "city" : "Dearborn",
    "state" : "MI",
    "zip_code" : "48126",
    "country" : [ "US" ],
    "date_created" : "2023-11-30",
    "date_updated" : "2023-12-27",
    "source" : "https://rdap.arin.net/registry/entity/ACG-220",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "HOSTM394-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@acg.aaa.com" ],
    "phone" : [ "+1-313-336-1876" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM394-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "HOSTM394-ARIN",
    "name" : "Hostmaster",
    "email" : [ "hostmaster@acg.aaa.com" ],
    "phone" : [ "+1-313-336-1876" ],
    "source" : "https://rdap.arin.net/registry/entity/HOSTM394-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS6939	Hurricane Electric LLC	US
AS20090	IANA - Autonomous System Number	US
AS14537	Continent 8 LLC	US
AS23005	SWITCH, LTD	US
AS33668	Comcast Cable Communications, LLC	US
AS199524	G-Core Labs S.A.	LU
AS12129	123.Net, Inc.	US
AS20205	Amplex Electric, Inc.	US
AS53292	ManagedWay	US
AS20090	RESERVED	ZZ

Upstreams

AS Number	Description	Country
AS12129	123.Net, Inc.	US
AS53292	ManagedWay	US
AS6939	Hurricane Electric LLC	US
AS3356	Level 3 Parent, LLC	US
AS23005	SWITCH, LTD	US
AS33668	Comcast Cable Communications, LLC	US

Downstreams

AS Number	Description	Country
AS20090	IANA - Autonomous System Number	ZZ