AS19108 Optimum 🇺🇸 US

Announcing 434 prefixes, seen at the RIS collectors.

IPv4 prefixes
407
6,981,120 (27,270 × /24)
IPv6 prefixes
27
1.8 × /32
Upstreams
4
transit providers observed
Peers
5
settlement-free adjacencies
Downstreams
73
transit customers observed
Customer cone
96
ASes reachable through it

Registry and operator data

AS number
AS19108
Name
Optimum
Organisation
Suddenlink Communications
Country
🇺🇸 US
RIR
ARIN
Allocated
2000-11-20
Network type
Cable/DSL/ISP
Traffic levels
1-5Tbps
Scope
North America
Peering policy
Selective
IRR as-set
AS-SUDDENLINK-TRANSIT
PeeringDB
net/1183
Exchanges
4
Facilities
6

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

25 valid (5.8%) 0 invalid (0.0%) 409 no ROA (94.2%)

Announced prefixes

407 in total

Prefix RPKI Peers Sample path First seen
209.33.54.0/24 v4 no ROA 41 1490719108 2026-09-18
209.207.0.0/18 v4 no ROA 41 1490719108 2026-09-18
209.207.62.0/23 v4 no ROA 42 1490719108 2026-09-18
209.209.185.0/24 v4 no ROA 41 1490719108 2026-09-18
209.209.188.0/24 v4 no ROA 41 1490719108 2026-10-02
216.134.72.0/21 v4 no ROA 41 1490719108 2026-09-18
216.134.80.0/20 v4 no ROA 41 1490719108 2026-09-18