Autonomous system
AS53927 ACI-WORLDWIDE
Unclassified ARIN
Summary
ACI Worldwide
business payments software corporate
ACI-WORLDWIDE is operated by ACI Worldwide, Inc.
What it's used for
- The address space is registered under the netname
NET-139-131-0-0for all four announced prefixes, indicating a unified corporate estate. - The AS announces 5,888 IPv4 addresses across 4 prefixes and maintains 3 observed neighbours, a ratio consistent with an internal corporate network rather than a transit or access provider.
- As a digital payments software company, this infrastructure supports the company's internal operations, including web/API endpoints and office connectivity for its global payments orchestration platform.
Notable
- All registrants for the announced prefixes are listed as ACI Worldwide, Inc., matching the AS holder.
- The company was formerly known as Transaction Systems Architects, Inc. before changing its name to ACI Worldwide, Inc.
- The inventory consists of four distinct IPv4 blocks within the 139.131.0.0/16 range, with no IPv6 prefixes announced.
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 2026-10-30, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 5.89K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS53927- Registry name
- ACI-WORLDWIDE
- Registrant
- ACI Worldwide, Inc.
- Abuse contact
- globalnetworking@aciworldwide.com
- Registered
- 2011-08-10
- Last changed
- 2012-06-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 7 authorising AS53927
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 10 naming AS53927
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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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