asn.dev

Autonomous system

AS51512 digitalsign DIGITALSIGN - CERTIFICADORA DIGITAL S.A.

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly PT
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

DigitalSign

Portugal · AI-generated

business security digital-signature

The AS handle DIGITALSIGN is held by DigitalSign - Certificadora Digital S.A.

What it's used for

  • The address space carries corporate infrastructure for a digital certificate authority, as indicated by the netname PT-DIGITALSIGN-20200106 and registrant DIGITALSIGN - CERTIFICADORA DIGITAL S.A.
  • The network announces 256 IPv4 addresses across 1 prefix with 2 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access provider.
  • Traffic from this AS consists of web and API endpoints for digital identity services, including remote signature solutions and blockchain-based digital wallets.

Notable

  • The RDAP registrant DIGITALSIGN - CERTIFICADORA DIGITAL S.A. agrees with the AS holder and the netname PT-DIGITALSIGN-20200106.
  • The address inventory consists of a single /24 block, 176.119.193.0/24, which is finely subdivided for internal use.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS15525SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.42
AS2860NOS COMUNICACOES, S.A.24

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-01, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
PTPortugal1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51512
Registry name
digitalsign
Registrant
mnt-pt-digitalsign-1
Abuse contact
dsi@digitalsign.pt
Registered
2022-11-03
Last changed
2022-11-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS51512
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS51512

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 447 networks and 1,843 prefixes, as published 2026-11-02. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check