Autonomous system
AS36861 AS36861 - RWJBarnabas Health, Inc.
Unclassified ARIN
Summary
RWJBarnabas Health
healthcare business enterprise us
AS36861 is operated by RWJBarnabas Health, Inc., New Jersey’s largest academic health system.
What it's used for
- The address space carries internal corporate infrastructure for a healthcare network, evidenced by netnames
LIBERTYHEALTHandSBHCS-NETWORKregistered to the same entity. - The AS announces 4096 IPv4 addresses across 3 prefixes with only 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access provider.
Notable
- All three announced prefixes share the same registrant, RWJBarnabas Health, Inc., confirming consistent ownership of the address inventory.
- The address inventory consists of three distinct IPv4 blocks: 204.58.160.0/21, 204.58.156.0/22, and 208.68.20.0/22, with no IPv6 prefixes announced.
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 2026-11-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS36861- Registry name
- AS36861
- Registrant
- RWJBarnabas Health, Inc.
- Abuse contact
- hussein.syed@rwjbh.org
- Registered
- 2006-05-16
- Last changed
- 2017-03-13
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 8 valid, 0 with no ROA
- ROAs
- 3 authorising AS36861
- ASPA
- no ASPA record
- IRR
- 50% registered · 4 of 8 announcements 2 other origin
- Route objects
- 2 naming AS36861
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: 453 networks and 1,846 prefixes, as published 2026-11-11. 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