asn.dev

Autonomous system

AS6124 MARIST

Education ARIN

IPv4 addresses 65.28K 9 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Marist University

United States · AI-generated

education university research legacy

MARIST is the campus network of Marist University in Poughkeepsie, New York, known as Marist College until it took university status in January 2025.

What it's used for

  • Campus networking for a private university: residence halls, classrooms and labs, faculty and staff systems, administration, and Marist's unusually large research-computing estate.
  • It announces a single class-B-sized block, 148.100.0.0/16, giving it around 65,000 IPv4 addresses for the campus.

Notable

  • An institutional address: an IP here is a campus machine, a lab system or a student connection, not a household and not a hosting customer.
  • ARIN's registration for the ASN dates to November 1995, so the campus has run its own autonomous system since the mid-1990s.

Interesting

  • Marist sits a few miles from IBM's Poughkeepsie mainframe plant, and the two have run a joint study partnership for decades, starting with an IBM 3090 installed on campus and continuing through current-generation z-series hardware. It has made a mid-sized liberal-arts university into a serious mainframe and Linux-on-Z research site, which is not what a /16 in Poughkeepsie would otherwise suggest.

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

3 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS46887Crown Castle Fiber LLC144
AS174Cogent Communications, LLC117
AS3754NYSERNet12

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, 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 9 prefixes · 65.28K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America10

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS6124
Registry name
MARIST
Registrant
Marist University
Abuse contact
jeff.obrizok@marist.edu
Registered
1995-11-22
Last changed
2025-03-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS6124
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
6 naming AS6124

Reputation

Classification and threat

Education University, school or national research and education network.

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: 447 networks and 1,852 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

Cross-check