AS6128 — CABLE-NET-1

Network type: residential

AS6128 announces 189 IPv4 prefixes covering 4,867,072 addresses and 2 IPv6 prefixes.

About this network

CABLE-NET-1 is the former Cablevision network, now Optimum, a major cable broadband provider in the US Northeast owned by Altice USA.

What it's used for

• Home internet across the New York metro area and surrounding Northeast: cable (DOCSIS) and fibre for households under the Optimum brand.

Notable

• An "eyeball" network: addresses here are US home connections, commonly behind carrier-grade NAT, not servers.
• Cablevision was the dominant cable operator in the New York suburbs; Altice acquired it and rebranded it Optimum, which sits alongside Altice's Suddenlink (also now Optimum) footprint.

Interesting

• The New York tri-state area it serves is one of the densest consumer broadband markets in the United States.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 24.38.0.0/22
• 24.38.5.0/24
• 24.38.6.0/23
• 24.38.8.0/23
• 24.38.11.0/24
• 24.38.12.0/22
• 24.38.16.0/22
• 24.38.22.0/23
• 24.38.24.0/24
• 24.38.26.0/23
• 24.38.28.0/22
• 24.38.32.0/24
• 24.38.34.0/23
• 24.38.36.0/24
• 24.38.38.0/24
• 24.38.41.0/24
• 24.38.42.0/23
• 24.38.44.0/22
• 24.38.48.0/20
• 24.38.64.0/21
• 24.38.72.0/23
• 24.38.75.0/24
• 24.38.76.0/22
• 24.38.80.0/23
• 24.38.83.0/24
• 24.38.84.0/23
• 24.38.87.0/24
• 24.38.88.0/23
• 24.38.91.0/24
• 24.38.92.0/24
• 24.38.94.0/23
• 24.38.96.0/24
• 24.38.98.0/23
• 24.38.100.0/22
• 24.38.104.0/21
• 24.38.112.0/21
• 24.38.120.0/22
• 24.38.124.0/24
• 24.38.126.0/23
• 24.38.192.0/18
• 24.44.0.0/14
• 24.89.128.0/18
• 24.146.128.0/17
• 24.157.32.0/24
• 24.157.35.0/24
• 24.157.36.0/22
• 24.157.40.0/22
• 24.157.45.0/24
• 24.157.46.0/23
• 24.157.48.0/20
• 24.184.0.0/13
• 24.228.0.0/16
• 24.246.96.0/21
• 24.246.104.0/24
• 24.246.106.0/23
• 24.246.108.0/22
• 24.246.112.0/23
• 24.246.115.0/24
• 24.246.116.0/22
• 24.246.120.0/21
• 47.16.0.0/15
• 47.18.0.0/16
• 47.20.0.0/14
• 50.29.0.0/17
• 63.142.20.0/24
• 63.247.160.0/20
• 63.247.176.0/21
• 63.247.184.0/22
• 63.247.188.0/24
• 63.247.190.0/23
• 64.15.0.0/20
• 64.15.18.0/23
• 64.15.21.0/24
• 64.15.24.0/24
• 64.15.26.0/23
• 64.15.96.0/20
• 65.19.96.0/19
• 67.80.0.0/13
• 68.192.0.0/13
• 69.27.224.0/22
• 69.27.228.0/24
• 69.27.231.0/24
• 69.27.232.0/23
• 69.27.234.0/24
• 69.27.237.0/24
• 69.27.238.0/23
• 69.27.241.0/24
• 69.27.242.0/23
• 69.27.244.0/23
• 69.27.246.0/24
• 69.27.248.0/21
• 69.112.0.0/12
• 74.88.0.0/15
• 74.90.0.0/16
• 75.99.0.0/16
• 75.127.128.0/17
• 96.56.0.0/15
• 104.148.128.0/17
• 104.246.0.0/17
• 107.188.0.0/17

and 91 more.

Upstream networks

• AS174 Cogent Communications, LLC
• AS1299 Arelion Sweden AB
• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS3491 PCCW Global (HK) Ltd.
• AS9002 RETN Limited
• AS1273 IDDQD-AS
• AS577 Bell Canada
• AS3303 Swisscom (Schweiz) AG
• AS3356 Level 3 Parent, LLC
• AS852 TELUS Communications Inc.
• AS33891 Core-Backbone GmbH
• AS24482 SG.GS
• AS3737 PenTeleData Inc.
• AS293 ESnet
• AS19108 Optimum
• AS58057 Securebit AG

Downstream networks

• AS54004 Cablevision Lightpath LLC
• AS20940 Akamai International B.V.
• AS19720 Cablevision Systems Corp.

Adjacent networks

• AS54004 Cablevision Lightpath LLC
• AS3356 Level 3 Parent, LLC
• AS6461 Zayo Bandwidth
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS3491 PCCW Global (HK) Ltd.
• AS9002 RETN Limited
• AS577 Bell Canada
• AS1299 Arelion Sweden AB
• AS3303 Swisscom (Schweiz) AG
• AS852 TELUS Communications Inc.
• AS1273 IDDQD-AS
• AS293 ESnet
• AS24482 SG.GS
• AS33891 Core-Backbone GmbH
• AS20940 Akamai International B.V.
• AS19720 Cablevision Systems Corp.
• AS3737 PenTeleData Inc.
• AS19108 Optimum
• AS7922 Comcast Cable Communications, LLC
• AS58057 Securebit AG

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• New York International Internet Exchange — New York, United States
• Equinix Internet Exchange New York — New York, United States