AS397952:AS-DOWNSTREAM Downstream BGP customers
An as-set registered in ARIN, maintained by MNT-ITML-2. It names 1 AS and 0 sets directly; followed all the way down, it reaches 1 ASes through 0 nested sets.
Members
What AS397952:AS-DOWNSTREAM lists
1 AS and 0 sets, written in the object across every registry that holds it. Sets open their own page.
Expanded
Every AS it reaches
What a filter built from AS397952:AS-DOWNSTREAM would let in: 1 ASes.
Show the 1 ASes
Prefixes
What AS397952:AS-DOWNSTREAM covers
Every route object in the IRR whose origin is one of the 1 ASes it reaches: the prefixes a filter built from AS397952:AS-DOWNSTREAM (with bgpq4, say) would allow. 1 IPv4 and 0 IPv6. Every one is in the IRR API.
1 IPv4 prefix
Registries
Each registry’s copy
ARIN1 membersDownstream BGP customers
| Maintained by | MNT-ITML-2 |
| Last modified | 2026-09-14T18:25:05Z |
| Members | AS54979 |
| mbrs-by-ref | N |