Summary

NetName
OrgName
CZ.NIC, z.s.p.o.
CIDR
RIR

RIPE

Country
Status

Abuse

abuse@nic.cz

Contact

hostmaster@nic.cz

RegDate

Updated

Routing

AS Desc Country IPv4 NUMs IPv6 NUMs
AS559 Switch, CH Switzerland 2184960 176093790208
AS999 CORIX-999 - CORIX NETWORKS, US United States 70144 4295032834
AS1000 LINK-AMERICAN - LINK AMERICAN, US United States 256 0
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 409088 77326843904
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 84736 236223463424
AS1916 Rede Nacional de Ensino e Pesquisa, BR Brazil 660736 268435712
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 3072 34359738368
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2155520 68719476736
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1747200 51808436224
AS6939 HURRICANE - Hurricane Electric LLC, US United States 457728 282627370713088
AS7195 EDGEUNO S.A.S, CO Colombia 32000 4274061312
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47104 12884967424
AS12552 GlobalConnect-AS12552 - GlobalConnect AB, SE Sweden 559872 210454380544
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 46848 42949804032
AS13058 serve-u-AS - serve-u - Buchholz und Suenderhauf GbR, DE Germany 2048 34359738368
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 65536 12884901888
AS14840 BR.Digital Telecom, BR Brazil 72960 14010613760
AS16876 ICANN-DC - ICANN, US United States 2048 196608
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9472 4294967296
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20992 4294967296
AS24940 HETZNER-AS - Hetzner Online GmbH, DE Germany 3174400 77309476864
AS25091 IP-Max - IP-Max SA, CH Switzerland 14848 68719607808
AS25248 BlueTone-AS - RADIOKOMUNIKACE a.s., CZ Czech 106752 4295032832
AS30844 LIQUID-AS - Liquid Telecommunications Ltd, GB United Kingdom 371200 38654705664
AS31510 IKB-AS - Innsbrucker Kommunalbetriebe AG, AT Austria 27904 4294967296
AS32590 VALVE-CORPORATION - Valve Corporation, US United States 13312 2228224
AS34019 HIVANE - Hivane Association, FR France 2816 1245184
AS35280 F5 - F5 Networks SARL, FR France 55296 81604378624
AS35360 GARGUNET - Frederic Gargula, CH Switzerland 1024 34359738368
AS35625 EUROFIBER-FRANCE - Eurofiber France SAS, FR France 31488 103095992320
AS37271 Workonline - Workonline Communications(Pty) Ltd, ZA South Africa 9216 4294967296
AS37474 JINX - ISPA SA, ZA South Africa 1536 65536
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 14592 12886081536
AS40994 Alwyzon - Hohl IT e.U., AT Austria 6144 38654705664
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7168 68719476736
AS47692 NESSUS - Nessus GmbH, AT Austria 37632 34359869440
AS48362 TKSWF-AS - Stadtwerke Feldkirch, AT Austria 7936 4294967296
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 13824 111669149696
AS52075 WIFIRST - Wifirst S.A.S., FR France 132352 34359738368
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S., CO Colombia 4096 8589934592
AS53062 GGNET TELECOMUNICACOES LTDA, BR Brazil 28160 17196711936
AS53202 Acesso10 Telecom, BR Brazil 8192 4294967296
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1280 34359738368
AS61573 IP TELECOM, BR Brazil 1024 4294967296
AS64049 RJIPL-SG - Reliance Jio Infocomm Pte.Ltd, SG Singapore 2048 0
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 123392 77422788610
AS199524 GCORE - G-Core Labs S.A., LU Luxembourg 128768 118226945
AS209823 ENKI-AS - Enki Multimedia EURL, FR France 768 4295360512
AS262427 Invista Net Provedor de Acesso Ltda, BR Brazil 8192 4294967296
AS262462 Aranet Play, BR Brazil 14336 4294967296
AS266213 PLANETCLICK TELECOMUNICACOES LTDA, BR Brazil 1536 4294967296
AS267613 ELETRONET S.A., BR Brazil 1024 4294967296
AS271253 LINK BRASIL TELECOMUNICACOES LTDA, BR Brazil 4096 655097865
AS272403 RAFAEL RIGOBERTO LOPEZ OROZCO, MX Mexico 3072 4294967296

Whois

inet6num:       2001:148f:fffb::/48
netname:        F-NS-NIC-CZ
descr:          F-NS-NIC-CZ Second Anycast Cloud
org:            ORG-Cz1-RIPE
org-name:       CZ.NIC, z.s.p.o.
country:        CZ
abuse-c:        CZ-RIPE
abuse-mailbox:  abuse@nic.cz
admin-c:        CZ-RIPE
tech-c:         CZ-RIPE
status:         ASSIGNED
mnt-by:         CZ-NIC-MNT
created:        2022-11-10T12:37:54Z
last-modified:  2022-11-10T12:37:54Z
source:         RIPE

role:           Top level domain .CZ Operations
address:        CZ.NIC, z.s.p.o.
address:        Milesovska 5
address:        Praha 3
address:        130 00
address:        The Czech Republic
phone:          +420 222 745 111
fax-no:         +420 222 745 112
e-mail:         hostmaster@nic.cz
abuse-mailbox:  abuse@nic.cz
admin-c:        OF156-RIPE
tech-c:         MP12962-RIPE
tech-c:         JARA
nic-hdl:        CZ-RIPE
notify:         ntf@nic.cz
mnt-by:         CZ-NIC-MNT
created:        2003-05-16T20:14:31Z
last-modified:  2025-10-10T09:03:19Z
source:         RIPE

route6:         2001:148f:fffb::/48
descr:          Second CZ Anycast
origin:         AS200070
org:            ORG-Cz1-RIPE
mnt-by:         CZ-NIC-MNT
created:        2022-11-10T12:39:09Z
last-modified:  2022-11-10T12:39:09Z
source:         RIPE

organisation:   ORG-Cz1-RIPE
org-name:       CZ.NIC, z.s.p.o.
country:        CZ
reg-nr:         67985726
org-type:       LIR
address:        Milesovska 5
address:        13000
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420222745111
fax-no:         +420222745112
e-mail:         cto@nic.cz
abuse-mailbox:  abuse@nic.cz
admin-c:        MP12962-RIPE
abuse-mailbox:  abuse@nic.cz
admin-c:        JARA
abuse-mailbox:  abuse@nic.cz
admin-c:        OF156-RIPE
mnt-ref:        CZ-NIC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
notify:         ntf@nic.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZ-NIC-MNT
abuse-c:        CZ-RIPE
created:        2004-04-17T11:04:42Z
last-modified:  2026-05-13T07:30:28Z
source:         RIPE

route6:         2001:148f:fffb::/48
descr:          Second CZ Anycast
origin:         AS25192
org:            ORG-Cz1-RIPE
mnt-by:         CZ-NIC-MNT
created:        2022-11-10T12:40:25Z
last-modified:  2022-11-10T12:40:25Z
source:         RIPE

organisation:   ORG-Cz1-RIPE
org-name:       CZ.NIC, z.s.p.o.
country:        CZ
reg-nr:         67985726
org-type:       LIR
address:        Milesovska 5
address:        13000
address:        Praha 3
address:        CZECH REPUBLIC
phone:          +420222745111
fax-no:         +420222745112
e-mail:         cto@nic.cz
abuse-mailbox:  abuse@nic.cz
admin-c:        MP12962-RIPE
abuse-mailbox:  abuse@nic.cz
admin-c:        JARA
abuse-mailbox:  abuse@nic.cz
admin-c:        OF156-RIPE
mnt-ref:        CZ-NIC-MNT
mnt-ref:        RIPE-NCC-HM-MNT
notify:         ntf@nic.cz
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CZ-NIC-MNT
abuse-c:        CZ-RIPE
created:        2004-04-17T11:04:42Z
last-modified:  2026-05-13T07:30:28Z
source:         RIPE

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