Autonomous system
AS40933 TRIANGLE-COMMUNICATIONS
Unclassified ARIN
Summary
Triangle Communications
isp cable dsl residential
TRIANGLE-COMMUNICATIONS is operated by Triangle Communications.
What it's used for
- The address space carries residential and business internet access, with netnames including
TTCA-4,TTCA-BLOCK, and numerousTRIANGLE-REALLOCATIONentries. - The AS announces 33,280 IPv4 addresses across 42 prefixes while maintaining only 3 observed neighbours, a ratio characteristic of an access network serving local subscribers rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs and voice services for customers in Montana, where the operator functions as a telecommunications cooperative providing Internet and Phone service.
Notable
- All registrants in the evidence pack are listed as Triangle Communications, consistent with the AS holder.
- The inventory is composed of a mix of larger blocks like 72.255.128.0/18 and many smaller /23 and /24 prefixes, reflecting a fragmented allocation history typical of regional ISPs.
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 2026-10-22, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 42 prefixes · 33.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 42 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS40933- Registry name
- TRIANGLE-COMMUNICATIONS
- Registrant
- Triangle Communications
- Abuse contact
- abuse@itstriangle.net
- Registered
- 2012-11-19
- Last changed
- 2012-11-19
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 142 valid, 0 with no ROA
- ROAs
- 79 authorising AS40933
- ASPA
- no ASPA record
- IRR
- 100% registered · 142 of 142 announcements
- Route objects
- 143 naming AS40933
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 2026-10-23. 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