Autonomous system
AS6128 CABLE-NET-1
Residential DROP-listed space ARIN Cable/DSL/ISP
Summary
Optimum (Cablevision)
isp residential eyeball cable
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.236.150 |
| Equinix Internet Exchange Chicago | Chicago, United States | 208.115.136.13 |
| New York International Internet Exchange | New York, United States | 198.32.160.186 |
| Equinix Internet Exchange New York | New York, United States | 198.32.118.17 |
Transit providers
15 upstream, 3 downstream and 35 adjacent networks observed; most-used upstreams first.
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
IPv4 919 prefixes · 4.87M addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 921 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6128- Registry name
- CABLE-NET-1
- Registrant
- Cablevision Systems Corp.
- Abuse contact
- abuse@cv.net
- Last changed
- 2023-02-07
- Allocation
- assigned
Declared
PeeringDB profile
- Name
- Cablevision Systems Corporation
- Also known as
- Altice USA
- Network type
- Cable/DSL/ISP
- Scope
- North America
- Traffic ratio
- Mostly Inbound
- Peering policy
- Open
- IRR as-set
AS6128:AS-CUSTOMERS- Present at
- 4 exchanges
- Facilities
- 5 facilities
- Website
- http://www.optimum.net
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
- RPKI
- 79% valid · 72 valid, 19 with no ROA
- ROAs
- 59 authorising AS6128
- ASPA
- no ASPA record
- IRR
- 65% registered · 59 of 91 announcements
- Route objects
- 76 naming AS6128
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
1 DROP match Announced space overlapping the DROP prefix list.
| Announced | DROP entry | Record |
|---|---|---|
| 64.15.0.0/20 | 64.15.0.0/20 | SBL530365 |
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 440 networks and 1,773 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