Network topology

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

AS1580

Currently announcedSnapshot awaiting refresh

United States Department of Defense (DoD) · DNIC-ASBLK-01550-01601

Last observed9/29/2026, 08:08:32Open ASN profile →

AS1580 relationship topology

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AS1580United States Departmen…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS1554DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD)

Relationship: Upstream
Observed weight: 260
ASN registration country: United States
Latest RIS data: 11/1/2026, 00:00:00

Open AS1554 profile →

All adjacent autonomous systems

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1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS1554Observed weight 260	DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD)	Upstream	United States	8/19/2019, 00:00:00	11/1/2026, 00:00:00	1,310	0

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