HomeASN LookupAS19108

AS19108 SUDDENLINK-COMMUNICATIONS - Optimum

🇺🇸
ARINassigned
Announced Prefixes (BGP)
3,082total
3,055 IPv427 IPv6
IPv4 Addresses
Allocated (RIR)2.4M
Announced (BGP)8.8M
IPv6 Addresses
Allocated (RIR)1.9×10²⁵
Announced (BGP)1.3×10²⁹
Prefix Limit (IPv4)
10,000
Prefix Limit (IPv6)
100
Country
🇺🇸 US
RIR
ARIN
Status
assigned
Allocated
2000-11-20

Routing hygiene

Score 40/100 · Medium risk
RPKI ROA coverage
0.8%
no RPKI invalid prefixes
IRR route objects
98%
55 prefixes registered for another origin
Hijack signals
0
0 announced against others' ROAs, 0 own announced by others
Upstreams
8
diversity 26/100
  • 99% of announced prefixes (3058 of 3083) have no valid ROA
  • Routes concentrated on one upstream (86% of routes)
  • 39 prefixes registered in IRR route objects for another active network and not authorized by a ROA

Based on 3,083 announced prefixes, updated daily (2026-10-26). How the score works · RPKI explained

Announced Prefixes

(BGP)1,000 of 3,082
|
Prefix
RPKI
IRR
Last Seen
24.31.17.0/24
No ROA
Other IRR
-
24.32.0.0/16
No ROA
Other IRR
-
24.32.0.0/20
No ROA--
24.32.0.0/21
No ROA--
24.32.8.0/24
No ROA--
24.32.9.0/24
No ROA--
24.32.10.0/23
No ROA--
24.32.12.0/22
No ROA--
24.32.16.0/21
No ROA--
24.32.16.0/22
No ROA--
1-10 of 1,000
1 / 100

Allocated Prefixes

(RIR)56
Prefix
Country
RIR
Status
24.31.17.0/24🇺🇸 USARINallocated
24.49.194.0/24🇺🇸 USARINallocated
24.49.200.0/24🇺🇸 USARINallocated
24.54.114.0/24🇺🇸 USARINallocated
24.72.175.0/24🇺🇸 USARINallocated
24.72.186.0/23🇺🇸 USARINallocated
24.75.113.0/24🇺🇸 USARINallocated
24.75.123.0/24🇺🇸 USARINallocated
24.75.124.0/24🇺🇸 USARINallocated
24.75.126.0/24🇺🇸 USARINallocated
1-10 of 56
1 / 6

All 3,082 announced prefixes of AS19108 →

Downstream Customers(4)

ASNName
AS18981🇺🇸SUPERNET-II - SUPERNet II
AS19245🇺🇸HOOPA-VALLEY-TRIBE - Hoopa Valley Public Utilities District
AS36658🇺🇸ANGELOASPRIME - Angelo State University
AS397886🇺🇸SUPERNET - SUPERNet

BGP Neighbours

(seen in AS paths)

Upstreams (8)

Networks AS19108 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS6128Cablevision Systems2,644
  • AS3356Level 3 Parent202
  • AS1299TWELVE99 Arelion Sweden AB105
  • AS174Cogent Communications82
  • AS6939Hurricane Electric45
  • AS3303SWISSCOM (Schweiz)2
  • AS5650Frontier Communications Of America2
  • AS19754The Fusion Network1

Downstreams (55)

Networks whose own prefixes AS19108 passes on: usually its customers.

Other adjacent networks (2)

Adjacent to AS19108 in the transit part of AS paths: peers, providers or customers.

ASPA
No ASPA0 upstreams, 4 downstreams
Listed as Upstream Provider by
4 ASNs
View full ASPA details →
External Links
ARIN WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/19108

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/19108" | jq