$ query “AS6128” --type=asn → 1 result(s)

AS6128 · CABLE-NET-1

Cablevision Systems Corp.

AS6128 is owned by Cablevision Systems Corp. and is a residential access provider, established in the United States. The system announces an impressive 5.0 million IPv4 addresses, including a /12, and supports IPv6. Its primary geographic footprint is in the United States. This AS has recently updated its prefix announcements.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇺🇸 United States
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
83 / 45
IPv6 Prefixes (raw / aggregated)
10 / 2
IPv4 Addresses
4 993 536
Largest IPv4 Prefix
/12 (1 048 576 addresses)
Largest IPv6 Prefix
/28
Geolocated Countries
🇺🇸 United States (7 708 672 IPs)
Prefix Changed
April 29, 2026

Reputation

Reputation
Good — 75 flagged IPs out of 4 993 536 total (0.00%)

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
46 networks exchanging traffic without transit
Downstream Customers
3 downstreams buying transit
Degree
54 unique BGP neighbors
Reach
441 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3549 — LVLT-3549
  • AS3737 — AS-PTD

Prefix Lists

IPv4 Prefixes (83 total)

  • 69.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 24.184.0.0/13 (524 288 addresses (/13 prefix))
  • 68.192.0.0/13 (524 288 addresses (/13 prefix))
  • 67.80.0.0/13 (524 288 addresses (/13 prefix))
  • 47.16.0.0/13 (524 288 addresses (/13 prefix))
  • 24.44.0.0/14 (262 144 addresses (/14 prefix))
  • 148.74.0.0/15 (131 072 addresses (/15 prefix))
  • 96.56.0.0/15 (131 072 addresses (/15 prefix))
  • 74.88.0.0/15 (131 072 addresses (/15 prefix))
  • 173.2.0.0/15 (131 072 addresses (/15 prefix))
  • 148.76.0.0/15 (131 072 addresses (/15 prefix))
  • 167.206.0.0/16 (65 536 addresses (/16 prefix))
  • 108.58.0.0/16 (65 536 addresses (/16 prefix))
  • 74.90.0.0/16 (65 536 addresses (/16 prefix))
  • 24.228.0.0/16 (65 536 addresses (/16 prefix))
  • 75.99.0.0/16 (65 536 addresses (/16 prefix))
  • 173.220.0.0/16 (65 536 addresses (/16 prefix))
  • 174.44.0.0/16 (65 536 addresses (/16 prefix))
  • 75.127.128.0/17 (32 768 addresses (/17 prefix))
  • 144.62.128.0/17 (32 768 addresses (/17 prefix))
  • 173.251.0.0/17 (32 768 addresses (/17 prefix))
  • 24.146.128.0/17 (32 768 addresses (/17 prefix))
  • 104.148.128.0/17 (32 768 addresses (/17 prefix))
  • 104.246.0.0/17 (32 768 addresses (/17 prefix))
  • 107.188.0.0/17 (32 768 addresses (/17 prefix))
  • 24.38.0.0/17 (32 768 addresses (/17 prefix))
  • 50.29.0.0/17 (32 768 addresses (/17 prefix))
  • 142.54.64.0/18 (16 384 addresses (/18 prefix))
  • 24.38.192.0/18 (16 384 addresses (/18 prefix))
  • 24.89.128.0/18 (16 384 addresses (/18 prefix))
  • 108.170.64.0/18 (16 384 addresses (/18 prefix))
  • 108.179.0.0/18 (16 384 addresses (/18 prefix))
  • 108.162.0.0/18 (16 384 addresses (/18 prefix))
  • 173.229.64.0/18 (16 384 addresses (/18 prefix))
  • 216.255.96.0/19 (8 192 addresses (/19 prefix))
  • 24.157.32.0/19 (8 192 addresses (/19 prefix))
  • 24.246.96.0/19 (8 192 addresses (/19 prefix))
  • 63.247.160.0/19 (8 192 addresses (/19 prefix))
  • 69.27.224.0/19 (8 192 addresses (/19 prefix))
  • 198.46.96.0/19 (8 192 addresses (/19 prefix))
  • 209.140.32.0/19 (8 192 addresses (/19 prefix))
  • 162.216.56.0/21 (2 048 addresses (/21 prefix))
  • 192.208.120.0/21 (2 048 addresses (/21 prefix))
  • 198.182.247.0/24 (256 addresses (/24 prefix))
  • 63.142.20.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (10 total)

  • 2600:4800::/28
  • 2602:230::/32