asn.dev

Autonomous system

AS33178 CSINET

Unclassified ARIN

IPv4 addresses 4.35K 2 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

Cable Services, Inc.

United States of America · AI-generated

cable residential isp north-dakota

CSINET is the autonomous system for Cable Services, Inc., a regional cable operator based in Jamestown, North Dakota.

What it's used for

  • The address space carries residential cable internet traffic, evidenced by reverse DNS entries such as valley-228-netid.csicable.net, james-north-235-254.csicable.net, and james-south-statics-190.csicable.net.
  • The AS announces 4,352 IPv4 addresses across 2 prefixes while maintaining only 1 observed neighbour, a ratio characteristic of an access or eyeball network rather than a transit provider.

Notable

  • Registrants for both announced prefixes, CSINET and CSICABLE, are listed as Cable Services, Inc., aligning perfectly with the AS holder.
  • The inventory consists of one large /20 block and one /24 block, all located in the United States, 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

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

ASNetworkPaths seen
AS11232Midcontinent Communications192

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 2 prefixes · 4.35K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS33178
Registry name
CSINET
Registrant
Cable Services, Inc.
Abuse contact
abuse2@csicable.com
Registered
2011-03-16
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
33% valid · 1 valid, 2 with no ROA
ROAs
1 authorising AS33178
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
2 naming AS33178

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 1,772 prefixes, as published 2026-10-15. 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