Country
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ASN LANDING PAGE
AS399855
KEYSTONEREN - Keystone REN
Last updated · Apr 4, 2026
Total prefixes
2
IPv4 prefixes
1
IPv6 prefixes
1
ASN summary
How to read the scale of AS399855
KEYSTONEREN - Keystone REN currently shows 2 prefixes and 31 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 AS399855?
KEYSTONEREN - Keystone REN 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 AS399855 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
AS399855 ASN lookupAS399855 BGPAS399855 peersAS399855 prefixesAS399855 upstreamsKEYSTONEREN - Keystone REN ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
AS398663
AS398663
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AS7150
AS7150
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AS22644
AS22644
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AS397913
AS397913
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AS398643
AS398643
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AS398655
AS398655
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AS398813
AS398813
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AS398537
AS398537
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AS398774
AS398774
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AS62989
AS62989
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AS36269
AS36269
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AS394170
AS394170
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AS394962
AS394962
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AS398471
AS398471
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AS398573
AS398573
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AS4130
AS4130
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AS9
AS9
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AS16794
AS16794
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AS3999
AS3999
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AS11395
AS11395
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AS6522
AS6522
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AS23041
AS23041
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AS398564
AS398564
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AS398850
AS398850
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AS19395
AS19395
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AS22192
AS22192
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AS22198
AS22198
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AS32744
AS32744
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Peers
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 164.153.140.0/24 | AS399855 | — |
| 2602:f9a4::/40 | AS399855 | — |
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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 AS399855 represent?
AS399855 is an autonomous system number used to identify an independently operated network. The current page associates it with KEYSTONEREN - Keystone REN 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 AS399855 page?
They help explain the scale, interconnection depth, and route structure of AS399855. 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 AS399855?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS399855, 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.