Network topology

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

AS5638

Currently announcedSnapshot awaiting refresh

Brewer Science · BREWER-SCIENCE

Last observed9/29/2026, 13:27:51Open ASN profile →

AS5638 relationship topology

Showing 2 / 2

AS5638Brewer Science

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3356LEVEL3 - Level 3 Parent, LLC

Relationship: Upstream
Observed weight: 211
ASN registration country: United States
Latest RIS data: 10/24/2026, 08:00:00

Open AS3356 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
AS3356Observed weight 211	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/19/2019, 00:00:00	10/24/2026, 08:00:00	253	0
AS11976Observed weight 14	FIDN - Fidelity Communication International Inc.	Upstream	United States	8/19/2019, 00:00:00	10/24/2026, 08:00:00	23	0

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