Network topology

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

AS273301

Currently announcedSnapshot awaiting refresh

AS273301 - SIZATEK SPECTRUM

Last observed11/9/2026, 05:10:40Open ASN profile →

AS273301 relationship topology

Showing 1 / 1

AS273301SIZATEK SPECTRUM

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS28431AS28431 - RAUL DUARTE URITA

Relationship: Upstream
Observed weight: 419
ASN registration country: Mexico
Latest RIS data: 11/8/2026, 00:00:00

Open AS28431 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
AS28431Observed weight 419	AS28431 - RAUL DUARTE URITA	Upstream	Mexico	10/2/2019, 00:00:00	11/8/2026, 00:00:00	324	354

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