Autonomous system
AS53352 HFHS-ASN
Unclassified ARIN
Summary
Henry Ford Health
healthcare business enterprise
HFHS-ASN is operated by Henry Ford Health.
What it's used for
- The address space carries internal corporate traffic, identified by the consistent netname
HFHS-PUBLIC-150across all registered prefixes. - The AS announces 4,352 IPv4 addresses across 10 prefixes and maintains 5 observed neighbours, a ratio indicative of a large internal corporate estate rather than a transit or access provider.
- Traffic from this AS consists of clinical, administrative, and research endpoints for a major health system operating multiple hospitals in Michigan.
Notable
- All registrants align with the announcer, with every prefix registered to Henry Ford Health System.
- The operator rebranded from Henry Ford Health System to Henry Ford Health, dropping the word "system" from its official name.
- The inventory consists of a mix of /22, /23, and /24 blocks, all within the 150.198.0.0/16 range, reflecting a finely subdivided internal 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 10 prefixes · 4.35K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 10 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS53352- Registry name
- HFHS-ASN
- Registrant
- Henry Ford Health System
- Abuse contact
- HFHS-ARIN@hfhs.org
- Registered
- 2009-12-15
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 17 with no ROA
- ROAs
- 0 authorising AS53352
- ASPA
- no ASPA record
- IRR
- 100% registered · 17 of 17 announcements
- Route objects
- 1 naming AS53352
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: 442 networks and 1,772 prefixes, as published 2026-10-15. 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