asn.dev

Autonomous system

AS198346 NETFORMS-AS

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 1 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Peering.czPrague, Czech Republic185.0.20.43

Transit providers

8 upstream, 0 downstream and 15 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS39392SH.cz s.r.o.163
AS28725CETIN a.s.92
AS6939Hurricane Electric LLC61
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH5
AS24482SG.GS5
AS29504Freenet Liberec, z.s.5
AS37721Virtual Technologies & Solutions5
AS20562Broadband Hosting B.V.3

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 1 prefixes · 1.02K addresses IPv6 2 prefixes

CountryNamePrefixes
CZCzechia3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS198346
Registry name
NETFORMS-AS
Registrant
CZ-NETFORMS-MNT
Abuse contact
noc@netforms.cz
Registered
2011-12-20
Last changed
2023-02-15
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
NETFORMS
Also known as
4NET
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
IRR as-set
AS198346
Present at
1 exchanges
Website
http://www.netforms.cz

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
7 authorising AS198346
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
8 naming AS198346

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