Network topology

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

AS15937

Currently announcedSnapshot awaiting refresh

ADIF

Last observed9/30/2026, 16:12:41Open ASN profile →

AS15937 relationship topology

Showing 2 / 2

AS15937ADIF

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12479UNI2-AS Orange Espagne SA

Relationship: Upstream
Observed weight: 301
ASN registration country: Spain
Latest RIS data: 10/30/2026, 00:00:00

Open AS12479 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
AS12479Observed weight 301	UNI2-AS Orange Espagne SA	Upstream	Spain	8/19/2019, 00:00:00	10/30/2026, 00:00:00	599	0
AS12357Observed weight 51	COMUNITEL VODAFONE ESPANA S.A.U.	Upstream	Spain	8/19/2019, 00:00:00	10/30/2026, 00:00:00	70	0

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