Autonomous system
AS27235 CVC-INET-33
Unclassified ARIN
Summary
Colorado Valley Communications
isp residential cable us
The AS handle CVC-INET-33 is held by Colorado Valley Communications, Inc.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries such as
dsl-zpool3-254.cvctx.comandnet10-254.cvctx.com. - The network announces 7424 IPv4 addresses across 4 prefixes, with only 3 observed neighbours, indicating a local access provider rather than a transit carrier.
Notable
- Registrants for the three largest prefixes are consistent with the announcer, identified as COLORADO VALLEY COMMUNICATIONS, INC.
- The smallest prefix, 63.97.243.0/24, is registered to Verizon Business with the netname UUNET63, suggesting a legacy or leased block within the inventory.
- The inventory consists of four distinct IPv4 blocks with no IPv6 prefixes 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 4 prefixes · 7.42K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS27235- Registry name
- CVC-INET-33
- Registrant
- COLORADO VALLEY COMMUNICATIONS, INC.
- Abuse contact
- lukes@coloradovalley.com
- Registered
- 2007-11-26
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS27235
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 6 naming AS27235
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: 436 networks and 1,771 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