asn.dev

Autonomous system

AS54860 SOUTHERN-ILLINOIS-HEALTHCARE

Unclassified ARIN

IPv4 addresses 256 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

Southern Illinois Healthcare

United States of America · AI-generated

healthcare business internal us

SOUTHERN-ILLINOIS-HEALTHCARE is held by Southern Illinois Hospital Services.

What it's used for

  • The space carries internal corporate traffic for a regional healthcare provider, identified by the netname SIH-INTERNET and registrant Southern Illinois Hospital Services.
  • The AS announces a single IPv4 prefix (199.103.96.0/24) comprising 256 addresses with 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access network.
  • Traffic from this AS consists of office workers, clinical systems, and administrative endpoints for a network of health centers and hospitals operating across multiple counties in Southern Illinois.

Notable

  • The RDAP registrant Southern Illinois Hospital Services aligns directly with the AS handle and the operator's public identity.
  • The address inventory is minimal, consisting of a single /24 block, which is typical for a private corporate network that does not require large-scale public address space.

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
AS30036Mediacom Communications Corp54
AS40702Clearwave Communications8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54860
Registry name
SOUTHERN-ILLINOIS-HEALTHCARE
Registrant
Southern Illinois Hospital Services
Abuse contact
nathan.phoenix@sih.net
Registered
2012-09-12
Last changed
2012-09-12
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS54860
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS54860

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: 443 networks and 1,779 prefixes, as published 2026-10-24. 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