Country
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ASN LANDING PAGE
AS21700
NEPTUNE-NETWORKS - Neptune Networks, LLC
Last updated · Jul 20, 2026
Total prefixes
9
IPv4 prefixes
7
IPv6 prefixes
2
ASN summary
How to read the scale of AS21700
NEPTUNE-NETWORKS - Neptune Networks, LLC currently reports 9 prefixes and 80 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?
NEPTUNE-NETWORKS - Neptune Networks, LLC 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 AS21700 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
AS21700 ASN lookupAS21700 BGPAS21700 peersAS21700 prefixesAS21700 upstreamsNEPTUNE-NETWORKS - Neptune Networks, LLC ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS400967
AS400967
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AS18470
AS18470
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AS53343
AS53343
—
AS53727
AS53727
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AS400312
AS400312
—
AS54098
AS54098
—
AS400366
AS400366
—
AS961
AS961
—
AS36072
AS36072
—
AS402668
AS402668
—
AS35866
AS35866
—
AS63183
AS63183
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AS63229
AS63229
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AS401363
AS401363
—
AS19949
AS19949
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AS402164
AS402164
—
AS401227
AS401227
—
AS153039
AS153039
—
AS205956
AS205956
—
AS206208
AS206208
—
AS20438
AS20438
—
AS400490
AS400490
—
AS32042
AS32042
—
AS216100
AS216100
—
AS219370
AS219370
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AS200766
AS200766
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AS212123
AS212123
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AS219070
AS219070
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AS21820
AS21820
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AS203943
AS203943
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AS215887
AS215887
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AS402240
AS402240
—
AS959
AS959
—
AS402450
AS402450
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AS57266
AS57266
—
AS400550
AS400550
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AS402270
AS402270
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AS206981
AS206981
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AS400941
AS400941
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AS207890
AS207890
—
Peers
AS6939
AS6939
—
AS3257
AS3257
—
AS174
AS174
—
AS9498
AS9498
—
AS13786
AS13786
—
AS7195
AS7195
—
AS9002
AS9002
—
AS37468
AS37468
—
AS1031
AS1031
—
AS137409
AS137409
—
AS64049
AS64049
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AS58453
AS58453
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AS8359
AS8359
—
AS32787
AS32787
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AS22356
AS22356
—
AS13030
AS13030
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AS8966
AS8966
—
AS6128
AS6128
—
AS24482
AS24482
—
AS41327
AS41327
—
AS263444
AS263444
—
AS18678
AS18678
—
AS20473
AS20473
—
AS16276
AS16276
—
AS13536
AS13536
—
AS263903
AS263903
—
AS9299
AS9299
—
AS28283
AS28283
—
AS2603
AS2603
—
AS262355
AS262355
—
AS21949
AS21949
—
AS16509
AS16509
—
AS17378
AS17378
—
AS262761
AS262761
—
AS57463
AS57463
—
AS199524
AS199524
—
AS51185
AS51185
—
AS61573
AS61573
—
AS52320
AS52320
—
AS29838
AS29838
—
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 157.254.142.0/24 | AS21700 | — |
| 172.82.22.0/23 | AS21700 | — |
| 192.109.165.0/24 | AS21700 | — |
| 209.151.100.0/22 | AS21700 | — |
| 216.126.57.0/24 | AS21700 | — |
| 216.74.121.0/24 | AS21700 | — |
| 23.157.160.0/24 | AS21700 | — |
| 2602:fe2e::/37 | AS21700 | — |
| 2606:f1c0::/32 | AS21700 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS21700 represent?
AS21700 is an autonomous system number. The current source associates it with NEPTUNE-NETWORKS - Neptune Networks, LLC 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 AS21700 page?
They help explain the scale, interconnection depth, and route structure of AS21700. 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 AS21700?
Open a concrete IP page to check how the address maps into AS21700, 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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Routing Troubleshooting and Network Analysis
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Cloud Network and ASN Comparison
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