ResearchIRR · TC

AS28181:AS-ANNOUNCEMENTS as-set containing AS28181 and its downstream…

An as-set registered in TC, maintained by MAINT-AS28181. It names 6 ASes and 0 sets directly; followed all the way down, it reaches 6 ASes through 0 nested sets.

What AS28181:AS-ANNOUNCEMENTS lists

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

Every AS it reaches

What a filter built from AS28181:AS-ANNOUNCEMENTS would let in: 6 ASes.

Show the 6 ASes

What AS28181:AS-ANNOUNCEMENTS covers

Every route object in the IRR whose origin is one of the 6 ASes it reaches: the prefixes a filter built from AS28181:AS-ANNOUNCEMENTS (with bgpq4, say) would allow. 105 IPv4 and 10 IPv6. Every one is in the IRR API.

105 IPv4 prefixes
131.72.128.0/22131.72.129.0/24131.72.130.0/24138.204.220.0/22138.204.220.0/23138.204.220.0/24138.204.222.0/23138.204.222.0/24138.204.223.0/24179.97.16.0/21179.97.16.0/22179.97.16.0/23179.97.16.0/24179.97.17.0/24179.97.18.0/23179.97.18.0/24179.97.19.0/24179.97.20.0/22179.97.20.0/23179.97.20.0/24179.97.21.0/24179.97.22.0/23179.97.22.0/24179.97.23.0/24186.209.100.0/22186.209.100.0/23186.209.100.0/24186.209.101.0/24186.209.102.0/23186.209.102.0/24186.209.103.0/24186.209.104.0/21186.209.104.0/23186.209.104.0/24186.209.105.0/24186.209.106.0/23186.209.108.0/22186.209.108.0/23186.209.108.0/24186.209.109.0/24186.209.110.0/23186.209.110.0/24186.209.111.0/24186.209.96.0/20186.209.96.0/21186.209.96.0/23186.209.97.0/24186.209.98.0/23186.209.98.0/24186.209.99.0/24186.235.224.0/20186.235.224.0/21186.235.224.0/23186.235.226.0/23186.235.228.0/24186.235.229.0/24186.235.230.0/23186.235.232.0/21186.235.232.0/23186.235.233.0/24186.235.234.0/23186.235.235.0/24186.235.236.0/23186.235.236.0/24186.235.237.0/24186.235.238.0/24186.235.239.0/24187.61.100.0/22187.61.100.0/23187.61.100.0/24187.61.101.0/24187.61.102.0/23187.61.102.0/24187.61.103.0/24187.61.104.0/21187.61.104.0/22187.61.104.0/23187.61.104.0/24187.61.105.0/24187.61.107.0/24187.61.108.0/22187.61.108.0/24187.61.109.0/24187.61.110.0/23187.61.110.0/24187.61.111.0/24187.61.96.0/20187.61.96.0/21187.61.96.0/22187.61.97.0/24187.61.98.0/23187.61.98.0/24187.61.99.0/24201.182.116.0/22201.182.116.0/23201.182.118.0/24201.182.119.0/2438.196.177.0/2445.188.168.0/2245.188.168.0/2345.188.168.0/2445.188.169.0/2445.188.170.0/2345.188.170.0/2445.188.171.0/24
10 IPv6 prefixes

Each registry’s copy

TC6 membersas-set containing AS28181 and its downstream customers
Maintained byMAINT-AS28181
Last modified2025-05-19T16:33:42Z
MembersAS28181 AS53153 AS53205 AS269537 AS61744 AS267512
mbrs-by-refN

Check AS28181:AS-ANNOUNCEMENTS live