asn.dev

Autonomous system

AS25879 UPHSM-ASN-01 - UP Health System - Marquette

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

UP Health System - Marquette

United States of America · AI-generated

healthcare business hospital enterprise

The AS handle UPHSM-ASN-01 is held by UP Health System - Marquette.

What it's used for

  • The address space carries internal hospital infrastructure, evidenced by the netname MARQUETTE-GENERAL-HOSPITAL-PUBLIC and registrant Marquette General Hospital.
  • The network announces a single IPv4 prefix of 256 addresses with 2 observed neighbours, indicating a small, self-contained enterprise network rather than a transit or access provider.

Notable

  • The registrant Marquette General Hospital aligns with the announcer, reflecting the facility's identity prior to its rebranding.
  • UP Health System - Marquette was formerly known as Marquette General Hospital and is now part of the University of Michigan Health system.
  • The inventory consists of a single /24 block, representing a compact internal estate for the medical center.

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
AS46208Peninsula Fiber Network, LLC58
AS7018AT&T Enterprises, LLC2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, 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
AS25879
Registry name
UPHSM-ASN-01
Registrant
UP Health System - Marquette
Abuse contact
nse@mghs.org
Registered
2022-06-14
Last changed
2022-06-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS25879
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS25879

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: 449 networks and 1,846 prefixes, as published 2026-11-03. 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