ResearchIRR · RIPE

AS51155:AS-CITYLINK-RETN N

An as-set registered in RIPE, maintained by AS51155-MNT. It names 6 ASes and 0 sets directly; followed all the way down, it reaches 6 ASes through 0 nested sets.

Members

What AS51155:AS-CITYLINK-RETN lists

6 ASes and 0 sets, written in the object across every registry that holds it. Sets open their own page.

AS41865 BIALLNET-ASAS51155 TBTELECOMAS56408 Airport_Gdansk-ASAS206651 TelemedianAS211254 OPTO-ASNAS214762 MATHOST
Expanded

Every AS it reaches

What a filter built from AS51155:AS-CITYLINK-RETN would let in: 6 ASes.

Show the 6 ASes
AS41865AS51155AS56408AS206651AS211254AS214762
Prefixes

What AS51155:AS-CITYLINK-RETN covers

Every route object in the IRR whose origin is one of the 6 ASes it reaches: the prefixes a filter built from AS51155:AS-CITYLINK-RETN (with bgpq4, say) would allow. 19 IPv4 and 12 IPv6. Every one is in the IRR API.

19 IPv4 prefixes
145.79.141.0/24178.19.176.0/20185.179.132.0/22193.34.0.0/22193.34.0.0/23193.34.2.0/2344.30.200.0/2446.227.36.0/2246.227.36.0/2346.227.38.0/2378.159.80.0/2487.76.134.0/2489.144.32.0/2489.144.44.0/2491.223.130.0/2494.158.128.0/2094.158.128.0/2194.158.131.0/2494.158.136.0/21
12 IPv6 prefixes
2a02:26e8::/322a05:dfc1:1410::/442a06:1283:8904::/482a06:1283:890c::/482a07:54c1:c000::/442a0f:85c1:80b::/482a0f:b240:5c00::/402a10:f781:10:922a::/642a13:9500:53::/482a13:c8c4:1000::/362a13:c8c4:ff00::/402a14:7580:ff9c::/48
Registries

Each registry’s copy

RIPE6 membersN
Maintained byAS51155-MNT
Last modified2026-02-18T13:29:36Z
MembersAS41865 AS51155 AS206651 AS211254 AS56408 AS214762
mbrs-by-refN
Used by

Sets that include AS51155:AS-CITYLINK-RETN

AS-RETNAS-RETN6
Tools

Check AS51155:AS-CITYLINK-RETN live

IRR API, with prefixes