Country
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ASN LANDING PAGE
AS513
CERN CERN - European Organization for Nuclear Research
Last updated · Jul 20, 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 reports 22 prefixes and 46 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?
CERN CERN - European Organization for Nuclear Research 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 AS513 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
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
—
AS6939
AS6939
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AS29222
AS29222
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AS11537
AS11537
—
AS6730
AS6730
—
AS20965
AS20965
—
AS293
AS293
—
AS13335
AS13335
—
AS13030
AS13030
—
AS15830
AS15830
—
AS6509
AS6509
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AS2907
AS2907
—
AS9885
AS9885
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AS2603
AS2603
—
AS30781
AS30781
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AS15576
AS15576
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AS559
AS559
—
AS17579
AS17579
—
AS2200
AS2200
—
AS1103
AS1103
—
AS2027
AS2027
—
AS15169
AS15169
—
AS47176
AS47176
—
AS43142
AS43142
—
AS205112
AS205112
—
AS2018
AS2018
—
AS22335
AS22335
—
AS59624
AS59624
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AS20932
AS20932
—
AS42
AS42
—
AS15547
AS15547
—
AS10764
AS10764
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AS12350
AS12350
—
AS21217
AS21217
—
AS198330
AS198330
—
AS15796
AS15796
—
AS21449
AS21449
—
AS24904
AS24904
—
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
Frequently asked questions about this ASN page
What does AS513 represent?
AS513 is an autonomous system number. The current source associates it with CERN CERN - European Organization for Nuclear Research 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 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?
Open a concrete IP page to check how the address maps into AS513, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
Related topics
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