asn.dev

Autonomous system

AS198977 UNART UnArtel s.r.o.

Unclassified RIPE

IPv4 addresses 2.56K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

UnArtel s.r.o.

Czechia · AI-generated

business czech data network

The AS handle UNART is held by UnArtel s.r.o.

What it's used for

  • The address space carries corporate network infrastructure, evidenced by reverse DNS entries such as cust-5-104-18-0.unartel.cz and cust-5-104-19-255.unartel.cz.
  • The AS announces 2560 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a small, self-contained internal estate rather than a transit or access network.
  • Traffic from this AS consists of data network installation, maintenance, and management services provided by UnArtel, a subsidiary of UnArt, z.s., focused on commercial IT infrastructure.

Notable

  • Registrants for the largest prefixes include Neutral czFree eXchange; FreeTel, s.r.o.; NFX z.s.p.o. / FreeTel, s.r.o. / AS 8251 last-resort abuse mailbox for 5.104.16.0/21 and UnArtel s.r.o.; Abuse Contact for 185.69.70.0/23, showing a mix of historical and current ownership.
  • UnArtel s.r.o. is a subsidiary of UnArt, z.s., established to provide commercial services for the installation, maintenance, and management of data networks.
  • The inventory is finely subdivided into two distinct IPv4 blocks, one associated with FreeTel and one with UnArtel, reflecting a corporate estate with segmented address space.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8251FreeTel, s.r.o.156

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-13, 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 · 2.56K addresses IPv6 1 prefixes

CountryNamePrefixes
CZCzechia3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS198977
Registry name
UNART
Registrant
CZNFX-MNT
Abuse contact
abuse@unart.cz
Registered
2012-07-05
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS198977
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS198977

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: 455 networks and 1,849 prefixes, as published 2026-11-13. 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