Autonomous system
AS3565 PRISMA-HEALTH
Unclassified ARIN
Summary
Prisma Health
enterprise legacy
PRISMA-HEALTH, the network of Prisma Health, a large not-for-profit health system operating hospitals and clinics across South Carolina.
What it's used for
- Enterprise networking for a hospital system: clinical systems, electronic health records, imaging, campus connectivity across its hospitals and outpatient sites, and administrative IT.
Notable
- Enterprise address space (about 3,840 IPv4 addresses) serving an institution's own staff and facilities, not internet subscribers.
- Healthcare networks of this size run under strict regulatory constraints, so the space is largely internal and tightly controlled rather than public-facing.
Interesting
- The ARIN record predates the Prisma Health name by decades; the registration goes back to 1994 and the handle was updated as the health system was renamed. Another reminder that a handle describes whoever holds it now.
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 2026-10-26, 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 · 3.84K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 5 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3565- Registry name
- PRISMA-HEALTH
- Registrant
- Prisma Health
- Abuse contact
- prismanetwork-arin@prismahealth.org
- Registered
- 1994-04-26
- Last changed
- 2023-06-27
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 25% valid · 4 valid, 12 with no ROA
- ROAs
- 5 authorising AS3565
- ASPA
- no ASPA record
- IRR
- 100% registered · 16 of 16 announcements
- Route objects
- 13 naming AS3565
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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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