Network topology

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

AS397140

Currently announcedSnapshot awaiting refresh

Amarillo National Bank · ANB-NET

Last observed11/1/2026, 01:47:55Open ASN profile →

AS397140 relationship topology

Showing 3 / 3

AS397140Amarillo National Bank

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS19108SUDDENLINK-COMMUNICATIONS - Optimum

Relationship: Upstream
Observed weight: 263
ASN registration country: United States
Latest RIS data: 10/31/2026, 00:00:00

Open AS19108 profile →

All adjacent autonomous systems

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

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS19108Observed weight 263	SUDDENLINK-COMMUNICATIONS - Optimum	Upstream	United States	9/19/2019, 00:00:00	10/31/2026, 00:00:00	333
AS13693Observed weight 187	Vexus Fiber	Upstream	United States	9/19/2019, 00:00:00	10/31/2026, 00:00:00	233
AS54650Observed weight 63	PWZCOM-AMA - Pathwayz Communications, Inc.	Upstream	United States	9/19/2019, 00:00:00	10/31/2026, 00:00:00	99

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