Country
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ASN LANDING PAGE
AS21700
NEPTUNE-NETWORKS - Neptune Networks, LLC
Last updated · Apr 10, 2026
Total prefixes
10
IPv4 prefixes
8
IPv6 prefixes
2
ASN summary
How to read the scale of AS21700
NEPTUNE-NETWORKS - Neptune Networks, LLC currently shows 10 prefixes and 80 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 AS21700?
NEPTUNE-NETWORKS - Neptune Networks, LLC 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 AS21700 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
AS21700 ASN lookupAS21700 BGPAS21700 peersAS21700 prefixesAS21700 upstreamsNEPTUNE-NETWORKS - Neptune Networks, LLC ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS53343
AS53343
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AS54098
AS54098
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AS400967
AS400967
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AS53727
AS53727
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AS63183
AS63183
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AS35866
AS35866
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AS400312
AS400312
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AS63229
AS63229
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AS961
AS961
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AS36072
AS36072
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AS18470
AS18470
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AS400550
AS400550
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AS401227
AS401227
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AS205956
AS205956
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AS401363
AS401363
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AS402164
AS402164
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AS46983
AS46983
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AS153039
AS153039
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AS15257
AS15257
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AS19949
AS19949
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AS20438
AS20438
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AS400490
AS400490
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AS17138
AS17138
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AS211544
AS211544
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AS400941
AS400941
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AS214828
AS214828
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AS400366
AS400366
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AS402240
AS402240
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AS200819
AS200819
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AS21820
AS21820
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AS203943
AS203943
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AS215207
AS215207
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AS215887
AS215887
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AS402450
AS402450
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AS152848
AS152848
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AS959
AS959
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AS206208
AS206208
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AS207890
AS207890
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AS213092
AS213092
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AS399914
AS399914
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Peers
AS174
AS174
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AS6939
AS6939
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AS3257
AS3257
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AS7195
AS7195
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AS13786
AS13786
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AS9002
AS9002
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AS9498
AS9498
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AS37468
AS37468
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AS58453
AS58453
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AS64049
AS64049
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AS8359
AS8359
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AS137409
AS137409
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AS1031
AS1031
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AS57463
AS57463
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AS32787
AS32787
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AS22356
AS22356
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AS13030
AS13030
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AS28283
AS28283
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AS6128
AS6128
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AS263444
AS263444
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AS24482
AS24482
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AS265269
AS265269
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AS41327
AS41327
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AS13536
AS13536
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AS263903
AS263903
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AS20473
AS20473
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AS262355
AS262355
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AS9299
AS9299
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AS16276
AS16276
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AS18678
AS18678
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AS2603
AS2603
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AS21949
AS21949
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AS16509
AS16509
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AS29802
AS29802
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AS33891
AS33891
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AS28663
AS28663
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AS17378
AS17378
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AS199524
AS199524
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AS270814
AS270814
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AS18106
AS18106
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 157.254.142.0/24 | AS21700 | — |
| 159.148.114.0/24 | 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
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 AS21700 represent?
AS21700 is an autonomous system number used to identify an independently operated network. The current page associates it with NEPTUNE-NETWORKS - Neptune Networks, LLC 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 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?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS21700, 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.