asn.dev

Autonomous system

AS6111 FHIS - ADVENTIST HEALTH SYSTEM/SUNBELT, INC.

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

AdventHealth (Adventist Health System/Sunbelt)

United States · AI-generated

enterprise healthcare legacy

FHIS is registered to Adventist Health System/Sunbelt, Inc., the Florida-based non-profit hospital system that now operates as AdventHealth. The handle preserves the old name of its IT arm, Florida Hospital Information Services.

What it's used for

  • Connectivity for a large hospital network's own operations: clinical and administrative systems across its hospitals and clinics, plus the corporate IT that supports them.
  • The routed footprint is deliberately small: 512 addresses out of 204.156.112.0/23 and 204.156.113.0/24. That is normal for a healthcare organisation that keeps most of its estate internal and exposes very little directly.

Notable

  • An enterprise / healthcare address, not an eyeball or hosting one. IPs here front a hospital system's own infrastructure; they are not consumer connections and are not sold to third parties.
  • ARIN's registration for this ASN dates to November 1995, so this is a genuine mid-1990s allocation to an institution that was networking early by hospital standards.
  • The registrant address in Orlando, Florida is the system's corporate home. Adventist Health System renamed itself AdventHealth in 2019, but the registry still carries the older entity name.

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
AS3356Level 3 Parent, LLC118
AS33132Crown Castle Fiber LLC58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-06, 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
AS6111
Registry name
FHIS
Registrant
ADVENTIST HEALTH SYSTEM/SUNBELT, INC.
Abuse contact
Bill.Ennion@adventhealth.com
Registered
1995-11-10
Last changed
2023-01-09
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS6111
ASPA
no ASPA record
IRR
0% registered · 0 of 3 announcements 2 other origin
Route objects
0 naming AS6111

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: 454 networks and 1,854 prefixes, as published 2026-11-06. 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