206208 looking glass

AS6128 Cablevision Systems Corp. 🇺🇸 US

Announcing 92 prefixes, seen at the RIS collectors.

IPv4 prefixes
82
7,418,368 (28,978 × /24)
IPv6 prefixes
10
37 × /32
Upstreams
6
transit providers observed
Peers
10
settlement-free adjacencies
Downstreams
3
transit customers observed
Customer cone
425
ASes reachable through it

Registry and operator data

AS number
AS6128
Name
Cablevision Systems Corp.
Organisation
Cablevision Systems Corporation
Country
🇺🇸 US
RIR
ARIN
Network type
Cable/DSL/ISP
Traffic levels
1-5Tbps
Scope
North America
Peering policy
Open
IRR as-set
AS6128:AS-CUSTOMERS
Website
http://www.optimum.net
PeeringDB
net/9902
Exchanges
4
Facilities
5

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

72 valid (78.3%) 0 invalid (0.0%) 20 no ROA (21.7%)

Announced prefixes

92 in total

Prefix RPKI Peers Sample path First seen
24.38.0.0/17 v4 RPKI valid 42 244826128 2026-09-18
24.38.192.0/18 v4 RPKI valid 42 244826128 2026-09-18
24.44.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
24.89.128.0/18 v4 RPKI valid 42 244826128 2026-09-18
24.146.128.0/17 v4 RPKI valid 42 244826128 2026-09-18
24.157.32.0/19 v4 RPKI valid 42 244826128 2026-09-18
24.157.51.0/24 v4 RPKI valid 41 244826128 2026-09-18
24.184.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
24.188.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
24.189.218.0/24 v4 RPKI valid 42 345491746128 2026-09-18
24.228.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
24.246.96.0/19 v4 RPKI valid 42 244826128 2026-09-18
47.16.0.0/14 v4 no ROA 42 8526128 2026-09-18
47.16.0.0/15 v4 RPKI valid 42 8526128 2026-09-18
47.18.0.0/16 v4 RPKI valid 42 8526128 2026-09-18
47.20.0.0/14 v4 RPKI valid 42 8526128 2026-09-18
50.29.0.0/17 v4 RPKI valid 42 244826128 2026-09-18
63.142.20.0/24 v4 RPKI valid 41 8526128 2026-09-18
63.247.160.0/19 v4 RPKI valid 42 244826128 2026-09-18
64.15.0.0/16 v4 no ROA 3 14907191086128 2026-09-18
65.19.0.0/16 v4 no ROA 3 14907191086128 2026-09-18
67.80.0.0/13 v4 RPKI valid 42 244826128 2026-09-18
67.80.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
67.84.0.0/14 v4 RPKI valid 43 244826128 2026-09-18
68.192.0.0/13 v4 RPKI valid 42 244826128 2026-09-18
68.192.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
68.196.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
69.27.224.0/19 v4 RPKI valid 42 244826128 2026-09-18
69.27.228.0/24 v4 RPKI valid 41 244826128 2026-09-18
69.112.0.0/13 v4 RPKI valid 42 244826128 2026-09-18
69.112.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
69.116.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
69.120.0.0/13 v4 RPKI valid 42 244826128 2026-09-18
69.120.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
69.124.0.0/14 v4 RPKI valid 42 244826128 2026-09-18
74.88.0.0/15 v4 RPKI valid 42 244826128 2026-09-18
74.89.0.0/24 v4 RPKI valid 42 3454964616128 2026-09-18
74.90.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
75.99.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
75.127.128.0/17 v4 RPKI valid 42 244826128 2026-09-18
96.56.0.0/15 v4 RPKI valid 42 244826128 2026-09-18
104.148.128.0/17 v4 RPKI valid 42 244826128 2026-09-18
104.246.0.0/17 v4 RPKI valid 43 244826128 2026-09-18
107.188.0.0/17 v4 RPKI valid 42 244826128 2026-09-18
108.58.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
108.162.0.0/18 v4 RPKI valid 42 244826128 2026-09-18
108.170.64.0/18 v4 RPKI valid 42 244826128 2026-09-18
108.179.0.0/18 v4 RPKI valid 42 244826128 2026-09-18
142.54.64.0/18 v4 RPKI valid 42 244826128 2026-09-18
144.62.128.0/17 v4 RPKI valid 42 244826128 2026-09-18
148.74.0.0/15 v4 RPKI valid 43 244826128 2026-09-18
148.76.0.0/18 v4 RPKI valid 43 244826128 2026-09-18
148.76.192.0/19 v4 RPKI valid 43 244826128 2026-09-18
148.76.224.0/19 v4 RPKI valid 42 244826128 2026-09-18
148.77.128.0/17 v4 RPKI valid 43 244826128 2026-09-18
162.216.56.0/21 v4 RPKI valid 43 244826128 2026-09-18
167.206.0.0/16 v4 no ROA 1 580576128 2026-09-18
167.206.0.0/19 v4 no ROA 42 244826128 2026-09-18
167.206.32.0/21 v4 no ROA 42 8526128 2026-09-18
167.206.40.0/22 v4 no ROA 42 8526128 2026-09-18
167.206.44.0/24 v4 no ROA 42 8526128 2026-09-18
167.206.45.0/24 v4 no ROA 40 8526128 2026-09-18
167.206.46.0/23 v4 no ROA 43 8526128 2026-09-18
167.206.48.0/20 v4 no ROA 43 8526128 2026-09-18
167.206.64.0/19 v4 no ROA 43 8526128 2026-09-18
167.206.96.0/20 v4 no ROA 43 8526128 2026-09-18
167.206.112.0/22 v4 no ROA 43 8526128 2026-09-18
167.206.113.0/24 v4 no ROA 42 345491746128 2026-09-18
167.206.116.0/23 v4 no ROA 43 8526128 2026-09-18
167.206.121.0/24 v4 no ROA 42 345491746128 2026-09-18
167.206.124.0/22 v4 no ROA 43 8526128 2026-09-18
167.206.128.0/17 v4 no ROA 43 8526128 2026-09-18
173.2.0.0/15 v4 RPKI valid 42 244826128 2026-09-18
173.220.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
173.229.64.0/18 v4 RPKI valid 42 244826128 2026-09-18
173.251.0.0/17 v4 RPKI valid 42 244826128 2026-09-18
174.44.0.0/16 v4 RPKI valid 42 244826128 2026-09-18
192.208.120.0/21 v4 RPKI valid 43 244826128 2026-09-18
198.46.96.0/19 v4 RPKI valid 42 244826128 2026-09-18
198.182.247.0/24 v4 no ROA 43 34549646137376128 2026-09-18
209.140.32.0/19 v4 RPKI valid 42 244826128 2026-09-18
216.255.96.0/19 v4 RPKI valid 42 244826128 2026-09-18
2600:4800::/28 v6 RPKI valid 37 244826128 2026-09-18
2600:4800::/30 v6 RPKI valid 37 244826128 2026-09-18
2600:4804::/30 v6 RPKI valid 37 244826128 2026-09-18
2600:4808::/30 v6 RPKI valid 34 244826128 2026-09-18
2600:4808::/32 v6 RPKI valid 34 244826128 2026-09-18
2600:4809::/32 v6 RPKI valid 34 244826128 2026-09-18
2600:480a::/32 v6 RPKI valid 34 244826128 2026-09-18
2600:480b::/32 v6 RPKI valid 34 244826128 2026-09-18
2600:480c::/30 v6 RPKI valid 37 244826128 2026-09-18
2602:230::/32 v6 RPKI valid 37 244826128 2026-09-18