Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS397652

Currently announcedSnapshot awaiting refresh

SMSC - SMSC · SMSC

Last observed10/24/2026, 19:46:55Open ASN profile →

AS397652 relationship topology

Showing 2 / 2

AS397652SMSC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12042ENVENTIS - Fidium

Relationship: Upstream
Observed weight: 145
ASN registration country: United States
Latest RIS data: 10/17/2026, 00:00:00

Open AS12042 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS12042Observed weight 145	ENVENTIS - Fidium	Upstream	United States	9/3/2019, 00:00:00	10/17/2026, 00:00:00	211	0
AS23465Observed weight 131	Nuvera	Upstream	United States	9/3/2019, 00:00:00	10/17/2026, 00:00:00	173	0

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context