Autonomous system
AS53984 AS-WELLSTAR - Wellstar Health System
Unclassified ARIN
Summary
Wellstar Health System
healthcare business enterprise us
The AS handle AS-WELLSTAR is held by Wellstar Health System.
What it's used for
- The address space carries internal corporate infrastructure, evidenced by the consistent netname
WELLSTARand registrantWellstar Health Systemacross all sampled prefixes. - The AS announces 65,536 IPv4 addresses across 23 prefixes with only 2 observed neighbours, indicating a large internal corporate estate with site-by-site segmentation rather than an access or transit network.
- Traffic from this AS consists of internal network traffic for a major US healthcare provider, including clinical systems, administrative offices, and hospital branch backhaul.
Notable
- All registrants agree with the announcer, consistently listing
Wellstar Health Systemas the registrant for the largest prefixes. - The address inventory is finely subdivided into 23 prefixes, ranging from /17 down to /24, reflecting a structured internal network design typical of a large multi-site organization.
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 2026-11-07, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 23 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 23 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS53984- Registry name
- AS-WELLSTAR
- Registrant
- Wellstar Health System
- Abuse contact
- netblock@wellstar.org
- Registered
- 2011-08-23
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 10 with no ROA
- ROAs
- 0 authorising AS53984
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 1 naming AS53984
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 1,852 prefixes, as published 2026-11-08. 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