Network topology

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

AS39738

Currently announcedSnapshot awaiting refresh

TCLM-AS Telecom Castilla La Mancha SA · TCLM-AS

Last observed10/3/2026, 07:28:53Open ASN profile →

AS39738 relationship topology

Showing 4 / 4

AS39738TCLM-AS Telecom Castill…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS174COGENT-174 - Cogent Communications, LLC

Relationship: Upstream
Observed weight: 325
ASN registration country: United States
Latest RIS data: 10/2/2026, 16:00:00

Open AS174 profile →

All adjacent autonomous systems

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4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS174Observed weight 325	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/23/2019, 00:00:00	10/2/2026, 16:00:00	390
AS8903Observed weight 191	LYNTIA NETWORKS S.A.	Upstream	Spain	8/23/2019, 00:00:00	10/2/2026, 16:00:00	271
AS12541Observed weight 4	LYNTIA_BB_AS LYNTIA NETWORKS S.A.	Upstream	Spain	8/23/2019, 00:00:00	10/2/2026, 16:00:00	4
AS202766Observed weight 2	as-former-codinet LYNTIA NETWORKS S.A.	Upstream	Spain	8/23/2019, 00:00:00	10/2/2026, 16:00:00	4

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