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Autonomous System

AS20900

IMS Networks SAS

Announced IPs
78,592
CIDR prefixes
14
ASN
AS20900

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Traffic level 1-5Gbps
Geographic scope Europe
Traffic ratio Balanced
Peering policy Open

Present at 2 internet exchanges: France-IX Paris, Equinix Paris: Equinix IX - PA Metro

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS20900 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
213.190.69.0/24 15,947 2026-07-25 11:33:43
137.129.0.0/16 13,199 2026-07-25 11:33:43
137.129.63.0/24 10,450 2026-07-25 11:33:43
137.129.234.0/23 10,259 2026-07-25 11:33:43
137.129.232.0/23 10,256 2026-07-25 11:33:43
137.129.15.0/24 10,185 2026-07-25 11:33:43
137.129.9.0/24 10,181 2026-07-25 11:33:43
137.129.43.0/24 10,164 2026-07-25 11:33:43
137.129.236.0/23 10,141 2026-07-25 11:33:43
176.111.246.0/24 8,068 2026-07-25 11:33:43
213.190.76.0/24 7,957 2026-07-25 11:33:43
91.231.175.0/24 7,614 2026-07-25 11:31:07
194.4.12.0/24 7,558 2026-07-25 11:33:43
31.217.232.0/21 7,229 2026-07-25 11:31:07
194.4.10.0/24 7,211 2026-07-25 11:32:41
185.182.252.0/24 7,205 2026-07-25 11:31:07
185.182.252.0/22 7,181 2026-07-25 11:31:07
91.214.114.0/23 7,174 2026-07-25 11:31:07
213.190.64.0/19 7,119 2026-07-25 11:31:07
213.190.64.0/24 7,117 2026-07-25 11:31:07
31.217.233.0/24 6,977 2026-07-25 11:31:07
213.190.65.0/24 6,896 2026-07-25 11:31:07
194.4.13.0/24 6,882 2026-07-25 11:31:07
194.4.7.0/24 6,872 2026-07-25 11:31:07
213.190.88.0/24 6,572 2026-07-25 11:28:24

Frequently Asked Questions

What is AS20900?

AS20900 is an Autonomous System Number assigned to IMS Networks SAS. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS20900 announce?

AS20900 announces 78.6K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in France.

Who operates AS20900?

AS20900 is operated by IMS Networks SAS. The organization is based in France. You can view all IP ranges and related ASNs on the organization page.

What country is AS20900 registered in?

AS20900 is registered in France. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-25 11:40:32 UTC
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