AS197307 Core4Net, s.r.o.

Czechia bnet-internet_cz RIPE 3 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

5,376

IPv6 /48 networks

65,536

RPKI

4 valid0 no ROA

Peers and downstreams

Holder

AS name: bnet-internet_cz
Description: Core4Net, s.r.o.
Organisation: Core4Net, s.r.o.
Registered in: Opava, Czechia
Abuse contact: abuse@core4net.cz
Assigned: 2010-10-10
Registered: 2010-10-11
Record last changed: 2026-05-23 15:08 UTC

185.180.1.0/24 185.51.28.0/22 79.142.144.0/20

Routing changes

Last 30 days

2026-10-03 18:27 UTC	Relationship changed	AS8218	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS6663	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS6204	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS4455	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS264409	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS22356	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS20562	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS1764	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS14840	upstream to peer
2026-10-03 18:27 UTC	Relationship changed	AS13194	upstream to peer

WHOIS

aut-num:        AS197307
as-name:        bnet-internet_cz
org:            ORG-CS455-RIPE
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
% 18 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/197307

const res = await fetch('https://ip-fd.net/api/v1/asn/197307', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/197307', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/197307');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/197307", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

AS6939	Hurricane Electric LLC HURRICANE
AS16019	Vodafone Czech Republic a.s. VODAFONE-CZ-AS
AS39392	SH.cz s.r.o. SuperNetwork

AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH NEXTLAYER-AS
AS3212	Telemach Slovenija d.o.o. TELEMACH
AS4455	IX Reach Ltd BSO
AS6204	TMRC GROUP SRL ZET-NET
AS6663	Euroweb Romania S.R.L. TTI-NET
AS6881	NIX.CZ z.s.p.o. NIXCZ
AS8218	Zayo Infrastructure France SA NEO-ASN
AS8529	Zain Omantel International FZ-LLC OMANTEL-AS
AS13194	UAB "Bite Lietuva" BITE
AS14840	BR.Digital Telecom AS14840
AS20562	Broadband Hosting B.V. OPEN-PEERING-AS
AS22356	Durand do Brasil Ltda AS22356
AS24482	SG.GS SGGS-AS-AP
AS28917	Fiord Networks, UAB Fiord-AS
AS29504	Freenet Liberec, z.s. LBCFREE
AS35369	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation LINZAG-TELEKOM-AS
AS36236	NetActuate, Inc NETACTUATE
AS37721	Virtual Technologies & Solutions
AS40994	Hohl IT e.U. Alwyzon
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS47692	Nessus GmbH NESSUS
AS49544	i3D.net B.V i3Dnet
AS51184	Fonira Telekom GmbH FONIRA
AS59890	Kabel-TV Lampert GmbH & Co KG Kabel-TV-Lampert
AS198150	SIACOM JSC SIACOM-AS
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS264409	Huge Solucoes Corporativas Ltda AS264409