ResearchIRR · TC

AS52557:AS-UPSTREAMS as-set containing AS52557 upstream providers

An as-set registered in TC, maintained by MAINT-AS52557. It names 3 ASes and 0 sets directly; followed all the way down, it reaches 3 ASes through 0 nested sets.

What AS52557:AS-UPSTREAMS lists

3 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 AS52557:AS-UPSTREAMS would let in: 3 ASes.

Show the 3 ASes

What AS52557: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 AS52557:AS-UPSTREAMS (with bgpq4, say) would allow. 81 IPv4 and 9 IPv6. Every one is in the IRR API.

81 IPv4 prefixes
9 IPv6 prefixes

Each registry’s copy

TC3 membersas-set containing AS52557 upstream providers
Maintained byMAINT-AS52557
Last modified2026-06-03T00:21:40Z
MembersAS268689 AS4230 AS266167
mbrs-by-refN

Sets that include AS52557:AS-UPSTREAMS

Check AS52557:AS-UPSTREAMS live