ResearchIRR · TC

AS61851:AS-ANNOUNCEMENTS as-set containing AS61851 and its downstream…

An as-set registered in TC, maintained by MAINT-AS61851. It names 1 AS and 1 set directly; followed all the way down, it reaches 8 ASes through 1 nested sets.

Members

What AS61851:AS-ANNOUNCEMENTS lists

1 AS and 1 set, written in the object across every registry that holds it. Sets open their own page.

AS61851:AS-CUSTOMERSAS61851 AS61851
Expanded

Every AS it reaches

What a filter built from AS61851:AS-ANNOUNCEMENTS would let in: 8 ASes.

Show the 8 ASes
AS52801AS61753AS61851AS268813AS270506AS271504AS271603AS272438
Prefixes

What AS61851:AS-ANNOUNCEMENTS covers

Every route object in the IRR whose origin is one of the 8 ASes it reaches: the prefixes a filter built from AS61851:AS-ANNOUNCEMENTS (with bgpq4, say) would allow. 92 IPv4 and 41 IPv6. Every one is in the IRR API.

92 IPv4 prefixes
131.100.16.0/22131.100.16.0/23131.100.16.0/24131.100.17.0/24131.100.18.0/23131.100.18.0/24131.100.19.0/24168.181.232.0/22168.181.232.0/23168.181.232.0/24168.181.233.0/24168.181.234.0/23168.181.234.0/24168.181.235.0/24177.52.88.0/21177.52.88.0/22177.52.88.0/23177.52.88.0/24177.52.89.0/24177.52.90.0/23177.52.90.0/24177.52.91.0/24177.52.92.0/22177.52.92.0/23177.52.92.0/24177.52.93.0/24177.52.94.0/23177.52.94.0/24177.52.95.0/24177.75.224.0/20177.75.224.0/21177.75.224.0/22177.75.224.0/23177.75.224.0/24177.75.225.0/24177.75.226.0/23177.75.226.0/24177.75.227.0/24177.75.228.0/22177.75.228.0/23177.75.228.0/24177.75.229.0/24177.75.230.0/23177.75.230.0/24177.75.231.0/24177.75.232.0/21177.75.232.0/22177.75.232.0/23177.75.232.0/24177.75.233.0/24177.75.234.0/23177.75.234.0/24177.75.235.0/24177.75.236.0/22177.75.236.0/23177.75.236.0/24177.75.237.0/24177.75.238.0/23177.75.238.0/24177.75.239.0/24186.0.148.0/22186.0.148.0/23186.0.148.0/24186.0.150.0/23186.0.151.0/24190.3.164.0/22190.3.164.0/24190.3.165.0/24190.3.166.0/24190.3.167.0/24200.53.64.0/22200.53.64.0/23200.53.64.0/24200.53.65.0/24200.53.66.0/23200.53.66.0/24200.53.67.0/24201.149.124.0/22201.149.124.0/23201.149.124.0/24201.149.125.0/24201.149.126.0/23201.149.126.0/24201.149.127.0/2445.173.136.0/2245.173.136.0/2345.173.136.0/2445.173.137.0/2445.173.138.0/2345.173.138.0/2445.173.139.0/2468.181.232.0/22
41 IPv6 prefixes
2804:1a4c:4000::/342804:1a4c:6000::/352804:1a4c:8000::/332804:1a4c:8000::/342804:1a4c::/322804:1a4c::/332804:1a4c::/342804:1a4c:c000::/342804:1a4c:e00::/482804:1bdc:8000::/332804:1bdc::/322804:2e18::/322804:5b04:8000::/332804:5b04::/322804:5b04::/332804:6d00:4000::/342804:6d00:8000::/332804:6d00:8000::/342804:6d00::/322804:6d00::/332804:6d00::/342804:6d00:c000::/342804:7c90:4000::/342804:7c90:8000::/332804:7c90:8000::/342804:7c90::/322804:7c90::/332804:7c90::/342804:7c90:c000::/342804:7e1c:8000::/332804:7e1c::/322804:8130:8000::/332804:8130::/322804:8130::/332804:ba0:4000::/342804:ba0:8000::/332804:ba0:8000::/342804:ba0::/322804:ba0::/332804:ba0::/342804:ba0:c000::/34
Registries

Each registry’s copy

TC2 membersas-set containing AS61851 and its downstream customers
Maintained byMAINT-AS61851
Last modified2026-02-03T11:51:48Z
MembersAS61851 AS61851:AS-CUSTOMERS
mbrs-by-refN
Tools

Check AS61851:AS-ANNOUNCEMENTS live

IRR API, with prefixes