asn.dev

Autonomous system

AS36450 UTSYSADM-AS-1

Unclassified ARIN

IPv4 addresses 512 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

University of Texas System Administration

United States of America · AI-generated

education business internal

UTSYSADM-AS-1 is operated by University of Texas System Administration.

What it's used for

  • The address space carries internal university infrastructure, identified by the netname NETBLK-UTSYSTEM and registrant University of Texas System Administration.
  • The AS announces 512 IPv4 addresses across 1 prefix (198.147.138.0/23) with 1 observed neighbour, indicating a small, self-contained internal network rather than a transit or large-scale access provider.

Notable

  • The RDAP registrant University of Texas System Administration matches the AS holder, confirming consistent ownership of the address block.
  • The inventory consists of a single contiguous /23 block, representing a finely subdivided internal corporate estate for the UT System's administrative functions.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6922Texas Department of Information Resources58

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, 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 · 512 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS36450
Registry name
UTSYSADM-AS-1
Registrant
University of Texas System Administration
Abuse contact
netadmin@utsystem.edu
Registered
2006-01-06
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS36450
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS36450

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 1,779 prefixes, as published 2026-10-24. 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