Autonomous system
AS9795 RAMSAYHEALTH-AS-AP Ramsay Health Care, Health Services, Sydney Australia
Unclassified APNIC
Summary
Ramsay Health Care
enterprise legacy
AS9795 (ramsayhealth-as-ap) is held by Ramsay Health Care, the Sydney-headquartered private hospital group. Listed on the ASX and operating acute, surgical, rehabilitation and psychiatric facilities in Australia and overseas, it is Australia's largest private hospital operator. The AS is its corporate network, not a service-provider network.
What it's used for
Enterprise connectivity for the group's own systems. RIS sees a single IPv4 prefix, 103.230.80.0/24, carrying 256 addresses, with no IPv6 announced. What makes this AS interesting is the ratio: only 256 addresses, but 7 observed BGP neighbours. That is an inversion of the usual pattern. A network this small normally has one or two upstreams; seven adjacencies against a single /24 says the organisation is deliberately reachable through many paths. For a hospital group whose clinical systems, imaging transfers and patient-facing bookings cannot tolerate a single carrier failure, that is a rational design: hold a small, portable block of your own address space, announce it from your own ASN, and buy connectivity from several providers so no one of them can take the group offline.
Notable
103.230.80.0/24is APNIC space from the post-exhaustion103.0.0.0/8block, so this is a relatively recent allocation despite the low legacy ASN.- Everything else Ramsay uses will be numbered inside providers' or cloud platforms' space; only this one block is announced from the company's own AS.
- No IPv6 is present in the global table for this network.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Sydney | Sydney, Australia | 45.127.173.16 |
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 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AU | Australia | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9795- Registry name
- ramsayhealth-as-ap
- Registrant
- Ramsay Health Care Australia Pty Ltd
- Abuse contact
- InfrastructureBilling.ZZZ@ramsayhealth.com.au
- Registered
- 2008-09-04
- Last changed
- 2020-07-07
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS9795
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 2 naming AS9795
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: 446 networks and 1,852 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