Network topology

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

AS13833

Currently announcedSnapshot awaiting refresh

Nos Communications · ASN-NOS

Last observed9/30/2026, 10:09:54Open ASN profile →

AS13833 relationship topology

Showing 2 / 2

AS13833Nos Communications

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7385ABUL-14-7385 - Allstream Business US, LLC

Relationship: Upstream
Observed weight: 138
ASN registration country: United States
Latest RIS data: 9/30/2026, 00:00:00

Open AS7385 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS7385Observed weight 138	ABUL-14-7385 - Allstream Business US, LLC	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 00:00:00	376	0
AS3549Observed weight 123	LVLT-3549 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 00:00:00	296	0

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