ResearchIRR · ARIN

AS3685:AS-DOWNSTREAMS University at Buffalo 305 Computing Center…

An as-set registered in ARIN, maintained by MNT-SUNYAB-2-Z. It names 4 ASes and 0 sets directly; followed all the way down, it reaches 4 ASes through 0 nested sets.

Members

What AS3685:AS-DOWNSTREAMS lists

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

AS17311 ECMC-BGPAS19933 BUFFALOSTATEAS33177 AS33177AS401675 EAI-ASN
Expanded

Every AS it reaches

What a filter built from AS3685:AS-DOWNSTREAMS would let in: 4 ASes.

Show the 4 ASes
AS17311AS19933AS33177AS401675
Prefixes

What AS3685:AS-DOWNSTREAMS covers

Every route object in the IRR whose origin is one of the 4 ASes it reaches: the prefixes a filter built from AS3685:AS-DOWNSTREAMS (with bgpq4, say) would allow. 13 IPv4 and 1 IPv6. Every one is in the IRR API.

13 IPv4 prefixes
136.183.0.0/16136.183.224.0/19136.223.17.0/24161.136.0.0/16198.203.145.0/24198.212.218.0/24198.51.72.0/24199.33.168.0/22199.33.172.0/23204.110.0.0/21204.152.24.0/23204.69.179.0/2470.35.154.0/24
1 IPv6 prefix
2602:f67c::/40
Registries

Each registry’s copy

ARIN4 membersUniversity at Buffalo 305 Computing Center Buffalo NY 14260 United States
Maintained byMNT-SUNYAB-2-Z
Last modified2026-07-07T11:58:23Z
MembersAS401675 AS19933 AS17311 AS33177
mbrs-by-refN
Tools

Check AS3685:AS-DOWNSTREAMS live

IRR API, with prefixes