asn.dev

Autonomous system

AS54584 PMHC

Unclassified ARIN

IPv4 addresses 256 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

Phelps Memorial Health Center

United States of America · AI-generated

healthcare business internal

The AS handle PMHC is held by Phelps Memorial Health Center.

What it's used for

  • The address space carries internal hospital infrastructure, evidenced by the netname PMHC and registrant Phelps Memorial Health Center.
  • The network announces 256 IPv4 addresses across 1 prefix with 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access provider.
  • Traffic from this AS consists of internal clinical, administrative, and IT systems for the hospital facility.

Notable

  • The registrant Phelps Memorial Health Center matches the AS handle PMHC and the announced prefix 170.76.207.0/24.
  • Phelps Memorial Health Center is a member of the Northwell Health system.
  • The inventory consists of a single /24 block, reflecting a tightly segmented internal 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

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
AS20231Charter Communications Inc59
AS29900GLENWOOD TELEPHONE MEMBERSHIP CORPORATION4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS54584
Registry name
PMHC
Registrant
Phelps Memorial Health Center
Abuse contact
agvancampen@phelpsmemorial.com
Registered
2018-02-15
Last changed
2018-02-15
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS54584
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS54584

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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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