asn.dev

Autonomous system

AS13476 MSU-BOZEMAN

Unclassified ARIN

IPv4 addresses 80.64K 17 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Montana State University

United States · AI-generated

education research infrastructure

One university announces another university's address blocks, and the netnames read like a directory of departments.

What it's used for

  • A university's network. 80,640 addresses across seventeen IPv4 prefixes, the IPv6 block 2605:3640::/32, and two observed BGP neighbours.

Notable

  • 153.90.0.0/16 is netname MSU, registered to the university with two technology-department contacts.
  • Seven prefixes in 207.196 are netname NMP-BLK1, registered to a different university entirely.
  • Smaller blocks are netnames MONTANANET, MONTANACOE, MONTANALIB and NMC, the last registered to a branch campus.
  • Sampled names are gateway191.254.msu.montana.edu and c104-01-244461.gfcmsu.edu.

Interesting

  • Announcing another institution's space is how a statewide education network works. One member runs the connection to the outside world and carries everyone else's routes, so the registry shows several universities and the routing table shows one.
  • That gateway name splits the address across a word and a label boundary: the third octet is glued to gateway and the fourth stands alone. Every provider invents its own way of turning an address into a name, and this one turns it into two.
  • The department netnames are a snapshot of what mattered when the blocks were requested. A separate /24 for the library and another for engineering is how address space was handed out when a /24 per building was a reasonable thing to ask for.

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 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC926
AS101University of Washington662

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 17 prefixes · 80.64K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America18

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS13476
Registry name
MSU-BOZEMAN
Registrant
Montana State University
Abuse contact
uitnetworkadmins@montana.edu
Registered
1999-06-16
Last changed
2018-05-07
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 26 with no ROA
ROAs
0 authorising AS13476
ASPA
no ASPA record
IRR
100% registered · 26 of 26 announcements
Route objects
30 naming AS13476

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