Autonomous system
AS11047 HHCC-ASN1
Unclassified ARIN
Summary
Hartford Hospital
enterprise legacy
HHCC-ASN1 belongs to Hartford Hospital, the large teaching hospital in Hartford, Connecticut and the flagship of the Hartford HealthCare system. It is a hospital enterprise network: twelve /24s (about 3,000 addresses) out of 199.231.16.0/20, no IPv6, and three observed BGP neighbours.
What it's used for
This carries a healthcare provider's own operations — clinical systems, electronic health records, imaging, administration, staff and campus connectivity across the hospital and its affiliated sites. Nothing here is sold to anyone: the AS exists so the hospital can multi-home to a small number of upstream carriers and keep its address space provider-independent, which matters when clinical systems and inter-facility links cannot tolerate a renumbering event or a single carrier's outage.
Notable
All twelve announced prefixes are registered to HARTHOSP, the hospital's own ARIN network handle, and they are contiguous /24s carved from a single block. There is no third-party or leased space mixed in, and no hosting or transit shape to the announcement — three neighbours against 3,000 addresses is exactly what a self-multi-homing enterprise looks like.
Interesting
The whole network fits inside one /20, yet it is announced as twelve separate /24s rather than a single aggregate. Splitting a covering block like that is generally done to steer particular segments over particular upstreams, and it is a good reminder that prefix count says nothing about size — twelve prefixes here amount to less address space than a single /20 elsewhere in this range.
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 6 prefixes · 3.07K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 6 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11047- Registry name
- HHCC-ASN1
- Registrant
- Hartford Hospital
- Abuse contact
- stephen.kosciuk@hhchealth.org
- Registered
- 2006-07-12
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 12 with no ROA
- ROAs
- 0 authorising AS11047
- ASPA
- no ASPA record
- IRR
- 100% registered · 12 of 12 announcements
- Route objects
- 11 naming AS11047
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