Country
—
ASN LANDING PAGE
AS20900
AS-IMSNETORKS - IMS Networks SAS
Last updated · Apr 4, 2026
Total prefixes
26
IPv4 prefixes
25
IPv6 prefixes
1
ASN summary
How to read the scale of AS20900
AS-IMSNETORKS - IMS Networks SAS currently shows 26 prefixes and 47 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 AS20900?
AS-IMSNETORKS - IMS Networks SAS 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 AS20900 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
AS20900 ASN lookupAS20900 BGPAS20900 peersAS20900 prefixesAS20900 upstreamsAS-IMSNETORKS - IMS Networks SAS ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS174
AS174
—
AS3356
AS3356
—
AS6762
AS6762
—
AS6939
AS6939
—
AS25091
AS25091
—
AS34019
AS34019
—
AS41327
AS41327
—
AS137409
AS137409
—
AS34177
AS34177
—
AS35280
AS35280
—
AS6696
AS6696
—
AS29075
AS29075
—
AS14840
AS14840
—
AS1828
AS1828
—
AS4455
AS4455
—
AS9009
AS9009
—
AS15547
AS15547
—
AS24482
AS24482
—
AS29049
AS29049
—
AS35600
AS35600
—
AS36236
AS36236
—
AS44097
AS44097
—
AS50628
AS50628
—
AS198150
AS198150
—
AS212483
AS212483
—
AS16347
AS16347
—
AS49544
AS49544
—
AS199524
AS199524
—
AS215596
AS215596
—
AS33891
AS33891
—
AS20764
AS20764
—
AS6057
AS6057
—
AS8298
AS8298
—
AS9304
AS9304
—
AS12779
AS12779
—
AS20562
AS20562
—
AS22356
AS22356
—
AS34927
AS34927
—
AS39351
AS39351
—
AS2027
AS2027
—
Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 137.129.0.0/16 | AS20900 | — |
| 137.129.15.0/24 | AS20900 | — |
| 137.129.232.0/23 | AS20900 | — |
| 137.129.234.0/23 | AS20900 | — |
| 137.129.236.0/23 | AS20900 | — |
| 137.129.43.0/24 | AS20900 | — |
| 137.129.63.0/24 | AS20900 | — |
| 137.129.9.0/24 | AS20900 | — |
| 176.111.246.0/24 | AS20900 | — |
| 185.182.252.0/22 | AS20900 | — |
| 185.182.252.0/24 | AS20900 | — |
| 194.4.10.0/24 | AS20900 | — |
| 194.4.12.0/24 | AS20900 | — |
| 194.4.13.0/24 | AS20900 | — |
| 194.4.7.0/24 | AS20900 | — |
| 2001:1b08::/32 | AS20900 | — |
| 213.190.64.0/19 | AS20900 | — |
| 213.190.64.0/24 | AS20900 | — |
| 213.190.65.0/24 | AS20900 | — |
| 213.190.69.0/24 | AS20900 | — |
| 213.190.76.0/24 | AS20900 | — |
| 213.190.88.0/24 | AS20900 | — |
| 31.217.232.0/21 | AS20900 | — |
| 31.217.233.0/24 | AS20900 | — |
| 91.214.114.0/23 | AS20900 | — |
| 91.231.175.0/24 | AS20900 | — |
Related ASN pages
AS15169 · Google
A strong reference ASN for Google DNS, Google Cloud, and global network footprint analysis.
AS13335 · Cloudflare
Useful for analyzing CDN, Anycast, WAF, and large-scale edge network behavior.
AS8075 · Microsoft
Helpful when comparing Azure, enterprise backbone, and large-cloud routing patterns.
AS16509 · Amazon
A useful ASN landing page for understanding AWS and large cloud-network ownership.
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 AS20900 represent?
AS20900 is an autonomous system number used to identify an independently operated network. The current page associates it with AS-IMSNETORKS - IMS Networks SAS 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 AS20900 page?
They help explain the scale, interconnection depth, and route structure of AS20900. 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 AS20900?
The best next step is usually to return to a concrete IP landing page to see how a specific address maps into AS20900, 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.