AS25192 CZ.NIC, z.s.p.o.

Czechia CZNIC-AS RIPE 8 IPv4 prefixes 7 IPv6 prefixes

IPv4 addresses

6,400

IPv6 /48 networks

65,542

RPKI

15 valid0 no ROA

Peers and downstreams

151

Holder

AS name: CZNIC-AS
Description: CZ.NIC, z.s.p.o.
Organisation: CZ.NIC, z.s.p.o.
Abuse contact: abuse@nic.cz
Assigned: 2002-08-27
Registered: 2002-08-28
Record last changed: 2017-11-15 09:19 UTC

185.43.132.0/22 185.43.134.0/24 193.29.206.0/24 194.0.12.0/24 194.0.13.0/24 194.0.14.0/24 212.237.229.0/24 217.31.192.0/20

AS553	Belwue BELWUE
AS559	SWITCH Switch
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH NEXTLAYER-AS
AS1828	Unitas Global UNITAS
AS1836	green.ch AG GREEN
AS3212	Telemach Slovenija d.o.o. TELEMACH
AS3214	xTom GmbH XTOM
AS4230	CLARO S.A. AS4230
AS4455	IX Reach Ltd BSO
AS5392	TELNET S.r.l. TELNET-ITALY
AS5394	UNIDATA S.p.A. Unidata
AS5405	Inter.link GmbH INTERDOTLINK
AS6057	Administracion Nacional de Telecomunicaciones AS6057
AS6204	TMRC GROUP SRL ZET-NET
AS6424	EDGOO NETWORKS UNIPESSOAL LDA EDGOO
AS6663	Euroweb Romania S.R.L. TTI-NET
AS6695	DE-CIX Management GmbH DECIX-AS
AS6797	GlobalConnect AB GLOBALCONNECT-NET
AS6881	NIX.CZ z.s.p.o. NIXCZ
AS7195	EDGEUNO S.A.S AS7195
AS7713	PT Telekomunikasi Indonesia telkomnet-as-ap
AS8218	Zayo Infrastructure France SA NEO-ASN
AS8298	IPng Networks GmbH IPNG
AS8529	Zain Omantel International FZ-LLC OMANTEL-AS
AS8660	Italiaonline S.p.A. MATRIX-AS
AS8758	Iway AG IWAY
AS8772	NetAssist LLC NLineLLC
AS8888	xTom Pty Ltd XTOM
AS9304	HGC Global Communications Limited HUTCHISON-AS-AP
AS12577	MMC GmbH MMC-AT-AS
AS12637	SEEWEB s.r.l. SEEWEB
AS12779	IT.Gate S.p.A. ITGATE
AS12859	BIT BV NL-BIT
AS13237	euNetworks GmbH LAMBDANET-AS
AS14630	Invesco Group Services, Inc. INVESCO
AS14840	BR.Digital Telecom AS14840
AS15547	netplus.ch SA NETPLUS
AS15605	Connesi s.p.a. CONNESI
AS16876	ICANN ICANN-DC
AS17639	Converge ICT Solutions Inc. CONVERGE-AS
AS18106	Viewqwest Pte Ltd VIEWQWEST-SG-AP
AS20473	The Constant Company, LLC AS-VULTR
AS20485	Joint Stock Company TransTeleCom TRANSTELECOM
AS20764	CJSC RASCOM RASCOM-AS
AS20932	Services Industriels de Geneve SIG-ST
AS21412	UAB "Cgates" CGATES-AS
AS22356	Durand do Brasil Ltda AS22356
AS22548	Nucleo de Inf. e Coord. do Ponto BR - NIC.BR AS22548
AS24482	SG.GS SGGS-AS-AP
AS24889	Monzoon Networks AG MONZOON-AS
AS24961	WIIT AG MYLOC-AS
AS25091	IP-Max SA IP-Max
AS25160	Vorboss Limited VORBOSS
AS25220	equada network GmbH GLOBALNOC-AS
AS27678	NIC Chile AS27678
AS28624	PROVEDORA CMA INTERNET LTDA AS28624
AS28634	Life Tecnologia Ltda. AS28634
AS28716	Retelit Digital Services S.p.A. RETELIT-AS
AS28917	Fiord Networks, UAB Fiord-AS
AS29075	IELO-LIAZO SERVICES SAS IELO
AS29140	Hostserver GmbH HOSTSERVER-AS
AS29504	Freenet Liberec, z.s. LBCFREE
AS29632	Netassist International EOOD NASSIST-AS
AS29691	Nine Internet Solutions AG NINE
AS31133	PJSC MegaFon MF-MGSM-AS
AS31510	Innsbrucker Kommunalbetriebe AG IKB-AS
AS34019	Hivane Association HIVANE
AS34177	Celeste SAS CELESTE-AS
AS34288	Kantonsschule Zug AS34288
AS34549	meerfarbig GmbH & Co. KG MEER-AS
AS34867	Cosmonova LLC COSMONOVA-AS
AS34927	iFog GmbH iFog-GmbH
AS35280	F5 Networks SARL F5
AS35360	Gargunet GARGUNET
AS35598	INETCOM CARRIER LLC INETCOM
AS35625	Eurofiber France SAS EUROFIBER-FRANCE
AS35710	weber.digital GmbH WEBERCLOUD
AS36236	NetActuate, Inc NETACTUATE
AS37239	ICTGlobe Management (Pty) Ltd
AS37497	Network Platforms (PTY) LTD
AS37680	Cool Ideas Service Provider (Pty) Ltd
AS39249	Netassist International EOOD KICUA-AS
AS39351	31173 Services AB ESAB-AS
AS40528	ICANN ICANN-LAX
AS40994	Hohl IT e.U. Alwyzon
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS42473	Anexia Cloud Solutions GmbH AS-ANEXIA
AS42541	Fiberby ApS FIBERBY
AS44901	Belcloud LTD belcloud
AS45489	Sri Lanka Telecom PLC, GLobal Peering SLT-GLOBAL
AS47147	Anexia Cloud Solutions GmbH AS-ANX
AS47692	Nessus GmbH NESSUS
AS48362	Tkswf TKSWF-AS
AS48919	UACITY Ltd. UA-CITY-AS
AS49544	i3D.net B.V i3Dnet
AS49605	Digital Telecommunication Services S.r.l. DTS-AS
AS49709	Videobyte S.r.l. VIDEOBYTE
AS50304	Blix Solutions AS BLIX
AS50877	Airbeam S.r.l. AIRBEAM-AS
AS51184	Fonira Telekom GmbH FONIRA
AS51185	MainStreaming SpA MAINSTREAMING-AS
AS51519	Karabro AB Karabro
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S. AS52320
AS52873	Softdados Telecomunicacoes AS52873
AS56662	Eutpnet EUTPNET
AS56987	ABACLOUDA SAS AS-ABACLOUDA
AS57111	NOVA NETWORKS S.R.L. ALTITUD
AS57777	Jeroen Massar MASSAR
AS58057	Securebit AG SECUREBIT
AS58299	Openfactory GmbH OPENFACTORY-AS
AS59919	Brainbox S.r.l. BRAINBOX
AS60171	AFR-IX TELECOM S.A. AFRIX-AS
AS60503	FNX Tecnologia LTDA FNXTEC
AS61292	Blix Group AS BLXGRP
AS61573	IP TELECOM AS61573
AS61626	UNIVERSIDADE ESTADUAL DE PONTA GROSSA AS61626
AS64475	Freifunk Frankfurt am Main e.V. FREIFUNK-FRANKFURT
AS133210	EN Technologies Pte Ltd ENTECHNOLOGIES-AS-AP
AS142271	EWS DS Networks Inc DOUBLESQUARE-AS-AP
AS198150	SIACOM JSC SIACOM-AS
AS198249	Ops One AG OPSONE
AS198385	AlpineDC SA AlpineDC
AS199524	G-Core Labs S.A. GCORE
AS199938	Netzwerge GmbH NETZWERGE
AS202032	GOLINE SA GOLINE
AS205103	Telegraph42 Management GmbH TELEGRAPH-AS
AS205112	PHILUNET GmbH PHILUNET
AS206356	Freifunk Essen e.V. Freifunk-Essen
AS209823	Enki Multimedia EURL ENKI-AS
AS210937	Showfom
AS212024	Risson RISSON
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS213151	Christian Elsen CHRISELSEN
AS213241	TECHIT.BE SRL TECHIT
AS262427	Invista Net Provedor de Acesso Ltda AS262427
AS263152	MIGO TELECOM AS263152
AS263237	PowerHost Telecom SPA AS263237
AS264409	Huge Solucoes Corporativas Ltda AS264409
AS264479	Turbozone Internet AS264479
AS271253	LINK BRASIL TELECOMUNICACOES LTDA AS271253
AS328137	Web Squad Connect (Pty) Ltd
AS328206	Johannesburg Area Wireless User Group (JAWUG)
AS394256	Tech Futures Interactive Inc. CLOUDSINGULARITY
AS396356	Latitude.sh LATITUDE-SH

Routing changes

Last 30 days

2026-10-04 03:54 UTC	Neighbour gone	AS44306	upstream
2026-10-04 03:54 UTC	Neighbour gone	AS31027	peer
2026-10-04 03:54 UTC	Neighbour gone	AS30886	upstream
2026-10-04 03:54 UTC	New neighbour	AS8888	peer
2026-10-04 03:54 UTC	New neighbour	AS44901	peer
2026-10-04 03:54 UTC	New neighbour	AS28917	peer
2026-10-04 03:54 UTC	New neighbour	AS264479	peer
2026-10-04 03:54 UTC	New neighbour	AS142271	peer
2026-10-04 03:54 UTC	Relationship changed	AS12779	upstream to peer
2026-10-04 03:54 UTC	New neighbour	AS9304	peer
2026-10-04 03:54 UTC	New neighbour	AS8772	peer
2026-10-04 03:54 UTC	Relationship changed	AS8758	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS7713	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS7195	upstream to peer
2026-10-04 03:54 UTC	New neighbour	AS6797	peer
2026-10-04 03:54 UTC	Relationship changed	AS6695	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS61626	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS6057	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS50304	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS48362	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 03:54 UTC	New neighbour	AS4230	peer
2026-10-04 03:54 UTC	Relationship changed	AS40528	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS396356	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS394256	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS39249	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS35625	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS35280	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS34867	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS34549	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS34177	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS34019	upstream to peer
2026-10-04 03:54 UTC	New neighbour	AS31133	peer
2026-10-04 03:54 UTC	Relationship changed	AS29691	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS29632	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS28716	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS27678	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS24961	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS24889	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS22548	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS212024	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS20764	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS205103	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS20485	upstream to peer
2026-10-04 03:54 UTC	New neighbour	AS20473	peer
2026-10-04 03:54 UTC	Relationship changed	AS1836	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS1764	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS16876	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS14840	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS12859	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS12637	upstream to peer
2026-10-04 03:54 UTC	Relationship changed	AS12577	upstream to peer

WHOIS

aut-num:        AS25192
as-name:        CZNIC-AS
org:            ORG-Cz1-RIPE
admin-c:        CZ-RIPE
tech-c:         CZ-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:        
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT IMPORT
remarks:        
remarks:        EXCHANGE POINTS IMPORT
remarks:        
remarks:        CUSTOMERS IMPORT
remarks:        ----------------------------------------------------------------------
remarks:        
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT EXPORT
remarks:        
remarks:        EXCHANGE POINTS EXPORT
remarks:        
remarks:        CUSTOMERS EXPORT
remarks:        ----------------------------------------------------------------------
remarks:        
mnt-by:         CZ-NIC-MNT
created:        2002-08-28T09:25:35Z
last-modified:  2017-11-15T09:19:53Z
source:         RIPE
% 6 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/25192

const res = await fetch('https://ip-fd.net/api/v1/asn/25192', {
  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/25192', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/25192');
curl_setopt($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/25192", 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.

AS1299	Arelion Sweden AB TWELVE99
AS6461	Zayo Bandwidth ZAYO-6461
AS6939	Hurricane Electric LLC HURRICANE
AS8674	Netnod AB NETNOD-IX
AS12570	O2 Czech Republic, a.s. ITSELF
AS25248	RADIOKOMUNIKACE a.s. BlueTone-AS
AS29802	HIVELOCITY, Inc. HVC-AS
AS37474	ISPA SA
AS38001	NewMedia Express Pte Ltd NEWMEDIAEXPRESS-AS-AP

AS20701	CZ.NIC, z.s.p.o. CZNIC-AS3
AS25152	Reseaux IP Europeens Network Coordination Centre (RIPE NCC) K-ROOT-SERVER
AS26710	ICANN ICANN-ANYCASTED-SERVICES
AS29067	LLC "Hostmaster" UATLD-AS
AS52234	NIC Chile AS52234
AS52304	NIC Chile AS52304
AS61455	LACTLD - LATIN AMERICAN AND CARIBBEAN TLD ASSOCIATION AS61455