ResearchIRR · RADB

AS55:AS-DOWNSTREAM Networks routed via the University of Pennsylvania

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

Members

What AS55:AS-DOWNSTREAM lists

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

AS69 UPENN-NETWORK-LABAS46274 UPHSAS400653 UPENN-WHARTON-SF
Expanded

Every AS it reaches

What a filter built from AS55:AS-DOWNSTREAM would let in: 3 ASes.

Show the 3 ASes
AS69AS46274AS400653
Prefixes

What AS55:AS-DOWNSTREAM covers

Every route object in the IRR whose origin is one of the 3 ASes it reaches: the prefixes a filter built from AS55:AS-DOWNSTREAM (with bgpq4, say) would allow. 7 IPv4 and 2 IPv6. Every one is in the IRR API.

7 IPv4 prefixes
128.91.139.0/24160.72.210.0/24165.123.192.0/23165.123.50.0/24170.212.0.0/24170.212.48.0/24192.5.44.0/24
2 IPv6 prefixes
2607:f470:4::/482607:f470:5000::/48
Registries

Each registry’s copy

RADB3 membersNetworks routed via the University of Pennsylvania
Maintained byMAINT-UPENN
Last modified2025-01-28T17:09:58Z
MembersAS46274 AS69 AS400653
mbrs-by-refN
Used by

Sets that include AS55:AS-DOWNSTREAM

AS55:AS-ALLAS55:AS-CONE
Tools

Check AS55:AS-DOWNSTREAM live

IRR API, with prefixes