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

Who manages ASN AS19524?

AS19524 is listed under Comerica Incorporated.

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?

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AS19524 Comerica Incorporated

ASN Lookup Tool

Comerica Incorporated comerica.com

US 44 Routes

AS Data

AS19524

AS19524 – Comerica Incorporated

AS Number	19524
AS Name	COMERICA-INC
Organization	Comerica Incorporated (comeri-3)
Country	US
Website	comerica.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.

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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

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:         COMERICA-INC
ASHandle:       AS19524
RegDate:        2001-01-16
Updated:        2026-03-31
Ref:            https://rdap.arin.net/registry/autnum/19524


OrgName:        Comerica Incorporated
OrgId:          COMERI-3
Address:        3701 Hamlin Rd.
City:           Auburn Hills
StateProv:      MI
PostalCode:     48326
Country:        US
RegDate:        2001-01-16
Updated:        2026-03-31
Ref:            https://rdap.arin.net/registry/entity/COMERI-3


OrgTechHandle: OTOOL13-ARIN
OrgTechName:   OToole, Sean 
OrgTechPhone:  +1-248-371-4329 
OrgTechEmail:  sotoole@comerica.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OTOOL13-ARIN

OrgAbuseHandle: MDC57-ARIN
OrgAbuseName:   Caza, Matt D
OrgAbusePhone:  +1-248-371-4395 
OrgAbuseEmail:  mdcaza@comerica.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MDC57-ARIN

OrgTechHandle: MDC57-ARIN
OrgTechName:   Caza, Matt D
OrgTechPhone:  +1-248-371-4395 
OrgTechEmail:  mdcaza@comerica.com
OrgTechRef:    https://rdap.arin.net/registry/entity/MDC57-ARIN

OrgAbuseHandle: OTOOL13-ARIN
OrgAbuseName:   OToole, Sean 
OrgAbusePhone:  +1-248-371-4329 
OrgAbuseEmail:  sotoole@comerica.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OTOOL13-ARIN

OrgTechHandle: FRANK58-ARIN
OrgTechName:   Frank, George 
OrgTechPhone:  +1-248-371-4500 
OrgTechEmail:  gfrank@comerica.com
OrgTechRef:    https://rdap.arin.net/registry/entity/FRANK58-ARIN

RTechHandle: MDC57-ARIN
RTechName:   Caza, Matt D
RTechPhone:  +1-248-371-4395 
RTechEmail:  mdcaza@comerica.com
RTechRef:    https://rdap.arin.net/registry/entity/MDC57-ARIN

RAbuseHandle: OTOOL13-ARIN
RAbuseName:   OToole, Sean 
RAbusePhone:  +1-248-371-4329 
RAbuseEmail:  sotoole@comerica.com
RAbuseRef:    https://rdap.arin.net/registry/entity/OTOOL13-ARIN

RAbuseHandle: MDC57-ARIN
RAbuseName:   Caza, Matt D
RAbusePhone:  +1-248-371-4395 
RAbuseEmail:  mdcaza@comerica.com
RAbuseRef:    https://rdap.arin.net/registry/entity/MDC57-ARIN

RTechHandle: OTOOL13-ARIN
RTechName:   OToole, Sean 
RTechPhone:  +1-248-371-4329 
RTechEmail:  sotoole@comerica.com
RTechRef:    https://rdap.arin.net/registry/entity/OTOOL13-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" : "COMERICA-INC",
    "tech_contacts" : [ "OTOOL13-ARIN", "MDC57-ARIN", "FRANK58-ARIN", "MDC57-ARIN", "OTOOL13-ARIN" ],
    "abuse_contacts" : [ "MDC57-ARIN", "OTOOL13-ARIN", "OTOOL13-ARIN", "MDC57-ARIN" ],
    "date_created" : "2001-01-16",
    "date_updated" : "2026-03-31",
    "source" : "https://rdap.arin.net/registry/autnum/19524"
  } ],
  "organization" : {
    "handle" : "COMERI-3",
    "name" : "Comerica Incorporated",
    "address" : [ "3701 Hamlin Rd.", "Auburn Hills", "MI", "48326", "US" ],
    "street" : "Hamlin Rd.",
    "city" : "Auburn Hills",
    "state" : "MI",
    "zip_code" : "48326",
    "country" : [ "US" ],
    "date_created" : "2001-01-16",
    "date_updated" : "2026-03-31",
    "source" : "https://rdap.arin.net/registry/entity/COMERI-3",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "OTOOL13-ARIN",
    "name" : "OToole, Sean",
    "email" : [ "sotoole@comerica.com" ],
    "phone" : [ "+1-248-371-4329" ],
    "source" : "https://rdap.arin.net/registry/entity/OTOOL13-ARIN"
  }, {
    "handle" : "MDC57-ARIN",
    "name" : "Caza, Matt D",
    "email" : [ "mdcaza@comerica.com" ],
    "phone" : [ "+1-248-371-4395" ],
    "source" : "https://rdap.arin.net/registry/entity/MDC57-ARIN"
  }, {
    "handle" : "FRANK58-ARIN",
    "name" : "Frank, George",
    "email" : [ "gfrank@comerica.com" ],
    "phone" : [ "+1-248-371-4500" ],
    "source" : "https://rdap.arin.net/registry/entity/FRANK58-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "MDC57-ARIN",
    "name" : "Caza, Matt D",
    "email" : [ "mdcaza@comerica.com" ],
    "phone" : [ "+1-248-371-4395" ],
    "source" : "https://rdap.arin.net/registry/entity/MDC57-ARIN"
  }, {
    "handle" : "OTOOL13-ARIN",
    "name" : "OToole, Sean",
    "email" : [ "sotoole@comerica.com" ],
    "phone" : [ "+1-248-371-4329" ],
    "source" : "https://rdap.arin.net/registry/entity/OTOOL13-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