asn.dev

Autonomous system

AS18870 GWB - Great Western Bank

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Great Western Bank

United States of America · AI-generated

banking business corporate

The AS handle GWB is held by Great Western Bank.

What it's used for

  • The address space carries corporate infrastructure for Great Western Bank, as indicated by the netname GWB-PUBLIC and the registrant identity.
  • The AS announces 512 IPv4 addresses across 1 prefix with 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.

Notable

  • The RDAP registrant Great Western Bank agrees with the AS holder GWB - Great Western Bank.
  • The address inventory consists of a single /23 block (192.40.218.0/23), representing a compact and finely subdivided corporate allocation.

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

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13576SDN Communications106
AS3356Level 3 Parent, LLC22

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-11, 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 1 prefixes · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS18870
Registry name
GWB
Registrant
Great Western Bank
Abuse contact
aaron.klimes@fib.com
Registered
2012-10-03
Last changed
2012-12-31
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS18870
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
1 naming AS18870

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: 453 networks and 1,846 prefixes, as published 2026-11-12. 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