Network topology

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

AS3423

Currently announcedSnapshot awaiting refresh

ATTIS-ASN3423 - AT&T Enterprises, LLC · ATTIS-ASN3423

Last observed9/29/2026, 10:33:27Open ASN profile →

AS3423 relationship topology

Showing 2 / 2

AS3423AT&T Enterprises, LLC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7018ATT-INTERNET4 - AT&T Enterprises, LLC

Relationship: Upstream
Observed weight: 706
ASN registration country: United States
Latest RIS data: 10/29/2026, 00:00:00

Open AS7018 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
AS7018Observed weight 706	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/19/2019, 00:00:00	10/29/2026, 00:00:00	5,581	990
AS13979Observed weight 343	ATT-IPFR - AT&T Enterprises, LLC	Downstream	United States	8/19/2019, 00:00:00	10/29/2026, 00:00:00	1,962	330

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