View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	185.43.132.0/22	CZ.NIC, z.s.p.o.
	185.43.134.0/24	E-NS-NIC-CZ Second Anycast Cloud
	193.29.206.0/24	D.NS.NIC.CZ Anycast Cloud
	194.0.12.0/24	CZ.NIC, z.s.p.o.
	194.0.13.0/24	CZ.NIC, z.s.p.o.
	212.237.229.0/24	F-NS-NIC-CZ Second Anycast Cloud
	217.31.192.0/20	CZ.NIC, z.s.p.o.
	2001:678:1::/48	CZ.NIC, z.s.p.o.
	2001:678:f::/48	CZ.NIC, z.s.p.o.
	2001:678:10::/48	CZ.NIC, z.s.p.o.
	2001:1488::/32	Provider Local Registry
	2001:148f:fffb::/48	F-NS-NIC-CZ Second Anycast Cloud
	2001:148f:fffd::/48	E-NS-NIC-CZ Second Anycast Cloud

---

Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS6939	Hurricane Electric LLC	✘	✔
	AS12570	O2 Czech Republic, a.s.	✔	✘
	AS25248	RADIOKOMUNIKACE a.s.	✔	✔
	AS38001	NewMedia Express Pte. Ltd.	✔	✔
	AS16876	ICANN	✔	✔
	AS37474	ISPA SA	✔	✔
	AS29802	HIVELOCITY, Inc.	✔	✔
	AS34867	Cosmonova LLC	✔	✔
	AS22548	Núcleo de Informação e Coordenação do Ponto BR - NIC.BR	✔	✔
	AS40528	ICANN	✔	✔
	AS8674	Netnod AB	✔	✔
	AS396356	Latitude.sh	✔	✔
	AS27678	NIC Chile	✔	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS20701	CZ.NIC, z.s.p.o.	✔	✔
	AS1299	Arelion (fka. Telia Carrier)	✔	✔
	AS26710	ICANN	✔	✔
	AS29067	Hostmaster LLC	✘	✔
	AS37474	ISPA SA	✔	✔
	AS25248	RADIOKOMUNIKACE a.s.	✔	✔
	AS61455	LACTLD - LATIN AMERICAN AND CARIBBEAN TLD ASSOCIATION	✔	✔
	AS12570	O2 Czech Republic, a.s.	✔	✘
	AS38001	NewMedia Express Pte. Ltd.	✔	✔
	AS5405	Inter.link GmbH	✔	✔
	AS8674	Netnod AB	✔	✔
	AS29802	HIVELOCITY, Inc.	✔	✔
	AS6461	Zayo Bandwidth	✔	✔
	AS396356	Latitude.sh	✔	✔
	AS34867	Cosmonova LLC	✔	✔
	AS16876	ICANN	✔	✔
	AS52304	NIC Chile	✔	✘
	AS24940	Hetzner Online GmbH	✔	✔
	AS34927	iFog GmbH	✔	✔
	AS22548	Núcleo de Informação e Coordenação do Ponto BR - NIC.BR	✔	✔
	AS52234	NIC Chile	✔	✘
	AS6204	INTERKVM HOST SRL	✔	✔
	AS34549	meerfarbig GmbH & Co. KG	✔	✔
	AS40528	ICANN	✔	✔
	AS27678	NIC Chile	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS14840	BR.DIGITAL	✔	✔
	AS25091	IP-Max SA	✔	✔
	AS8218	Zayo Infrastructure France SA	✔	✔
	AS52320	V.tal (GlobeNet)	✔	✔
	AS34019	Hivane Association	✔	✔
	AS24961	WIIT AG (fka. myLoc Managed IT AG)	✔	✔
	AS8298	IPng Networks GmbH	✔	✔
	AS7195	EdgeUno	✔	✔
	AS52025	ParadoxNetworks Limited	✔	✔
	AS58299	Openfactory GmbH	✔	✘
	AS42184	TKRZ Stadtwerke GmbH	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS6424	EDGOO NETWORKS	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS50698	TETA s.r.o.	✔	✔
	AS203329	NTT Global Data Centers EMEA GmbH	✔	✔
	AS209823	Enki Multimedia EURL	✔	✔
	AS48927	ESEVEN DevOps GmbH	✔	✔
	AS42541	Fiberby ApS	✔	✔
	AS9136	WOBCOM GmbH	✔	✔
	AS40994	Alwyzon (Hohl IT)	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✔
	AS50629	LWLcom GmbH	✔	✔
	AS20562	Open Peering (Broadband Hosting B.V.)	✔	✔
	AS42473	ANEXIA Internetdienstleistungs GmbH	✔	✔
	AS1764	Next Layer Telecommunications	✔	✔
	AS31027	GlobalConnect A/S	✔	✔
	AS21263	TeleData GmbH	✔	✔
	AS24482	SG.GS	✔	✔
	AS35625	Eurofiber France SAS	✔	✔
	AS47147	ANEXIA Internetdienstleistungs GmbH	✔	✔
	AS13101	TNG Stadtnetz GmbH	✔	✔
	AS25291	SysEleven GmbH	✔	✔
	AS264409	Huge Networks	✔	✘
	AS20473	The Constant Company, LLC	✔	✔
	AS12676	HKN GmbH	✔	✔
	AS205614	Medialine EuroTrade AG	✔	✔
	AS21473	PFALZKOM GmbH	✔	✔
	AS26073	Cofractal, Inc.	✔	✔
	AS56987	ABACLOUDA SAS	✔	✔
	AS47689	Pudu, LLC	✔	✔
	AS30781	Free Pro SAS	✘	✔
	AS8860	Delta HighTech Ltd.	✔	✘
	AS9498	Bharti Airtel Ltd.	✔	✔
	AS210752	Global Legal Entity Identifier Foundation	✔	✔
	AS4455	IX Reach Ltd	✔	✘
	AS328964	Insight Actuarial Solutions (Pty) Ltd	✔	✔
	AS36236	NetActuate, Inc	✔	✔
	AS29075	IELO-LIAZO SERVICES SAS	✔	✔
	AS25152	RIPE NCC - K-root	✔	✔
	AS47272	HYEHOST LTD	✔	✔
	AS553	BelWü	✔	✔
	AS7713	PT Telkom Indonesia Tbk	✔	✔
	AS12779	IT.Gate S.p.A.	✔	✔
	AS4601	Antonios A. Chariton	✔	✔
	AS13335	Cloudflare, Inc.	✔	✔
	AS56382	vServer.site LTD	✔	✔
	AS48362	Stadtwerke Feldkirch	✔	✔
	AS8888	xTom Pty Ltd	✔	✔
	AS57777	Jeroen Massar	✔	✔
	AS25394	MK Netzdienste Verwaltungs GmbH trading as MK Netzdie...	✔	✔
	AS55850	Mercury NZ Limited	✔	✔
	AS37100	SEACOM Limited	✔	✔
	AS3214	xTom GmbH	✔	✔
	AS9002	RETN Limited	✘	✔
	AS37497	Network Platforms (PTY) LTD	✔	✘
	AS269180	VIPNET Conexão	✔	✔
	AS37468	Angola Cables	✔	✔
	AS56662	Marcin Gondek	✘	✔
	AS6695	DE-CIX Frankfurt Route Servers	✔	✔
	AS22356	Durand do Brasil Ltda	✔	✔
	AS16970	MIDnet	✔	✘
	AS12387	TON Total optical Networks AG	✔	✘
	AS12552	GlobalConnect (IP-Only)	✔	✔
	AS52999	START TELECOM LTDA	✔	✔
	AS48919	UACITY Ltd.	✘	✔
	AS21430	WIA spol. s.r.o.	✔	✘
	AS60503	FNX Tecnologia LTDA	✔	✔
	AS35280	F5 Networks SARL	✔	✔
	AS52210	Accuris Technologies Ltd.	✔	✔
	AS47692	Nessus GmbH	✔	✔
	AS6206	Netrouting B.V.	✔	✘
	AS203489	WiMore S.r.l.	✔	✔
	AS8772	NetAssist LLC	✘	✔
	AS393577	Tritan Development	✔	✘
	AS265038	TELFO SERVICO DE TELECOMUNICACOES LTDA	✔	✘
	AS46997	Black Mesa Corporation	✔	✔
	AS214331	Teske Virtual System Ltda	✔	✔
	AS16909	imput	✔	✔
	AS8758	Iway AG	✔	✔
	AS8881	1&1 Versatel Deutschland GmbH	✔	✔
	AS60150	area-7 IT-Services GmbH	✔	✔
	AS35661	VIRTUA SYSTEMS SAS	✔	✘
	AS9050	Orange Romania S.A.	✔	✘
	AS47605	FNE-Finland Oy	✔	✔
	AS12400	Partner Communications Ltd.	✔	✘
	AS43426	Netassist Limited	✘	✔
	AS208016	The Infrastructure Company GmbH	✔	✔
	AS212341	Stephan Rakowski, trading as CSN-Solutions GmbH	✔	✘
	AS142271	EWS DS Networks Inc	✔	✔
	AS13058	serve-u - Buchholz und Sünderhauf GbR	✔	✔
	AS62023	NYNEX satellite OHG	✔	✔
	AS199938	Netzwerge GmbH	✔	✘
	AS150000	Data-Beam Business Solution	✔	✘
	AS44066	firstcolo GmbH	✔	✔
	AS8717	A1 Bulgaria EAD	✔	✘
	AS213241	TECHIT.BE SRL	✔	✔
	AS56665	Proximus Luxembourg S.A.	✔	✔
	AS250	AS250.net Foundation	✔	✔
	AS205112	PHILUNET GmbH	✔	✔
	AS57344	Telehouse EAD	✔	✘
	AS196610	DE-CIX Academy	✔	✘
	AS64475	Freifunk Frankfurt am Main e.V.	✔	✔
	AS13237	euNetworks GmbH	✔	✔
	AS198385	AlpineDC SA	✔	✘
	AS8767	M-net Telekommunikations GmbH	✔	✔
	AS4651	The Communications Authority of Thailand (CAT)	✔	✘
	AS59238	Innovative Extremist Co., Ltd.	✔	✔
	AS52888	UNIVERSIDADE FEDERAL DE SAO CARLOS	✔	✔
	AS329095	AFRIMETRO	✔	✔
	AS38158	PT Cyberindo Aditama	✔	✔
	AS37271	Workonline Communications(Pty) Ltd	✔	✔
	AS57630	84 Grams AB	✔	✔
	AS262287	Latitude.sh LTDA	✔	✔
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS37239	ICTGlobe Management (Pty) Ltd	✔	✘
	AS262880	RADAR WISP LTDA	✔	✘
	AS1916	RNP - Rede Nacional de Ensino e Pesquisa	✔	✔
	AS57463	NetIX Communications JSC	✔	✘
	AS17639	Converge ICT Solutions Inc.	✔	✔
	AS269396	UNIR TELECOM	✔	✔
	AS1828	Unitas Global	✘	✔
	AS63927	RISE	✔	✔
	AS15169	Google LLC	✔	✘
	AS38136	Akari Networks	✔	✔
	AS394256	Tech Futures Interactive Inc.	✔	✔
	AS50131	Spartan Host Ltd	✔	✔
	AS9886	CTCSCI TECH LIMITED	✔	✔
	AS395823	doof.net	✔	✔
	AS40350	Key Cooperative	✔	✘
	AS60171	AFR-IX TELECOM S.A.	✔	✔
	AS27523	Kawaii Networks LLC	✘	✔
	AS1251	FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO	✔	✔
	AS400818	Ausra LLC	✔	✔
	AS54309	NEGU	✔	✘
	AS835	GoCodeIT Inc	✔	✘
	AS51519	Karabro AB	✔	✔
	AS23459	applebee	✔	✔
	AS53597	Hoyos Consulting LLC	✔	✔
	AS62642	Bigleaf Networks, Inc.	✔	✘
	AS39351	31173 Services AB	✔	✘
	AS60345	icixs networks UG (haftungsbeschraenkt)	✔	✘
	AS8551	Bezeq International Ltd.	✔	✘
	AS59605	Zain Global	✔	✘
	AS30844	Liquid Intelligent Technologies	✘	✔
	AS208431	Adrian Pistol	✘	✔
	AS8764	Telia Lietuva, AB	✔	✘
	AS49009	Freifunk Rheinland e.V.	✘	✔
	AS2854	LLC Orange Business Services	✔	✘
	AS25369	Hydra Communications Ltd	✔	✘
	AS47734	Telecom IT Solutions SRL	✔	✘
	AS12941	intersaar GmbH	✔	✘
	AS24679	kyberio GmbH	✔	✘
	AS202617	Kering Eyewear S.p.A.	✔	✘
	AS211301	Collin Schneeweiss trading as Unesty Company	✔	✘
	AS30766	GGew net GmbH	✔	✘
	AS3212	Telemach Slovenija d.o.o.	✔	✘
	AS1836	green.ch AG	✘	✔
	AS136557	Host Universal Pty Ltd	✔	✘
	AS203536	FNOH DSL Suedheide GmbH	✔	✘
	AS8966	Etisalat (ETC)	✔	✘
	AS16097	HL komm Telekommunikations GmbH	✔	✘
	AS30999	Emtel	✔	✘
	AS1820	WNET TELECOM USA Corp.	✔	✘
	AS24724	Atman Sp. z o.o.	✔	✘
	AS31319	ESTRACOM SPA	✔	✘
	AS209768	white2net Srl	✔	✘
	AS28283	Adylnet Telecom	✔	✘
	AS9304	HGC Global Communications Limited	✔	✔
	AS197301	Parknet F.M.B.A.	✔	✔
	AS559	SWITCH	✘	✔
	AS50304	Blix Solutions AS	✔	✘
	AS64445	Michele Pietravalle trading as NetJoin	✔	✔
	AS263903	INFORBARRA TELECOM	✔	✘
	AS137552	Terabix	✔	✔
	AS50392	LLC Campus Networks	✔	✔
	AS263237	PowerHost Telecom SPA	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✔
	AS37721	Virtual Technologies & Solutions	✔	✘
	AS269070	Hostzone Tecnologia LTDA	✔	✘
	AS52468	UFINET PANAMA S.A.	✔	✘
	AS59217	Azonne Limited	✔	✔
	AS262589	Megatelecom (Internexa BR)	✘	✔
	AS212895	Johannes Ernst	✘	✔
	AS400304	Redoubt Networks (Crunchbits)	✔	✘
	AS10242	US Internet Corp	✔	✘
	AS263998	Machado & Mascarelo Sonorizacao Ltda	✔	✘
	AS57695	Misaka Network, Inc.	✘	✔
	AS917	Misaka Network, Inc.	✔	✘
	AS40138	Mach Dilemma, LLC	✔	✘
	AS54429	Local Connectivity Lab	✔	✘
	AS12637	Seeweb s.r.l.	✔	✔
	AS398465	Rackdog LLC	✔	✘
	AS31500	Global Network Management Inc	✔	✘
	AS49581	Ferdinand Zink trading as Tube-Hosting	✔	✘
	AS207054	FLYNET SRL	✔	✔
	AS8849	Melbikomas UAB	✘	✔
	AS131149	Yuan-Jhen Info., Co., Ltd	✔	✘
	AS8473	Bahnhof AB	✔	✘
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS34428	Giulio Lo Presti	✔	✘
	AS10099	China Unicom Global	✔	✘
	AS38195	Superloop	✔	✘
	AS42739	Hawe Telekom S.A. in Restructuring	✔	✘
	AS45796	UIH / BB Connect	✘	✔
	AS58552	PT Multidata Rancana Prima	✔	✘
	AS215248	Bastiaan Mathijs Brink	✔	✘
	AS41720	Revolution Provider S.r.l.	✔	✘
	AS202032	GOLINE SA	✔	✘
	AS153087	PT Telemedia Prima Nusantara	✔	✘
	AS57304	RETN Russia	✘	✔
	AS43139	Maximum-Net LLC	✘	✔
	AS28716	Retelit Digital Services S.p.A.	✔	✘
	AS203847	Marconi Solutions Srls	✔	✘
	AS1680	Cellcom Fixed Line Communication L.P	✔	✘
	AS34772	NEOTEL DOO export-import Skopje	✔	✘
	AS56786	NEXIM ITALIA SRL	✔	✘
	AS35297	Dataline LLC	✘	✔
	AS17557	Pakistan Telecommunication Company Limited	✔	✘
	AS49367	Seflow s.r.l.	✔	✘
	AS12859	BIT BV	✘	✔
	AS3255	Ukrainian Academic and Research Network	✔	✘
	AS9009	M247 Europe SRL	✔	✘

---

Downstreams

	ASN	Description	IPv4	IPv6
	AS20701	CZ.NIC, z.s.p.o.	✔	✔
	AS26710	ICANN	✔	✔
	AS29067	Hostmaster LLC	✘	✔
	AS52304	NIC Chile	✔	✘
	AS52234	NIC Chile	✔	✘
	AS61455	LACTLD - LATIN AMERICAN AND CARIBBEAN TLD ASSOCIATION	✔	✔

aut-num:        AS25192
as-name:        CZNIC-AS
org:            ORG-Cz1-RIPE
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT IMPORT
mp-import:      afi any.unicast from AS25192:AS-TRANSIT accept ANY
remarks:
remarks:        EXCHANGE POINTS IMPORT
mp-import:      afi any.unicast from AS25192:AS-IX accept ANY
remarks:
remarks:        CUSTOMERS IMPORT
mp-import:      afi any.unicast from AS25192:AS-CUSTOMERS accept PeerAS
remarks:        ----------------------------------------------------------------------
remarks:
remarks:        ----------------------------------------------------------------------
remarks:        TRANSIT EXPORT
mp-export:      afi any.unicast to AS25192:AS-TRANSIT announce AS-CZNIC-TRANSIT
remarks:
remarks:        EXCHANGE POINTS EXPORT
mp-export:      afi any.unicast to AS25192:AS-IX announce AS-CZNIC
remarks:
remarks:        CUSTOMERS EXPORT
mp-export:      afi any.unicast to AS25192:AS-CUSTOMERS announce ANY
remarks:        ----------------------------------------------------------------------
remarks:
mnt-by:         CZ-NIC-MNT
created:        2002-08-28T09:25:35Z
last-modified:  2017-11-15T09:19:53Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-Cz1-RIPE
org-name:       CZ.NIC, z.s.p.o.
country:        CZ
org-type:       LIR
address:        Dummy address for ORG-Cz1-RIPE
e-mail:         unread@ripe.net
mnt-ref:        CZ-NIC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZ-NIC-MNT
abuse-c:        CZ-RIPE
created:        2004-04-17T11:04:42Z
last-modified:  2020-12-16T13:27:07Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2025-04-13T03:24:59Z UTC

---

Member of the following AS-SETs

-	Member
RIPE	as24971:as-mai-nix-peer
RADB	as-hurricane
RADB	as38001:as-newmediaexpress
RIPE	as-ubnix-v6
RIPE	as42000:as-nixcz-peerings
LEVEL3	as-level3-origins-na
RIPE	as12570:as-customers
RADB	as-28513
RADB	as-icann-others
RIPE	as-transroute-spec
RIPE	as-ubnix-members
RIPE	as12570:as-nix-peers
RIPE	as-retn-actual-v4
RADB	as-29802-customers
LEVEL3	as-level3-origins-eu
RIPE	as6695:as-decix-fra-rs-v6
RIPE	as-dialtelecom
RIPE	as-cosmonova
RIPE	as-transcz
RADB	as-itxchile
RIPE	as-cznic-nix
RADB	as14259:as-customers
RADB	as-maxihost
RIPE	as-decix-services
RIPE	as-ubnix
RIPE	as-linx
RIPE	as-decix-services-v6
NTTCOM	as-amcl-bb
RADB	as-ufla-transcust
APNIC	as-netnod
RIPE	as-cznic
RIPE	as-cesnet-nix-peers
RADB	as-icann-others6
RIPE	as-manda-decix-peers-v4
APNIC	as38001:as-newmediaexpress
RIPE	as8251:as-nix-peerings
RIPE	as-retn-actual-v6
RIPE	as-cznic-transit
RIPE	as-43413_nt-nix
RADB	as-superloop-cust
RADB	as-kddcustomer2
APNIC	as-newmediaexpress
RADB	as-ctbc-customers117
RADB	as-hurricanev6
RIPE	as-cecomczcust-transit
RIPE	as-to2-nix-peer
RADB	as-ctbc-tools
RADB	as-nicbr-cust
RIPE	as-cznic-fenix
RIPE	as6695:as-decix-fra-connected
APNIC	as38001:as-newmediaexpress-cleanpipe
RADB	as-optus
RADB	as-telstra-testing-1
RIPE	as-netnod
RIPE	as6695:as-decix-fra-rs
RADB	as-newmediaexpress
RADB	as-itxbr1
ARIN	as-xo-b
RADB	as263237:as-customers
RIPE	as-manda-decix-peers-v6