Country
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ASN LANDING PAGE
AS513
CERN - CERN - European Organization for Nuclear Research
Last updated · Apr 4, 2026
Total prefixes
22
IPv4 prefixes
20
IPv6 prefixes
2
ASN summary
How to read the scale of AS513
CERN - CERN - European Organization for Nuclear Research currently shows 22 prefixes and 46 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 AS513?
CERN - CERN - European Organization for Nuclear Research 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 AS513 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
AS513 ASN lookupAS513 BGPAS513 peersAS513 prefixesAS513 upstreamsCERN - CERN - European Organization for Nuclear Research ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS25091
AS25091
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AS21320
AS21320
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AS174
AS174
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AS6939
AS6939
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AS29222
AS29222
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AS20965
AS20965
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AS6730
AS6730
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AS293
AS293
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AS13335
AS13335
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AS13030
AS13030
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AS15830
AS15830
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AS6509
AS6509
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AS2907
AS2907
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AS4455
AS4455
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AS9885
AS9885
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AS2603
AS2603
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AS30781
AS30781
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AS11537
AS11537
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AS15576
AS15576
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AS559
AS559
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AS17579
AS17579
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AS2200
AS2200
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AS2027
AS2027
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AS1103
AS1103
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AS15169
AS15169
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AS47176
AS47176
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AS205112
AS205112
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AS22335
AS22335
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AS2018
AS2018
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AS59624
AS59624
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AS20932
AS20932
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AS12350
AS12350
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AS42
AS42
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AS15547
AS15547
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AS10764
AS10764
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AS198330
AS198330
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AS15796
AS15796
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AS24904
AS24904
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AS28810
AS28810
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AS33845
AS33845
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 128.141.0.0/16 | AS513 | — |
| 128.142.0.0/16 | AS513 | — |
| 137.138.0.0/16 | AS513 | — |
| 185.249.56.0/22 | AS513 | — |
| 188.184.0.0/16 | AS513 | — |
| 188.185.0.0/16 | AS513 | — |
| 192.16.155.0/24 | AS513 | — |
| 192.16.156.0/22 | AS513 | — |
| 192.16.160.0/22 | AS513 | — |
| 192.16.164.0/23 | AS513 | — |
| 192.16.166.0/24 | AS513 | — |
| 192.65.183.0/24 | AS513 | — |
| 192.65.184.0/21 | AS513 | — |
| 192.65.192.0/22 | AS513 | — |
| 192.65.196.0/23 | AS513 | — |
| 192.91.236.0/22 | AS513 | — |
| 192.91.240.0/22 | AS513 | — |
| 192.91.244.0/23 | AS513 | — |
| 192.91.246.0/24 | AS513 | — |
| 194.12.128.0/18 | AS513 | — |
| 2001:1458::/32 | AS513 | — |
| 2001:1459::/32 | AS513 | — |
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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 AS513 represent?
AS513 is an autonomous system number used to identify an independently operated network. The current page associates it with CERN - CERN - European Organization for Nuclear Research 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 AS513 page?
They help explain the scale, interconnection depth, and route structure of AS513. 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 AS513?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS513, 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.