AS22442 — HOU-PHONOSCOPE - Phonoscope, Inc.

AS22442 announces 48 IPv4 prefixes covering 24,576 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 66.60.224.0/23
• 66.60.227.0/24
• 66.60.228.0/22
• 66.60.232.0/23
• 66.60.235.0/24
• 66.60.237.0/24
• 66.60.238.0/23
• 66.60.240.0/24
• 66.60.242.0/23
• 66.60.244.0/24
• 66.60.246.0/23
• 66.60.248.0/21
• 66.249.96.0/23
• 66.249.98.0/24
• 66.249.102.0/23
• 66.249.104.0/22
• 66.249.109.0/24
• 66.249.110.0/24
• 66.249.114.0/23
• 66.249.116.0/23
• 66.249.118.0/24
• 66.249.120.0/22
• 66.249.126.0/23
• 72.20.128.0/24
• 72.20.130.0/23
• 72.20.136.0/24
• 72.20.139.0/24
• 72.20.141.0/24
• 72.20.142.0/23
• 72.20.145.0/24
• 72.20.149.0/24
• 72.20.150.0/24
• 72.20.154.0/24
• 74.124.36.0/22
• 74.124.40.0/22
• 74.124.45.0/24
• 74.124.46.0/23
• 74.124.49.0/24
• 74.124.50.0/24
• 74.124.52.0/22
• 74.124.56.0/23
• 74.124.60.0/22
• 198.46.75.0/24
• 205.196.176.0/22
• 205.196.180.0/24
• 205.196.183.0/24
• 205.196.184.0/22
• 205.196.188.0/24
• 2605:f000::/32

Upstream networks

• AS1299 Arelion Sweden AB

Downstream networks

• AS19927 Lone Star College System District
• AS394936 -Reserved AS-
• AS400782 Harris County Public Library
• AS394309 HBU.edu
• AS63153 Stewart & Stevenson LLC
• AS393383 Spring Independent School District
• AS55291 Harris County
• AS46094 Lee College

Adjacent networks

• AS1299 Arelion Sweden AB
• AS19927 Lone Star College System District
• AS394936 -Reserved AS-
• AS400782 Harris County Public Library
• AS394309 HBU.edu
• AS63153 Stewart & Stevenson LLC
• AS393383 Spring Independent School District
• AS55291 Harris County
• AS46094 Lee College

Routing security

• RPKI: 0 valid, 0 invalid and 51 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 88% of announcements registered; 78 route objects.
• Listed in as-sets: AS-PHONOSCOPE, AS-PNAPHOU, AS-PSLIGHTWAVE, AS62499:AS-DECIX-DFW-CONNECTED, AS62499:AS-DECIX-DFW-RS, AS62499:AS-DECIX-DFW-RS-V6.

Internet exchanges

• DE-CIX Dallas — Dallas, United States