asn.dev

Autonomous system

AS22342 TCMC

Unclassified ARIN

IPv4 addresses 1.02K 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

Geisinger System Services

United States of America · AI-generated

business healthcare internal

The AS handle TCMC is held by Geisinger System Services.

What it's used for

  • The space carries internal corporate infrastructure, evidenced by the netname GCSOM and registrant Geisinger System Services.
  • The inventory consists of 1024 IPv4 addresses within a single prefix 204.139.52.0/22, with 2 observed neighbours, indicating a small, self-contained internal estate rather than a transit or access network.

Notable

  • The registrant Geisinger System Services agrees with the announcer, confirming the space is owned by the holder.
  • The address inventory is a single contiguous block, typical of a corporate network managing its own IP space without external peering complexity.

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
AS3356Level 3 Parent, LLC41
AS26801Zito Media, L.P.19

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

Shape and geography

IPv4 1 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS22342
Registry name
GCSOM
Registrant
Geisinger System Services
Abuse contact
nianetworkinfraarchitects@geisinger.edu
Registered
2009-01-12
Last changed
2026-02-04
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS22342
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS22342

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: 442 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

Cross-check