asn.dev

Autonomous system

AS40956 NORTHWOOD-UNIVERSITY

Unclassified ARIN

IPv4 addresses 768 3 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

Northwood University

United States of America · AI-generated

education university business

NORTHWOOD-UNIVERSITY is the autonomous system for Northwood University, a private institution based in Midland, Michigan.

What it's used for

  • The address space carries university infrastructure, with netnames NU-137-83-77-0, NU-147-160-166-0, and NU-208-103-178-0 all registered to Northwood University.
  • The AS announces 768 IPv4 addresses across 3 prefixes and maintains 2 observed neighbours, a ratio consistent with a small, self-contained institutional network rather than a transit provider.
  • Traffic from this AS consists of campus network activity, including student and staff access, administrative services, and online learning platforms.

Notable

  • All three announced prefixes list Northwood University as the registrant, matching the AS holder exactly.
  • The address inventory is compact, consisting of three /24 blocks totaling 768 addresses, with no IPv6 prefixes currently announced.

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
AS12129123.Net, Inc.181
AS7018AT&T Enterprises, LLC11

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 3 prefixes · 768 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America3

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40956
Registry name
NORTHWOOD-UNIVERSITY
Registrant
Northwood University
Abuse contact
abuse@northwood.edu
Registered
2008-06-04
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS40956
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS40956

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: 445 networks and 1,817 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