Autonomous system
AS19524 COMERICA-INC - Comerica Incorporated
Unclassified ARIN
Summary
Fifth Third Bank
banking corporate finance us
The AS handle COMERICA-INC is held by Fifth Third Bank, National Association.
What it's used for
- The address space carries corporate banking infrastructure, evidenced by netnames such as
FIFTHTHIRDBANKDandATTassociated with registrants Fifth Third Bank and AT&T Enterprises. - The AS announces 11,264 IPv4 addresses across 16 prefixes with only 2 observed neighbours, indicating a small, self-contained corporate estate rather than a transit or access network.
Notable
- Registrants for the majority of prefixes are Fifth Third Bank, National Association, while one prefix (
12.15.6.0/23) is registered to AT&T Enterprises, LLC, suggesting leased or legacy space. - Fifth Third Bancorp completed its merger with Comerica Inc., absorbing the latter's operations and rebranding its branches under the Fifth Third name.
- The inventory consists of 16 IPv4 prefixes with no IPv6 announcements, reflecting a legacy IPv4-only corporate network.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 4.86K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 7 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19524- Registry name
- FIFTH-THIRD-BANCORP
- Registrant
- Fifth Third Bank, National Association
- Abuse contact
- it.dnstech.bancorp@53.com
- Registered
- 2001-01-16
- Last changed
- 2026-07-14
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 44 with no ROA
- ROAs
- 0 authorising AS19524
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 44 announcements 2 other origin
- Route objects
- 0 naming AS19524
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 454 networks and 1,847 prefixes, as published 2026-11-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere