Network topology

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

AS54539

Currently announcedSnapshot awaiting refresh

Calhoun ISD · CISD

Last observed10/16/2026, 00:00:00Open ASN profile →

AS54539 relationship topology

Showing 2 / 2

AS54539Calhoun ISD

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS401307Michigan Statewide Educational Network

Relationship: Upstream
Observed weight: 275
ASN registration country: United States
Latest RIS data: 10/16/2026, 00:00:00

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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	Visible prefixes	Collectors
AS401307Observed weight 275	Michigan Statewide Educational Network	Upstream	United States	8/25/2019, 00:00:00	10/16/2026, 00:00:00	2	1
AS19653Observed weight 263	CTSTELECOM - CTS Communications Corp	Upstream	United States	8/25/2019, 00:00:00	10/16/2026, 00:00:00	1	1

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