Autonomous system
AS53280 PROMEDICA
Unclassified ARIN
Summary
ProMedica
healthcare business enterprise
PROMEDICA is the autonomous system for ProMedica, a non-profit healthcare system in Toledo, Ohio.
What it's used for
- The address space is primarily registered under the netname
TOLHOSPfor The Toledo Hospital, with one prefix registered to MHCS - HERBERT PERMANENT CENTER. - The AS announces 6,144 IPv4 addresses across 15 prefixes and 1 IPv6 prefix, while maintaining only 4 observed routing neighbours.
- This low neighbour-to-address ratio indicates an internal corporate estate for a large medical facility, where the space is subdivided for site-by-site segmentation rather than serving external subscribers.
Notable
- Registrants for the majority of the inventory are The Toledo Hospital, consistent with the AS holder ProMedica, which operates the hospital.
- ProMedica acquired HCR ManorCare in 2018 and rebranded it as ProMedica Senior Care, expanding its operational footprint within the same network infrastructure.
- The inventory consists of a mix of /21, /23, and /24 blocks, with one /24 block registered to a different entity, MHCS - HERBERT PERMANENT 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
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 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 19 prefixes · 7.94K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 20 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS53280- Registry name
- PROMEDICA
- Registrant
- The Toledo Hospital
- Abuse contact
- anton.kolev@promedica.org
- Registered
- 2014-06-10
- Last changed
- 2014-06-10
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 4% valid · 1 valid, 24 with no ROA
- ROAs
- 1 authorising AS53280
- ASPA
- no ASPA record
- IRR
- 100% registered · 25 of 25 announcements
- Route objects
- 12 naming AS53280
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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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