asn.dev

Autonomous system

AS22971 SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS

Unclassified ARIN

IPv4 addresses 1.28K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Hospital Sisters Health Systems

United States of America · AI-generated

healthcare business internal

SVHHSTOSF-NET is operated by Hospital Sisters Health Systems.

What it's used for

  • The address space carries internal corporate infrastructure for a healthcare provider, as indicated by the netname HSHSNTWK and registrant Hospital Sisters Health Systems across all prefixes.
  • The AS announces 1280 IPv4 addresses across 3 prefixes with only 1 observed neighbour, a ratio that implies a small, self-contained internal network rather than a transit or access provider.

Notable

  • All three announced prefixes share the same registrant, Hospital Sisters Health Systems, and netname HSHSNTWK, which aligns with the AS holder identity.
  • The address inventory consists of three blocks in the 204.44.0.0/16 range, specifically 204.44.160.0/23, 204.44.174.0/23, and 204.44.173.0/24.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2381WiscNet180

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-08, 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 3 prefixes · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS22971
Registry name
SVHHSTOSF-NET
Registrant
ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS
Abuse contact
ARINadmin@hshs.org
Registered
2011-01-31
Last changed
2026-10-06
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS22971
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
1 naming AS22971

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: 455 networks and 1,854 prefixes, as published 2026-11-09. 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