asn.dev

Autonomous system

AS29661 ANCERT-AS 08174 Sant Cugat del Valles

Unclassified RIPE

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly ES
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Agencia Notarial de Certificacion

Spain · AI-generated

business certification spain

The AS handle ANCERT-AS is held by Agencia Notarial de Certificacion S.L.

What it's used for

  • The address space is registered under netnames ES-ANCERT-20180327 and ANCERT-ES-NET, both attributed to the registrant Agencia Notarial de Certificacion S.L.
  • The AS announces 1280 IPv4 addresses across 2 prefixes with 2 observed neighbours, indicating a small-scale internal corporate estate rather than a transit or access network.

Notable

  • The registrants for both announced prefixes match the AS holder, confirming consistent ownership of the address inventory.
  • The address inventory consists of one /22 block and one /24 block, all located in Spain.

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
AS3352TELEFONICA DE ESPANA S.A.U.294
AS12479Orange Espagne SA173

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 2 prefixes · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
ESSpain2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS29661
Registry name
ANCERT-AS
Registrant
ANCERT-MNT
Abuse contact
abuse@notariado.org
Registered
2003-11-05
Last changed
2021-05-13
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 8 with no ROA
ROAs
0 authorising AS29661
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
2 naming AS29661

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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