Network topology

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

AS153

Currently announcedSnapshot awaiting refresh

Headquarters, USAISC · CTNOSC-ASN-153

Last observed11/1/2026, 00:28:57Open ASN profile →

AS153 relationship topology

Showing 2 / 2

AS153Headquarters, USAISC

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1540Headquarters, USAISC

Relationship: Upstream
Observed weight: 502
ASN registration country: United States
Latest RIS data: 10/31/2026, 00:00:00

Open AS1540 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1540Observed weight 502	Headquarters, USAISC	Upstream	United States	9/19/2019, 00:00:00	10/31/2026, 00:00:00	655	0
AS367Observed weight 1	United States Department of Defense (DoD)	Upstream	United States	8/19/2019, 00:00:00	10/31/2026, 00:00:00	1	0

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