Autonomous system
AS10971 CASSCOMM
Residential ARIN
Summary
Cass Cable TV, Inc. (CASSCOMM)
isp legacy
CASSCOMM is Cass Cable TV, Inc., the cable and broadband arm of CASSCOMM, a locally owned telecom group in central Illinois. It is an eyeball network: a regional cable/fibre operator carrying subscriber traffic, not a wholesale carrier.
What it's used for
RIS sees 19 announced IPv4 prefixes covering about 25,856 addresses, one IPv6 prefix (2604:1f00::/32), and 6 observed neighbours. The neighbour count is what a small regional ISP with a couple of transit providers and a few peers looks like; a wholesale carrier of any size would show orders of magnitude more adjacencies.
The reverse DNS settles it. Sampled addresses come back as 24-52-128-5.ip.casscomm.com, 24-245-84-5.ip.casscomm.com and so on: per-IP generated PTRs under the operator's own domain, the standard shape of a residential access pool. One sample carries .static.ip.casscomm.com, which is the usual carve-out for business customers on static addresses, but the bulk of the space is the generic ip. pattern. The address space itself is mostly 24.52.0.0 and 24.245.0.0 blocks, which is classic US cable allocation territory, deaggregated into /20s and /21s per serving area.
CASSCOMM's own service area is described as nine central-Illinois counties across roughly three dozen communities, offering cable TV, fibre internet and phone. The routing footprint is proportionate to that.
Notable
- Alongside the ARIN space the AS announces
103.242.192.0/22, an APNIC-range block, with the same first-partyip.casscomm.comrDNS. Post-exhaustion address acquisition means legacy /8 geography is no longer a reliable signal. - IPv6 is deployed: a full
/32is announced, which is more than many operators of this size manage.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
5 upstream, 1 downstream and 7 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 25.86K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10971- Registry name
- CASSCOMM
- Registrant
- Cass Cable TV, Inc.
- Abuse contact
- mbrown@casscomm.com
- Registered
- 2012-06-04
- Last changed
- 2012-06-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 20 with no ROA
- ROAs
- 0 authorising AS10971
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 30 naming AS10971
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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 1,783 prefixes, as published 2026-10-17. 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