ASN AS19524 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS19524?

AS19524 is listed under Fifth Third Bank, National Association.

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.

AS19524 Fifth Third Bank, National Association

ASN Lookup Tool

Fifth Third Bank, National Association 53.com

US 44 Routes

AS Data

AS19524

AS19524 – Fifth Third Bank, National Association

AS Number	19524
AS Name	FIFTH-THIRD-BANCORP
Organization	Fifth Third Bank, National Association (ftb-8)
Country	US
Website	53.com
Number of IPv4 Routes	44
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2001-01-16

ASN Intelligence API for production workflows

Use ASN data for AS19524 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
170.228.215.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.184.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.253.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.180.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.6.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.104.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.185.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.10.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.1.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.214.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
12.15.7.0/24	AS19524	Comerica Incorporated	AT&T Enterprises, LLC	256
170.228.12.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.216.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.3.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.8.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.183.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.100.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.217.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.186.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.0.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.213.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.182.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.4.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.187.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.9.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
12.15.6.0/24	AS19524	Comerica Incorporated	AT&T Enterprises, LLC	256
170.228.13.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.204.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.107.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.218.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.106.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.212.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.188.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.156.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.14.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.219.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.5.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.105.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.181.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.220.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.252.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.15.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.2.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	256
170.228.11.0/24	AS19524	Comerica Incorporated	Comerica Incorporated	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:       19524
ASName:         FIFTH-THIRD-BANCORP
ASHandle:       AS19524
RegDate:        2001-01-16
Updated:        2026-07-14
Ref:            https://rdap.arin.net/registry/autnum/19524


OrgName:        Fifth Third Bank, National Association
OrgId:          FTB-8
Address:        38 Fountain sq
City:           Cincinnati
StateProv:      OH
PostalCode:     45263
Country:        US
RegDate:        2002-08-29
Updated:        2026-07-14
Ref:            https://rdap.arin.net/registry/entity/FTB-8


OrgAbuseHandle: IPADM198-ARIN
OrgAbuseName:   ipadmin
OrgAbusePhone:  +1-513-534-5300 
OrgAbuseEmail:  it.dnstech.bancorp@53.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/IPADM198-ARIN

OrgTechHandle: IPADM198-ARIN
OrgTechName:   ipadmin
OrgTechPhone:  +1-513-534-5300 
OrgTechEmail:  it.dnstech.bancorp@53.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADM198-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" : "19524",
    "as_handle" : "AS19524",
    "as_name" : "FIFTH-THIRD-BANCORP",
    "tech_contacts" : [ "IPADM198-ARIN" ],
    "abuse_contacts" : [ "IPADM198-ARIN" ],
    "date_created" : "2001-01-16",
    "date_updated" : "2026-07-14",
    "source" : "https://rdap.arin.net/registry/autnum/19524"
  } ],
  "organization" : {
    "handle" : "FTB-8",
    "name" : "Fifth Third Bank, National Association",
    "address" : [ "38 Fountain sq", "Cincinnati", "OH", "45263", "US" ],
    "street" : "Fountain Sq",
    "city" : "Cincinnati",
    "state" : "OH",
    "zip_code" : "45263",
    "country" : [ "US" ],
    "date_created" : "2002-08-29",
    "date_updated" : "2026-07-14",
    "source" : "https://rdap.arin.net/registry/entity/FTB-8",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "IPADM198-ARIN",
    "name" : "ipadmin",
    "email" : [ "it.dnstech.bancorp@53.com" ],
    "phone" : [ "+1-513-534-5300" ],
    "source" : "https://rdap.arin.net/registry/entity/IPADM198-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "IPADM198-ARIN",
    "name" : "ipadmin",
    "email" : [ "it.dnstech.bancorp@53.com" ],
    "phone" : [ "+1-513-534-5300" ],
    "source" : "https://rdap.arin.net/registry/entity/IPADM198-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS19905	Vercara, LLC	US

Upstreams

AS Number	Description	Country
AS7018	AT&T Enterprises, LLC	US
AS19905	Vercara, LLC	US