Country
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ASN LANDING PAGE
AS4538
ERX-CERNET-BKB - China Education and Research Network Center
Last updated · Jul 20, 2026
Total prefixes
3519
IPv4 prefixes
3510
IPv6 prefixes
9
ASN summary
How to read the scale of AS4538
ERX-CERNET-BKB - China Education and Research Network Center currently reports 3519 prefixes and 54 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?
ERX-CERNET-BKB - China Education and Research Network Center 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 AS4538 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
AS4538 ASN lookupAS4538 BGPAS4538 peersAS4538 prefixesAS4538 upstreamsERX-CERNET-BKB - China Education and Research Network Center ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS24348
AS24348
—
AS133111
AS133111
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AS9405
AS9405
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AS23911
AS23911
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AS23910
AS23910
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AS151229
AS151229
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AS139139
AS139139
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AS24361
AS24361
—
AS131578
AS131578
—
AS133465
AS133465
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AS138371
AS138371
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AS134169
AS134169
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AS24363
AS24363
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AS24349
AS24349
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AS138441
AS138441
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AS24355
AS24355
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AS24357
AS24357
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AS24362
AS24362
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AS24369
AS24369
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AS24350
AS24350
—
AS24353
AS24353
—
AS24364
AS24364
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AS24370
AS24370
—
AS138378
AS138378
—
AS24352
AS24352
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AS24371
AS24371
—
AS24358
AS24358
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AS24372
AS24372
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AS138369
AS138369
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Peers
AS174
AS174
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AS6453
AS6453
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AS6939
AS6939
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AS2914
AS2914
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AS1299
AS1299
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AS58453
AS58453
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AS140570
AS140570
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AS23764
AS23764
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AS23910
AS23910
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AS4134
AS4134
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AS3491
AS3491
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AS23911
AS23911
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AS4837
AS4837
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AS4635
AS4635
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AS9808
AS9808
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AS7660
AS7660
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AS8359
AS8359
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AS7497
AS7497
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AS24482
AS24482
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AS36236
AS36236
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AS49544
AS49544
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AS7473
AS7473
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AS9304
AS9304
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AS15412
AS15412
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AS23855
AS23855
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 1.184.0.0/15 | AS4538 | — |
| 1.51.0.0/16 | AS4538 | — |
| 1.51.112.0/24 | AS4538 | — |
| 1.51.120.0/21 | AS4538 | — |
| 1.51.192.0/18 | AS4538 | — |
| 1.51.3.0/24 | AS4538 | — |
| 101.4.0.0/14 | AS4538 | — |
| 101.4.0.0/20 | AS4538 | — |
| 101.4.140.0/24 | AS4538 | — |
| 101.4.156.0/24 | AS4538 | — |
| 101.4.16.0/20 | AS4538 | — |
| 101.4.160.0/23 | AS4538 | — |
| 101.4.162.0/23 | AS4538 | — |
| 101.4.192.0/18 | AS4538 | — |
| 101.4.2.0/24 | AS4538 | — |
| 101.4.32.0/20 | AS4538 | — |
| 101.4.48.0/21 | AS4538 | — |
| 101.4.56.0/24 | AS4538 | — |
| 101.4.63.0/24 | AS4538 | — |
| 101.4.64.0/20 | AS4538 | — |
| 101.5.0.0/16 | AS4538 | — |
| 101.5.0.0/17 | AS4538 | — |
| 101.5.128.0/17 | AS4538 | — |
| 101.5.128.0/21 | AS4538 | — |
| 101.5.136.0/21 | AS4538 | — |
| 101.5.24.0/21 | AS4538 | — |
| 101.5.40.0/21 | AS4538 | — |
| 101.6.0.0/16 | AS4538 | — |
| 101.6.0.0/17 | AS4538 | — |
| 101.6.128.0/17 | AS4538 | — |
| 101.6.16.0/23 | AS4538 | — |
| 101.6.6.0/24 | AS4538 | — |
| 101.7.0.0/22 | AS4538 | — |
| 101.7.128.0/18 | AS4538 | — |
| 101.7.160.0/24 | AS4538 | — |
| 101.7.192.0/20 | AS4538 | — |
| 101.7.208.0/22 | AS4538 | — |
| 101.7.224.0/20 | AS4538 | — |
| 101.7.64.0/18 | AS4538 | — |
| 101.76.0.0/15 | AS4538 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS4538 represent?
AS4538 is an autonomous system number. The current source associates it with ERX-CERNET-BKB - China Education and Research Network Center 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 AS4538 page?
They help explain the scale, interconnection depth, and route structure of AS4538. 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 AS4538?
Open a concrete IP page to check how the address maps into AS4538, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
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