Country
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ASN LANDING PAGE
AS21339
CONTINGENCYNETWORKS - Contingency Networks Ltd
Last updated · Apr 4, 2026
Total prefixes
7
IPv4 prefixes
7
IPv6 prefixes
0
ASN summary
How to read the scale of AS21339
CONTINGENCYNETWORKS - Contingency Networks Ltd currently shows 7 prefixes and 34 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 AS21339?
CONTINGENCYNETWORKS - Contingency Networks Ltd 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 AS21339 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
AS21339 ASN lookupAS21339 BGPAS21339 peersAS21339 prefixesAS21339 upstreamsCONTINGENCYNETWORKS - Contingency Networks Ltd ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Detailed data for this ASN is not available right now.
Peers
AS3170
AS3170
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AS6939
AS6939
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AS22356
AS22356
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AS137409
AS137409
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AS20562
AS20562
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AS7713
AS7713
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AS4455
AS4455
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AS14840
AS14840
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AS34927
AS34927
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AS39351
AS39351
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AS917
AS917
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AS6204
AS6204
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AS6894
AS6894
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AS9009
AS9009
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AS24482
AS24482
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AS25160
AS25160
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AS28792
AS28792
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AS29049
AS29049
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AS31742
AS31742
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AS35266
AS35266
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AS36236
AS36236
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AS39120
AS39120
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AS39122
AS39122
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AS48070
AS48070
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AS48185
AS48185
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AS49544
AS49544
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AS50300
AS50300
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AS61049
AS61049
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AS198150
AS198150
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AS200612
AS200612
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AS207841
AS207841
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AS212483
AS212483
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AS215638
AS215638
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AS263444
AS263444
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 158.94.215.0/24 | AS21339 | — |
| 176.124.68.0/23 | AS21339 | — |
| 185.61.164.0/22 | AS21339 | — |
| 193.187.99.0/24 | AS21339 | — |
| 45.143.120.0/23 | AS21339 | — |
| 45.143.122.0/23 | AS21339 | — |
| 77.93.143.0/24 | AS21339 | — |
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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 AS21339 represent?
AS21339 is an autonomous system number used to identify an independently operated network. The current page associates it with CONTINGENCYNETWORKS - Contingency Networks Ltd 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 AS21339 page?
They help explain the scale, interconnection depth, and route structure of AS21339. 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 AS21339?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS21339, 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.