Network topology

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

AS51512

Currently announcedSnapshot awaiting refresh

DIGITALSIGN - CERTIFICADORA DIGITAL S.A. · digitalsign

Last observed10/4/2026, 17:55:50Open ASN profile →

AS51512 relationship topology

Showing 2 / 2

AS51512CERTIFICADORA DIGITAL S…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS15525MEO-EMPRESAS MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.

Relationship: Upstream
Observed weight: 199
ASN registration country: Portugal
Latest RIS data: 10/4/2026, 00:00:00

Open AS15525 profile →

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	IPv4	IPv6
AS15525Observed weight 199	MEO-EMPRESAS MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	Upstream	Portugal	8/25/2019, 00:00:00	10/4/2026, 00:00:00	268	0
AS2860Observed weight 92	NOS_COMUNICACOES NOS COMUNICACOES, S.A.	Upstream	Portugal	8/25/2019, 00:00:00	10/4/2026, 00:00:00	114	0

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