Network topology

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

AS31991

Currently announcedSnapshot awaiting refresh

Platte River Power Authority · PRPA

Last observed10/2/2026, 10:49:11Open ASN profile →

AS31991 relationship topology

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AS31991Platte River Power Auth…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12145COLORADOSTATEUNIV - Colorado State University

Relationship: Upstream
Observed weight: 251
ASN registration country: United States
Latest RIS data: 10/2/2026, 00:00:00

Open AS12145 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
AS12145Observed weight 251	COLORADOSTATEUNIV - Colorado State University	Upstream	United States	8/21/2019, 00:00:00	10/2/2026, 00:00:00	331	0

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