asn.dev

Autonomous system

AS54471 AVH - Androscoggin Valley Hospital

Unclassified ARIN

IPv4 addresses 4.10K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Androscoggin Valley Hospital

United States of America · AI-generated

hospital business us healthcare

The AS handle AVH is operated by Androscoggin Valley Hospital.

What it's used for

  • The address space carries internal hospital network traffic, evidenced by the netname AVH-NET1 and reverse DNS entries pointing to avhnh.org.
  • The network announces a single IPv4 prefix, 216.105.192.0/20, comprising 4096 addresses, with 2 observed routing neighbours.
  • Traffic from this AS consists of internal communications, clinical systems, and administrative endpoints for the hospital facility located in Berlin, New Hampshire.

Notable

  • The RDAP registrant Androscoggin Valley Hospital matches the AS holder and the netname AVH-NET1.
  • The address inventory is a single contiguous /20 block, typical for a standalone corporate or institutional site.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS11351Charter Communications Inc60
AS33422New England Telehealth Consortium1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54471
Registry name
AVH
Registrant
Androscoggin Valley Hospital
Abuse contact
hostmaster@northcountryhealth.org
Registered
2012-02-27
Last changed
2012-02-27
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS54471
ASPA
2 declared providers
IRR
100% registered · 1 of 1 announcements
Route objects
6 naming AS54471

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 1,854 prefixes, as published 2026-11-06. 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

Cross-check