asn.dev

Autonomous system

AS18434 FNIS

Hosting ARIN

IPv4 addresses 25.34K 67 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 8 2 downstream
Flagged prefixes 0 none

Summary

Fidelity National Information Services

United States of America · AI-generated

business financial enterprise payments

FNIS is the autonomous system for Fidelity National Information Services, Inc.

What it's used for

  • The address space carries corporate infrastructure for financial services, evidenced by netnames like FIS-GLOBAL, FIS-IDDIS, and UK-FISEMEA-20131129, and reverse DNS entries such as shoppingcard.auspost.fisprepaid.com and nat-199-200-26-254.fnfis.com.
  • The AS announces 25344 IPv4 addresses across 67 prefixes with 10 observed neighbours, a ratio consistent with a large internal corporate estate rather than a transit or access provider.

Notable

  • Registrants align with the announcer, including Fidelity National Information Services, Inc., NWIP Services, and FIS Payments (UK) Ltd.
  • The inventory is finely subdivided into numerous /23 and /24 blocks, reflecting site-by-site segmentation typical of a global enterprise.
  • No IPv6 prefixes are announced in the inventory.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

8 upstream, 2 downstream and 10 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS32787Akamai Technologies, Inc.4,801
AS3356Level 3 Parent, LLC611
AS174Cogent Communications, LLC229
AS9498BHARTI Airtel Ltd.115
AS4826Vocus Connect International Backbone53
AS4230CLARO S.A.37
AS7473Singapore Telecommunications Ltd17
AS4755TATA Communications formerly VSNL is Leading ISP3

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 67 prefixes · 25.34K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America67

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS18434
Registry name
FNIS
Registrant
Fidelity National Information Services, Inc.
Abuse contact
hostmaster@fisglobal.com
Registered
2000-08-29
Last changed
2013-08-30
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
84% valid · 83 valid, 16 with no ROA
ROAs
106 authorising AS18434
ASPA
no ASPA record
IRR
99% registered · 98 of 99 announcements
Route objects
366 naming AS18434

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 442 networks and 1,783 prefixes, as published 2026-10-17. 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

Cross-check