Autonomous system
AS33226 SUMMAHEALTH-ASN
Unclassified ARIN
Summary
Summa Health System
healthcare business enterprise ohio
The AS handle SUMMAHEALTH-ASN is held by Summa Health System.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by reverse DNS records pointing to
summa-health.organd netnames registered asNETBLK-SUMHLTHS. - The inventory consists of 4096 IPv4 addresses across 6 prefixes, with only 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
Notable
- All registrants for the announced prefixes are listed as Summa Health System, matching the AS holder.
- Summa Health System was formed from the merger of Akron City Hospital and St. Thomas hospitals, rebranding to unify the healthcare system in Northeast Ohio.
- The address inventory is finely subdivided into two /22 blocks and four /23 blocks, consistent with site-by-site segmentation for a large corporate 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
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 2026-10-12, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 3.07K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 5 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS33226- Registry name
- SUMMAHEALTH-ASN
- Registrant
- Summa Health
- Abuse contact
- NetworkEng@summahealth.org
- Registered
- 2004-10-28
- Last changed
- 2026-09-29
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS33226
- ASPA
- no ASPA record
- IRR
- 20% registered · 1 of 5 announcements 2 other origin
- Route objects
- 1 naming AS33226
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: 436 networks and 1,769 prefixes, as published 2026-10-13. 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