Autonomous system
AS16153 SCS-AS
Unclassified RIPE
Summary
Servei Catala de la Salut
government enterprise infrastructure
Sixty-five thousand addresses in one block, behind a single observed upstream.
What it's used for
- A regional health service's network. A single IPv4 prefix announced from Spain, no IPv6, sixty-five thousand five hundred and thirty-six addresses, through one observed BGP neighbour.
Notable
- The whole holding is one very large block, the biggest single allocation size in common use, and there is nothing else attached to the number.
- The netname is three letters that appear nowhere else in the record followed by the service's own initials.
- The first contact is a network administrator role belonging to the regional government's technology and telecommunications centre, written in the regional language rather than the national one.
- The health service is listed second, and an abuse contact third.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- Health services accumulate addresses because every hospital, clinic and laboratory in a region ends up on the same network, and medical devices are numbered like computers even when they are effectively appliances.
- One upstream for a whole region's health computing sounds fragile, but a network like this mostly talks to itself. The external connection carries administration and referrals, and the clinical traffic never leaves the regional network at all.
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
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.
| AS | Network | Paths seen |
|---|---|---|
| AS39551 | Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya | 177 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-27, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 65.54K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| ES | Spain | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS16153- Registry name
- SCS-AS
- Registrant
- GENCAT-MNT
- Abuse contact
- evidal@catsalut.cat
- Registered
- 1970-01-01
- Last changed
- 2026-03-30
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS16153
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 2 naming AS16153
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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