asn.dev

Autonomous system

AS55215 TRINITY-HEALTH

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

Trinity Health

United States of America · AI-generated

healthcare business enterprise

The AS handle TRINITY-HEALTH is held by Trinity Health.

What it's used for

  • The space carries internal corporate infrastructure, evidenced by the netname TH-579 and registrant Trinity Health.
  • The inventory consists of 512 IPv4 addresses within a single prefix (158.120.124.0/23) and 0 IPv6 prefixes, with 2 observed neighbours.
  • This allocation supports office workers, clinical systems, and branch backhaul for a large not-for-profit health system operating hospitals and continuing care locations across multiple states.

Notable

  • The RDAP registrant Trinity Health agrees with the AS holder.
  • The address inventory is a single /23 block, indicating a consolidated internal estate rather than a distributed access network.

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
AS11232Midcontinent Communications120
AS14543SRT Communications, Inc.70

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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
AS55215
Registry name
TRINITY-HEALTH
Registrant
Trinity Health
Abuse contact
mcross@hbs.net
Registered
2022-08-04
Last changed
2022-08-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS55215
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS55215

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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