asn.dev

Autonomous system

AS23141 DTCNET

Unclassified ARIN

IPv4 addresses 15.87K 8 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 3 0 downstream
Flagged prefixes 0 none

Summary

Doylestown Communications

United States of America · AI-generated

residential cable ohio isp

DTCNET is the AS handle for Doylestown Communications Inc.

What it's used for

  • The address space carries residential cable and dial-up access, evidenced by reverse DNS entries such as cable-pool151-cs254.doycomm.com, akro-pool2-cs125.pool.ohio.net, and akro2-max3-cs-26.dialne.bright.net.
  • The AS announces 15,872 IPv4 addresses across 8 prefixes with only 3 observed neighbours, a ratio characteristic of an access network rather than a transit provider.

Notable

  • All registrants for the announced prefixes are listed as Doylestown Communications Inc, matching the AS holder.
  • The address inventory is concentrated in the 66.219.128.0/19 block and its subdivisions, all registered under the netname DTC-BLK-1.

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

3 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS19009OneCleveland132
AS3356Level 3 Parent, LLC57
AS7018AT&T Enterprises, LLC4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 8 prefixes · 15.87K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America8

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS23141
Registry name
DTCNET
Registrant
Doylestown Communications Inc
Abuse contact
hostmaster@doylestowncommunications.com
Registered
2002-01-30
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS23141
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
1 naming AS23141

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: 448 networks and 1,849 prefixes, as published 2026-10-30. 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