asn.dev

Autonomous system

AS28850 ZZZS-SI-ASN Health Insurance Institute of Slovenia

Unclassified RIPE

IPv4 addresses 1.02K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly SI
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Zavod za zdravstveno zavarovanje Slovenije

Slovenia · AI-generated

government health business slovenia

The AS handle ZZZS-SI-ASN is held by Zavod za zdravstveno zavarovanje Slovenije, the Health Insurance Institute of Slovenia.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by reverse DNS entries such as n205-128.zzzs.si and n158-64.zzzs.si which point to the zzzs.si domain.
  • The inventory consists of 1024 IPv4 addresses across 3 prefixes, with a neighbour count of 2, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

  • All registrants for the announced prefixes (194.116.204.0/23, 194.59.185.0/24, 195.190.158.0/24) are listed as Zavod za zdravstveno zavarovanje Slovenije with the netname ZZZS, fully aligning with the AS holder.
  • The address inventory is finely subdivided into three distinct blocks, consistent with site-by-site segmentation for a large national institution.

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
AS34779T-2, d.o.o.156
AS21283A1 Slovenija telekomunikacijske storitve,d.d.24

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, 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 3 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
SISlovenia3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS28850
Registry name
ZZZS-SI-ASN
Registrant
AS5603-MNT
Abuse contact
borut.pohar@zzzs.si
Registered
2003-03-14
Last changed
2019-08-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS28850
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS28850

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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