asn.dev

Autonomous system

AS23481 HCTC-LINK1

Unclassified ARIN

IPv4 addresses 22.53K 11 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 2 2 downstream
Flagged prefixes 0 none

Summary

Hill Country Telephone Cooperative

United States of America · AI-generated

residential dsl cooperative texas

HCTC-LINK1 is operated by Hill Country Telephone Cooperative, Inc.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries such as dsl.ssdl.hctcnetworks.net and dsl.mtho.hctcnetworks.net, alongside network infrastructure hosts like net23.69-4-52-0.frcn.hctcnetworks.net.
  • The AS announces 22,528 IPv4 addresses across 11 prefixes and maintains 15 observed neighbours, a ratio consistent with an access network serving local subscribers rather than a transit provider.

Notable

  • All registrants in the RDAP data align with the announcer, consistently listing Hill Country Telephone Cooperative, Inc. with netnames such as HCTC-BLKS-1 and HCTC-3.
  • The inventory consists of 11 IPv4 prefixes ranging from /20 to /23 blocks, 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

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX DallasDallas, United States206.53.202.154

Transit providers

2 upstream, 2 downstream and 5 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB825
AS174Cogent Communications, LLC637

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 11 prefixes · 22.53K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America11

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS23481
Registry name
HCTC-LINK1
Registrant
Hill Country Telephone Cooperative, Inc.
Abuse contact
abuse@hctc.net
Registered
2002-03-26
Last changed
2013-01-14
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 25 valid, 0 with no ROA
ROAs
28 authorising AS23481
ASPA
no ASPA record
IRR
100% registered · 25 of 25 announcements
Route objects
38 naming AS23481

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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