Network topology

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

AS19841

Currently announcedSnapshot awaiting refresh

ISNS · ISNS1

Last observed10/19/2026, 19:30:28Open ASN profile →

AS19841 relationship topology

Showing 2 / 2

AS19841ISNS

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS40237UNITED-TELEPHONE - United Telephone Company

Relationship: Upstream
Observed weight: 260
ASN registration country: United States
Latest RIS data: 11/8/2026, 00:00:00

Open AS40237 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
AS40237Observed weight 260	UNITED-TELEPHONE - United Telephone Company	Upstream	United States	8/21/2019, 00:00:00	11/8/2026, 00:00:00	327	0
AS22909Observed weight 20	COMCAST-22909 - Comcast Cable Communications, LLC	Upstream	United States	8/21/2019, 00:00:00	9/30/2026, 00:00:00	22	0

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