Country
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ASN LANDING PAGE
AS19108
SUDDENLINK-COMMUNICATIONS - Optimum
Last updated · Jul 20, 2026
Total prefixes
432
IPv4 prefixes
407
IPv6 prefixes
25
ASN summary
How to read the scale of AS19108
SUDDENLINK-COMMUNICATIONS - Optimum currently reports 432 prefixes and 59 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
SUDDENLINK-COMMUNICATIONS - Optimum is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS19108 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS19108 ASN lookupAS19108 BGPAS19108 peersAS19108 prefixesAS19108 upstreamsSUDDENLINK-COMMUNICATIONS - Optimum ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS398089
AS398089
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AS53423
AS53423
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AS394072
AS394072
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AS26867
AS26867
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AS12231
AS12231
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AS400004
AS400004
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AS396028
AS396028
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AS53488
AS53488
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AS400727
AS400727
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AS32458
AS32458
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AS46169
AS46169
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AS397354
AS397354
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AS13869
AS13869
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AS400117
AS400117
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AS22191
AS22191
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AS63400
AS63400
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AS26921
AS26921
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AS40600
AS40600
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AS47064
AS47064
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AS395183
AS395183
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AS397140
AS397140
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AS6653
AS6653
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AS40420
AS40420
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AS40919
AS40919
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AS46925
AS46925
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AS31861
AS31861
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AS32500
AS32500
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AS54958
AS54958
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AS393393
AS393393
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AS26920
AS26920
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AS22752
AS22752
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AS26793
AS26793
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AS20020
AS20020
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AS63345
AS63345
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AS400102
AS400102
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AS395276
AS395276
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AS35894
AS35894
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AS11135
AS11135
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AS400947
AS400947
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AS399445
AS399445
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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
Frequently asked questions about this ASN page
What does AS19108 represent?
AS19108 is an autonomous system number. The current source associates it with SUDDENLINK-COMMUNICATIONS - Optimum and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
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?
Open a concrete IP page to check how the address maps into AS19108, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
BGP and ASN Basics Guide
Use real IP and ASN pages to understand ASNs, BGP prefixes, peers, upstreams, and downstreams, including the limits of each snapshot.
Routing Troubleshooting and Network Analysis
Build troubleshooting context from an IP, BGP prefix, ASN, and public network relationships without treating static route data as a packet path.
Cloud Network and ASN Comparison
Compare representative cloud and edge networks by ASN, announced prefixes, peers, upstreams, and downstreams without inferring a specific host or customer workload.