Network topology

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

AS4015

Currently announcedSnapshot awaiting refresh

CenturyLink Communications, LLC · CENTURYLINK-LEGACY-QWEST-SPA-OMAHA

Last observed9/29/2026, 11:19:26Open ASN profile →

AS4015 relationship topology

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AS4015CenturyLink Communicati…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

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

Relationship: Upstream
Observed weight: 346
ASN registration country: United States
Latest RIS data: 10/20/2026, 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.

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS209Observed weight 346	CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	10/20/2026, 00:00:00	1,333	333

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