Network topology

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

AS13990

Currently announcedSnapshot awaiting refresh

COUNTYOFORANGE - County of Orange · COUNTYOFORANGE

Last observed9/30/2026, 10:33:07Open ASN profile →

AS13990 relationship topology

Showing 4 / 4

AS13990County of Orange

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS7018ATT-INTERNET4 - AT&T Enterprises, LLC

Relationship: Upstream
Observed weight: 558
ASN registration country: United States
Latest RIS data: 11/10/2026, 00:00:00

Open AS7018 profile →

All adjacent autonomous systems

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

4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS7018Observed weight 558	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/19/2019, 00:00:00	11/10/2026, 00:00:00	5,669
AS46887Observed weight 504	CROWNCASTLE-AS46887 - Crown Castle Fiber LLC	Upstream	United States	8/19/2019, 00:00:00	11/10/2026, 00:00:00	990
AS3356Observed weight 502	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	11/10/2026, 00:00:00	3,162
AS3549Observed weight 250	LVLT-3549 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	11/10/2026, 00:00:00	328

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