asn.dev

Autonomous system

AS54181 SJH-BANGOR-AS1 - ST JOSEPH HOSPITAL

Unclassified AFRINIC

IPv4 addresses 256 1 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

St. Joseph Hospital

United States of America · AI-generated

hospital business healthcare bangor

SJH-BANGOR-AS1 is operated by St. Joseph Hospital.

What it's used for

  • The address space carries internal hospital network traffic, identified by the netname SJH-BANGOR-SEP2011 and registrant ST JOSEPH HOSPITAL.
  • The AS announces a single IPv4 prefix (205.233.139.0/24) comprising 256 addresses with 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or access provider.
  • Traffic from this AS consists of internal communications for the hospital's administrative, clinical, and IT systems located in Bangor, Maine.

Notable

  • The RDAP registrant ST JOSEPH HOSPITAL matches the AS handle and the announced prefix netname, confirming consistent ownership.
  • St. Joseph Hospital in Bangor, Maine, is a Catholic-affiliated facility that was part of the Covenant Health Systems network; the Sisters of St. Felix of Cantalice sponsored the hospital from 1947 until 2010.
  • The inventory consists of a single /24 block with no IPv6 prefixes, typical of a legacy corporate or institutional estate.

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
AS33422New England Telehealth Consortium57

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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

AFRINIC · via Atlas (registry + RDAP)
Registry
AFRINIC
Handle
AS54181
Registry name
SJH-BANGOR-AS1
Registrant
ST JOSEPH HOSPITAL
Abuse contact
ryan.haskell@sjhhealth.com
Registered
2011-10-28
Last changed
2012-03-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS54181
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS54181

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