asn.dev

Autonomous system

AS22442 HOU-PHONOSCOPE

Unclassified ARIN NSP

IPv4 addresses 24.58K 50 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 1 recorded by PCH
Upstreams 4 9 downstream
Flagged prefixes 0 none

Summary

Phonoscope

United States of America · AI-generated

cable fiber houston residential

The AS handle HOU-PHONOSCOPE is held by Phonoscope, Inc.

What it's used for

  • The address space carries residential and business access traffic, evidenced by netnames like PHONOSCOPE-NET-04 and registrants such as Phonoscope Cable Mid-Downtown Houston and Phonoscope Cable Modem West Houston.
  • The network announces 24320 IPv4 addresses across 51 prefixes and 1 IPv6 prefix, with 21 observed neighbours, indicating a local access provider rather than a transit carrier.

Notable

  • Registrants consistently identify as Phonoscope entities, including specific cable and fiber divisions, aligning with the announcer.
  • Phonoscope is a long-standing Houston-based telecommunications company that has provided cable television and internet services since the 1960s and operates a metro fiber network.
  • The inventory consists of multiple /22 and /23 blocks in the 66.60, 66.249, 74.124, 205.196, and 72.20 ranges, reflecting a fragmented but cohesive local address estate.

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 States206.53.202.21

Transit providers

4 upstream, 9 downstream and 15 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS1299Arelion Sweden AB2,260
AS6939Hurricane Electric LLC474
AS971PureVoltage Hosting Inc.49
AS14907Wikimedia Foundation Inc.49

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

Shape and geography

IPv4 50 prefixes · 24.58K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America51

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS22442
Registry name
HOU-PHONOSCOPE
Registrant
Phonoscope, Inc.
Abuse contact
abuse@phonoscope.com
Registered
2001-09-27
Last changed
2017-07-26
Allocation
assigned

Declared

PeeringDB profile

self-reported
Name
Phonoscope
Also known as
Phonoscope Enterprise Group
Network type
NSP
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Open
IRR as-set
AS-PHONOSCOPE
Present at
1 exchanges
Facilities
5 facilities
Website
https://www.phonoscope.com/

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 50 with no ROA
ROAs
0 authorising AS22442
ASPA
no ASPA record
IRR
100% registered · 50 of 50 announcements
Route objects
78 naming AS22442

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

Cross-check