AS-20900 AS-SET IMSNETWORKS
An as-set registered in RIPE, maintained by MNT-FR-IMSNETWORKS-1. It names 13 ASes and 0 sets directly; followed all the way down, it reaches 13 ASes through 0 nested sets.
Members
What AS-20900 lists
13 ASes and 0 sets, written in the object across every registry that holds it. Sets open their own page.
Prefixes
What AS-20900 covers
Every route object in the IRR whose origin is one of the 13 ASes it reaches: the prefixes a filter built from AS-20900 (with bgpq4, say) would allow. 73 IPv4 and 4 IPv6. Every one is in the IRR API.
73 IPv4 prefixes
137.129.0.0/16171.22.158.0/24176.111.246.0/24185.106.160.0/22185.168.188.0/23185.168.188.0/24185.168.189.0/24185.168.190.0/23185.168.190.0/24185.168.191.0/24185.182.252.0/22193.239.12.0/22193.239.15.0/24193.57.132.0/22193.57.218.0/24193.57.219.0/24193.57.220.0/23193.57.220.0/24193.57.221.0/24193.57.241.0/24193.57.244.0/24193.57.245.0/24193.57.247.0/24193.57.84.0/22194.116.176.0/23194.116.176.0/24194.116.177.0/24194.4.10.0/24194.4.11.0/24194.4.12.0/24194.4.13.0/24194.4.7.0/24195.138.204.0/24195.242.221.0/24195.242.222.0/24195.78.82.0/24212.155.212.0/24213.190.12.0/22213.190.12.0/24213.190.13.0/24213.190.14.0/24213.190.15.0/24213.190.64.0/19213.190.64.0/24213.190.65.0/24213.190.76.0/24213.190.91.0/2431.217.232.0/2131.217.233.0/2445.11.208.0/2245.11.208.0/2446.31.160.0/2146.31.160.0/2446.31.161.0/2446.31.162.0/2446.31.167.0/2477.91.240.0/2178.159.132.0/2278.159.148.0/2485.119.168.0/2485.119.169.0/2485.119.170.0/2485.119.171.0/2485.119.172.0/2291.214.113.0/2491.214.114.0/2491.214.115.0/2491.231.174.0/2491.231.175.0/2491.238.150.0/2391.240.78.0/2391.240.78.0/2491.240.79.0/24
4 IPv6 prefixes
Registries
Each registry’s copy
RIPE13 membersAS-SET IMSNETWORKS
| Maintained by | MNT-FR-IMSNETWORKS-1 |
| Last modified | 2026-09-10T08:09:49Z |
| Members | AS20900 AS12645 AS47233 AS209483 AS50758 AS204212 AS204516 AS206865 AS204835 AS43342 AS49441 AS198340 AS204509 |
| mbrs-by-ref | N |