Autonomous system
AS54063 MHHS-AS - Memorial Hermann Health System
Unclassified ARIN
Summary
Memorial Hermann Health System
healthcare business internal
The AS handle MHHS-AS is held by Memorial Hermann Health System.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by netnames
MHHS-1,MHHS-3, andMHHS-6registered to Memorial Hermann Health System. - The AS announces 1280 IPv4 addresses across 4 prefixes with 4 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
- Traffic from this AS consists of internal hospital systems, administrative endpoints, and clinical infrastructure for a major healthcare provider operating 17 hospitals in southeast Texas.
Notable
- Three of the four announced prefixes are registered directly to Memorial Hermann Health System, while 198.22.24.0/23 is registered to Various Registries (Maintained by ARIN) with netname NET198.
- The address inventory is finely subdivided into small /24 and /23 blocks, consistent with site-by-site segmentation for a large multi-campus health system.
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 2026-11-06, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 1.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS54063- Registry name
- MHHS-AS
- Registrant
- Memorial Hermann Health System
- Abuse contact
- Randy.yates@memorialhermann.org
- Registered
- 2011-09-19
- Last changed
- 2017-12-11
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS54063
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 6 naming AS54063
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