asn.dev

Autonomous system

AS56513 OPTISIS-AS

Unclassified RIPE

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly SI
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Optisis

Slovenia · AI-generated

business fiber slovenia

OPTISIS-AS is operated by Optisis d.o.o.

What it's used for

  • The address space carries corporate and business connectivity, evidenced by the netname OPTISIS-NET and the registrant Optisis d.o.o.
  • The AS announces 512 IPv4 addresses and 1 IPv6 prefix, with 2 observed neighbours, indicating a small-scale business network rather than a transit or large access provider
  • Traffic from this AS consists of business clients and corporate endpoints served by Optisis's fibre-optic infrastructure

Notable

  • The registrant Optisis d.o.o. matches the AS holder, confirming consistent ownership of the address space
  • The inventory consists of a single IPv4 prefix (91.224.172.0/23) and one IPv6 prefix (2001:67c:548::/48), representing a compact, self-contained corporate estate

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 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3212Telemach Slovenija d.o.o.101
AS43462Smart Com d.o.o.64

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
SISlovenia2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS56513
Registry name
OPTISIS-AS
Registrant
Optisis d.o.o.
Abuse contact
abuse@telemach.net
Registered
2011-03-08
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
4 authorising AS56513
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
4 naming AS56513

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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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