Network topology

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

AS21904

Currently announcedSnapshot awaiting refresh

PowerOne · POWER1COM

Last observed10/1/2026, 08:35:23Open ASN profile →

AS21904 relationship topology

Showing 2 / 2

AS21904PowerOne

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS209CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC

Relationship: Upstream
Observed weight: 258
ASN registration country: United States
Latest RIS data: 10/1/2026, 00:00:00

Open AS209 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
AS209Observed weight 258	CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	989	0
AS3356Observed weight 254	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	1,655	0

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