asn.dev

Autonomous system

AS18719 TSRSOLUTIONS

Unclassified ARIN

IPv4 addresses 4.35K 6 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

TSR Solutions

United States of America · AI-generated

business enterprise us

The AS handle TSRSOLUTIONS is held by TSR Solutions, Inc.

What it's used for

  • The address space is primarily registered under the netname TSR-SOLUTIONS with registrants listed as "TSR Solutions, Inc.; TSR NOC", indicating an internal corporate network.
  • The inventory consists of 6 IPv4 prefixes announcing 4352 addresses, with only 2 observed neighbours, a ratio that suggests a small-scale business or enterprise network rather than a transit provider.

Notable

  • Registrants for five of the six prefixes align with the announcer, identified as TSR Solutions, Inc.
  • The prefix 192.31.237.0/24 is registered to Ascedia, Inc. under the netname ASCEDIA-NET1, which differs from the primary holder.
  • The address inventory is concentrated in the 96.30.240.0/21 block, with smaller subdivisions in the 96.30.248.0/24 range and a single /24 from Ascedia.

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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Milwaukee Internet ExchangeMilwaukee, United States204.107.122.61

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS53597Hoyos Consulting LLC255
AS3356Level 3 Parent, LLC70

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 6 prefixes · 4.35K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America6

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS18719
Registry name
TSRSOLUTIONS
Registrant
TSR Solutions, Inc.
Abuse contact
noc@tsrsolutions.com
Registered
2000-10-03
Last changed
2020-03-11
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 5 with no ROA
ROAs
0 authorising AS18719
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
6 naming AS18719

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 1,773 prefixes, as published 2026-10-13. 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