Autonomous system
AS12245 PRMC-ASN
Unclassified ARIN
Summary
Peninsula Regional Medical Center
enterprise healthcare legacy
The network of a regional hospital on Maryland's Eastern Shore.
What it's used for
- Hospital and clinic connectivity. 768 addresses in three
/24s with two observed BGP neighbours and no IPv6 announced.
Notable
- Three separate
/24s out of168.67.0.0:168.67.1,168.67.2and168.67.7. They are registered asPRMCto the medical center itself. - Two neighbours rather than one. For a hospital, a second path is the difference between an outage and an inconvenience.
- Reverse DNS carries two different domains. One address answers as
sl.peninsula.org, the hospital's own; another answers asmail.sleepwaves.net.
Interesting
sleepwaves.netis the more informative of the two. A hospital's address space ends up hosting the specialty practices that operate inside it — a sleep medicine service here — each with its own name, its own mail server and its own branding, all sitting in the hospital's addresses. The organisational chart of a medical center is visible in its reverse DNS in a way it rarely is anywhere else.168.67.0.0/16is class-B-sized space, and what the hospital announces from inside it is three scattered/24s. The blocks it does hold are registered to it directly rather than to a provider, which for an institution of this size means somebody made the case for independent addresses and has kept them ever since.
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 2026-10-18, 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 · 768 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS12245- Registry name
- PRMC-ASN
- Registrant
- Peninsula Regional Medical Center
- Abuse contact
- Brad.Taylor@tidalhealth.org
- Registered
- 2005-08-09
- Last changed
- 2012-02-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS12245
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS12245
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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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