asn.dev

Autonomous system

AS21193 XARXA-AS

Unclassified RIPE

IPv4 addresses 24.58K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly ES
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

CTTI Xarxa

Spain · AI-generated

government education research network

XARXA-AS is operated by Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya (CTTI).

What it's used for

  • The address space carries government and educational infrastructure, evidenced by netnames ES-XTEC-20041215 and ES-XTEC-20010620 and registrants identifying the CTTI network administrator.
  • The AS announces 24576 IPv4 addresses across 2 prefixes with only 1 observed neighbour, indicating a dedicated internal or access network rather than a transit provider.

Notable

  • Registrants for both prefixes align perfectly with the announcer, listing Administrador xarxa CTTI and the full Generalitat de Catalunya entity name.
  • The inventory consists of two distinct IPv4 blocks: 85.192.64.0/18 and 213.176.160.0/19, with no IPv6 prefixes currently announced.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS39551Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya1,357

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-12, 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 · 24.58K addresses IPv6 0 prefixes

CountryNamePrefixes
ESSpain2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS21193
Registry name
XARXA-AS
Registrant
Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya
Abuse contact
cert@ciberseguretat.cat
Registered
2004-11-11
Last changed
2026-03-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 23 with no ROA
ROAs
0 authorising AS21193
ASPA
no ASPA record
IRR
100% registered · 23 of 23 announcements
Route objects
27 naming AS21193

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: 436 networks and 1,769 prefixes, as published 2026-10-13. 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