Country
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ASN LANDING PAGE
AS19108
SUDDENLINK-COMMUNICATIONS - Optimum
Last updated · Apr 4, 2026
Total prefixes
443
IPv4 prefixes
419
IPv6 prefixes
24
ASN summary
How to read the scale of AS19108
SUDDENLINK-COMMUNICATIONS - Optimum currently shows 443 prefixes and 57 upstream, downstream, or peer relationships. Larger prefix inventories often indicate broader network footprint, but they should still be read together with country and peering context.
When is an ASN page most useful?
ASN landing pages are more useful than a single IP page when you want cloud provider attribution, routing research, infrastructure comparison, or network topology analysis at the organization level.
How should you read the country, organization, and role of AS19108?
SUDDENLINK-COMMUNICATIONS - Optimum is currently associated with an unknown region. Country data is only a starting point; the more important signals are the organization name, website, prefix volume, and peering relationships that reveal whether the network behaves like a cloud platform, ISP, CDN, or enterprise backbone.
What should you inspect next after the AS19108 page?
This page is currently showing live ASN data that can be used for peer, prefix, and network scale analysis. The most useful next step is usually to return to a related IP landing page, then compare that concrete address with this ASN profile and with broader topic pages for routing, cloud attribution, or WHOIS ownership analysis.
Search intents this ASN page helps cover
AS19108 ASN lookupAS19108 BGPAS19108 peersAS19108 prefixesAS19108 upstreamsSUDDENLINK-COMMUNICATIONS - Optimum ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS53423
AS53423
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AS398089
AS398089
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AS394072
AS394072
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AS26867
AS26867
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AS396028
AS396028
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AS53488
AS53488
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AS12231
AS12231
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AS400727
AS400727
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AS397354
AS397354
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AS32458
AS32458
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AS46169
AS46169
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AS400117
AS400117
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AS32927
AS32927
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AS22191
AS22191
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AS395046
AS395046
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AS63400
AS63400
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AS13869
AS13869
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AS40919
AS40919
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AS26921
AS26921
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AS6653
AS6653
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AS26920
AS26920
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AS46209
AS46209
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AS47064
AS47064
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AS397140
AS397140
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AS32500
AS32500
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AS40420
AS40420
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AS40600
AS40600
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AS54958
AS54958
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AS393393
AS393393
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AS22752
AS22752
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AS31861
AS31861
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AS46925
AS46925
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AS395183
AS395183
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AS400233
AS400233
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AS400947
AS400947
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AS26793
AS26793
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AS20020
AS20020
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AS400102
AS400102
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AS11135
AS11135
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AS400004
AS400004
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Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 167.160.140.0/22 | AS19108 | — |
| 173.216.0.0/15 | AS19108 | — |
| 173.216.0.0/16 | AS19108 | — |
| 173.216.124.0/22 | AS19108 | — |
| 173.216.128.0/22 | AS19108 | — |
| 173.216.242.0/24 | AS19108 | — |
| 173.216.247.0/24 | AS19108 | — |
| 173.216.248.0/24 | AS19108 | — |
| 173.217.0.0/16 | AS19108 | — |
| 173.217.128.0/20 | AS19108 | — |
| 173.218.0.0/16 | AS19108 | — |
| 173.218.208.0/20 | AS19108 | — |
| 173.218.224.0/20 | AS19108 | — |
| 173.218.24.0/22 | AS19108 | — |
| 173.218.240.0/21 | AS19108 | — |
| 173.218.251.0/24 | AS19108 | — |
| 173.218.28.0/22 | AS19108 | — |
| 173.218.32.0/22 | AS19108 | — |
| 173.218.36.0/22 | AS19108 | — |
| 173.218.40.0/22 | AS19108 | — |
| 173.218.44.0/22 | AS19108 | — |
| 173.218.48.0/22 | AS19108 | — |
| 173.218.64.0/22 | AS19108 | — |
| 173.218.68.0/22 | AS19108 | — |
| 173.218.72.0/22 | AS19108 | — |
| 173.218.76.0/22 | AS19108 | — |
| 173.218.80.0/22 | AS19108 | — |
| 173.218.84.0/22 | AS19108 | — |
| 173.218.88.0/22 | AS19108 | — |
| 173.218.92.0/22 | AS19108 | — |
| 173.218.96.0/22 | AS19108 | — |
| 173.219.0.0/17 | AS19108 | — |
| 173.219.112.0/21 | AS19108 | — |
| 173.219.128.0/18 | AS19108 | — |
| 173.219.128.0/21 | AS19108 | — |
| 173.219.144.0/23 | AS19108 | — |
| 173.219.176.0/20 | AS19108 | — |
| 173.219.3.0/24 | AS19108 | — |
| 173.219.4.0/24 | AS19108 | — |
| 173.219.43.0/24 | AS19108 | — |
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Related lookups and next steps
WHOIS vs ASN Ownership Guide
Continue from this ASN into the differences between WHOIS ownership and ASN ownership.
Routing Troubleshooting and Network Analysis
Continue from this ASN into route troubleshooting and network analysis.
Cloud Network and ASN Comparison
Useful when you want to compare this ASN against larger cloud and edge networks.
WHOIS and IP Ownership Guide
Continue from the ASN page into WHOIS and ownership verification.
Frequently asked questions about this ASN page
What does AS19108 represent?
AS19108 is an autonomous system number used to identify an independently operated network. The current page associates it with SUDDENLINK-COMMUNICATIONS - Optimum in an unknown region, which helps determine whether it behaves like a cloud provider, ISP, CDN, or enterprise backbone.
What are peers, upstreams, and prefixes useful for on the AS19108 page?
They help explain the scale, interconnection depth, and route structure of AS19108. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS19108?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS19108, then continue into cloud, WHOIS, or routing topic pages to understand the network in a broader context.
Related topics
WHOIS vs ASN Ownership Guide
Understand why WHOIS ownership and ASN ownership can differ, and how to combine both when deciding who really owns or operates an IP.
WHOIS and IP Ownership Guide
Use WHOIS, ASN, prefixes, and organization data to determine who ultimately owns an IP, range, or resolved domain target.
BGP and ASN Basics Guide
Learn what ASN, BGP routes, prefixes, upstreams, downstreams, and peers mean, then explore real ASN pages.
Cloud Network and ASN Comparison
Compare large cloud and edge networks such as Google, Cloudflare, Microsoft, and Amazon through their ASN landing pages.