AS20900 AS-IMSNETORKS IMS Networks SAS

AS-IMSNETORKS IMS Networks SAS · registered in France

IPv4 addresses80,64042 prefixes · 0.003% of announced IPv4

Rank in France#32largest network in FR by IPv4 space, of 1,375 · 0.11% of FR

Rank worldwide#2,190of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryFrance1,474 ASNs registered there

Open AS20900 in ASN lookup Look up an IP in this network (31.217.232.1) All networks in France

IPv4 prefixes

All 42 prefixes, in address order.

31.217.232.0/23
31.217.234.0/23
31.217.236.0/22
45.11.208.0/22
78.159.132.0/22
91.214.114.0/23
91.231.175.0/24
137.129.0.0/21
137.129.8.0/23
137.129.10.0/23
137.129.12.0/22
137.129.16.0/20
137.129.32.0/21
137.129.40.0/22
137.129.44.0/22
137.129.48.0/20
137.129.64.0/18
137.129.128.0/18
137.129.192.0/19
137.129.224.0/21
137.129.232.0/22
137.129.236.0/23
137.129.238.0/23
137.129.240.0/20
176.111.246.0/24
185.182.252.0/22
194.4.7.0/24
194.4.10.0/24
194.4.12.0/23
213.190.64.0/23
213.190.66.0/23
213.190.68.0/23
213.190.71.0/24
213.190.72.0/22
213.190.76.0/24
213.190.77.0/24
213.190.78.0/23
213.190.80.0/21
213.190.88.0/24
213.190.89.0/24
213.190.90.0/23
213.190.92.0/22

IPv6 prefixes

All 1 prefix.

2001:1b08::/32

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources