ASN Lookup Tool

Core4Net, s.r.o. core4net.cz CZ CZ 4 Routes

AS Data

AS197307

AS197307Core4Net, s.r.o.

AS Number 197307
AS Name bnet-internet_cz
Organization Core4Net, s.r.o. (org-cs455-ripe)
Country CZ
Website core4net.cz
Number of IPv4 Routes 3
Number of IPv6 Routes 1
ASN type BUSINESS
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2010-10-11

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Use ASN data for AS197307 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
79.142.144.0/20 4096
185.51.28.0/22 1024
185.180.1.0/24 256
2a02:24c0::/32 ~79×10²⁷

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS196608 - AS197840'

as-block:       AS196608 - AS197840
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2024-09-04T14:04:38Z
last-modified:  2024-09-04T14:04:38Z
source:         RIPE

% Information related to 'AS197307'

% Abuse contact for 'AS197307' is 'abuse@core4net.cz'

aut-num:        AS197307
as-name:        bnet-internet_cz
org:            ORG-CS455-RIPE
import:         from AS16019 accept ANY
import:         from AS6881 accept ANY
import:         from AS47200 accept ANY
import:         from AS112 accept ANY
import:         from AS39392 accept ANY
import:         from AS61195 accept ANY
import:         from AS32934 accept ANY
import:         from AS714 accept ANY
import:         from AS51331 accept ANY
export:         to AS16019 announce AS197307
export:         to AS6881 announce AS197307
export:         to AS47200 announce AS197307
export:         to AS112 announce AS197307
export:         to AS39392 announce AS197307
export:         to AS61195 announce AS197307
export:         to AS32934 announce AS197307
export:         to AS714 announce AS197307
export:         to AS51331 announce AS197307
admin-c:        BBSH1-RIPE
tech-c:         BBSH1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         cz-bnet-business-1-mnt
created:        2010-10-11T13:16:03Z
last-modified:  2026-05-23T15:08:34Z
source:         RIPE

organisation:   ORG-CS455-RIPE
org-name:       Core4Net, s.r.o.
country:        CZ
reg-nr:         04749511
org-type:       LIR
address:        Nakladni 3002/2
address:        74601
address:        Opava
address:        CZECH REPUBLIC
phone:          +420773665080
admin-c:        JS18824-RIPE
admin-c:        DP13521-RIPE
tech-c:         JS18824-RIPE
tech-c:         DP13521-RIPE
abuse-c:        AR38476-RIPE
mnt-ref:        cz-core4net-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         cz-core4net-1-mnt
created:        2016-11-28T16:16:35Z
last-modified:  2026-05-23T17:18:06Z
source:         RIPE # Filtered

role:           BNET Business, s.r.o. Hostmaster
address:        BNET Business, s.r.o., Nakladni 3002/2, 74601 Opava, CZ
phone:          +420777665080
org:            ORG-BBS15-RIPE
admin-c:        JS18824-RIPE
tech-c:         JS18824-RIPE
tech-c:         JK13894-RIPE
nic-hdl:        BBSH1-RIPE
abuse-mailbox:  abuse@bnet-internet.cz
mnt-by:         cz-bnet-business-1-mnt
created:        2018-07-17T06:46:15Z
last-modified:  2026-05-23T15:41:26Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.123 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS199081 Lancom Ltd. GR
AS40994 Hohl IT e.U. AT
AS6881 NIX.CZ z.s.p.o. CZ
AS39392 SH.cz s.r.o. CZ
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS60602 Inovare-Prim SRL MD
AS22356 Durand do Brasil Ltda BR
AS9136 Wobcom GmbH DE
AS47200 NIX.CZ z.s.p.o. CZ
AS198150 SIACOM JSC GE
AS8529 Zain Omantel International FZ-LLC AE
AS57344 Telehouse EAD BG
AS214757 Jakub Krsa CZ
AS29504 Freenet Liberec, z.s. CZ
AS714 Apple Inc. US
AS47692 Nessus GmbH AT
AS53062 GGNET TELECOMUNICACOES LTDA BR
AS206735 Novelcomm LP GR
AS14840 BR.Digital Telecom BR
AS37721 Virtual Technologies & Solutions BF
AS32590 Valve Corporation US
AS57463 NetIX Communications JSC BG
AS12735 TurkNet Iletisim Hizmetleri A.S. TR
AS15694 Atman Sp. z o.o. PL
AS8801 Rocket Fibre Ltd GB
AS8447 A1 Telekom Austria AG AT
AS6204 INTERKVM HOST SRL RO
AS212483 LEVEL EIGHTY SIX COMMUNICATIONS LTD GB
AS24482 SG.GS SG
AS61195 Peering.cz s.r.o. CZ
AS1764 Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH AT
AS51184 Fonira Telekom GmbH AT
AS28917 Fiord Networks, UAB LT
AS6663 Euroweb Romania S.R.L. RO
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD GB
AS35369 LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation AT
AS59890 Kabel TV Lampert GmbH & Co KG AT
AS8529 Zain Omantel International FZ LLC AE
AS36236 NetActuate, Inc US
AS4455 IX Reach Ltd GB
AS16276 OVH SAS FR
AS8218 operated Upstreamnet gmbh FR
AS8218 Zayo Infrastructure France SA FR
AS59890 Kabel-TV Lampert GmbH & Co KG AT
AS3212 Telemach Slovenija d.o.o. SI
AS24940 Hetzner Online GmbH DE
AS60068 Datacamp Limited GB
AS39120 Convergenze S.p.A. IT
AS216265 ARISTO NETWORKS LTD GB
AS264409 GRUPO YAX BR
AS263444 Open X Tecnologia Ltda BR
AS51331 SychrovNET s.r.o CZ
AS44306 OMONIA HR
AS16019 Vodafone Czech Republic a.s. CZ
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH AT
AS13194 UAB "Bite Lietuva" LT
AS32934 Facebook, Inc. US
AS41327 Fiber Telecom S.p.A. IT
AS13194 UAB Bite Lietuva LT

Upstreams

AS Number Description Country
AS39120 Convergenze S.p.A. IT
AS39392 SH.cz s.r.o. CZ
AS14840 BR.Digital Telecom BR
AS1764 Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH AT
AS263444 Open X Tecnologia Ltda BR
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS22356 Durand do Brasil Ltda BR
AS16019 Vodafone Czech Republic a.s. CZ
AS6663 Euroweb Romania S.R.L. RO
AS13194 UAB Bite Lietuva LT
AS8218 operated Upstreamnet gmbh FR
AS4455 IX Reach Ltd GB
AS20562 Broadband Hosting B.V. NL

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Frequently Asked Questions

ASN AS197307 is an Autonomous System Number used to identify a network for BGP internet routing.
AS197307 is listed under Core4Net, s.r.o..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.