ResearchIRR · TC

AS61851:AS-UPSTREAMS as-set containing AS61851 upstream providers

An as-set registered in TC, maintained by MAINT-AS61851. It names 3 ASes and 0 sets directly; followed all the way down, it reaches 3 ASes through 0 nested sets.

Members

What AS61851:AS-UPSTREAMS lists

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

AS1031 PEER1-1031AS13786 SEABORNAS270735 AS270735
Expanded

Every AS it reaches

What a filter built from AS61851:AS-UPSTREAMS would let in: 3 ASes.

Show the 3 ASes
AS1031AS13786AS270735
Prefixes

What AS61851:AS-UPSTREAMS covers

Every route object in the IRR whose origin is one of the 3 ASes it reaches: the prefixes a filter built from AS61851:AS-UPSTREAMS (with bgpq4, say) would allow. 11 IPv4 and 18 IPv6. Every one is in the IRR API.

11 IPv4 prefixes
177.221.142.0/23177.221.142.0/24177.221.143.0/24207.135.208.0/21207.135.208.0/24207.135.210.0/24207.135.211.0/24207.135.212.0/24207.135.213.0/2445.177.100.0/2245.177.100.0/24
18 IPv6 prefixes
2605:4a40:100::/402605:4a40:300::/402605:4a40:400::/402605:4a40:500::/402605:4a40:900::/402605:4a40::/322605:4a40:d00::/402605:4a40:ff00::/472607:1640:1031:18::/642607:1640:1032::/482607:1640:1035::/482607:1640:1036::/482607:1640:1037::/482804:5d90::/322804:7094:3000::/362804:7094:8000::/332804:7094::/322804:7094::/33
Registries

Each registry’s copy

TC3 membersas-set containing AS61851 upstream providers
Maintained byMAINT-AS61851
Last modified2026-02-03T11:51:48Z
MembersAS1031 AS13786 AS270735
mbrs-by-refN
Tools

Check AS61851:AS-UPSTREAMS live

IRR API, with prefixes