AS Number
AS43037
AS Name
SEZNAM-CZ
Org Name
Seznam.cz, a.s.
Country
Czech
Registry

ripe

RegDate

N/A

Updated

2017-11-15T09:48:45Z

AS43037 Looking Glass
IPv4Prefixes

6

IPv6Prefixes

6

IPv4 NUMs

3,072

IPv6 NUMs(/64)

4,294,967,296

3,072 IPv4 Addresses
CIDR Description IP Num
77.75.72.0/23 Seznam.cz, a.s. 512
77.75.74.0/24 SEZNAM-CZ 256
77.75.75.0/24 SEZNAM-CZ 256
77.75.76.0/23 SEZNAM-CZ 512
77.75.78.0/23 SEZNAM-CZ 512
185.66.188.0/22 Seznam.cz, a.s. 1024
CIDR Description IP NUMs(prefix /64)
2a02:598::/32 Seznam.cz, a.s. 4294967296
2a02:598:2::/48 DC-Nagano 65536
2a02:598:a::/48 DC-Kokura 65536
2a02:598:b::/48 DC-Nagano-future 65536
2a02:598:3333::/48 DC-Kokura-DNS 65536
2a02:598:4444::/48 DC-Nagano-dns 65536
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS47147 AS-ANX - ANEXIA Internetdienstleistungs GmbH, AT Austria 1,536 196,608 IPv4 IPv4
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 94,464 354,874,032,128 IPv4 IPv4 IPv6 IPv6
AS209823 ENKI-AS - Enki Multimedia EURL, FR France 256 4,295,229,440 IPv4 IPv4 IPv6 IPv6
AS1267 ASN-WINDTRE - WIND TRE S.P.A., IT Italy 6,567,936 2,233,382,993,920 IPv6 IPv6
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2,155,520 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 1,280 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS17557 PKTELECOM-AS-PK - Pakistan Telecommuication company limited, PK Pakistan 3,856,728 4,295,032,832 IPv4 IPv4
AS25091 IP-MAX - IP-Max SA, CH Switzerland 14,848 68,719,607,808 IPv4 IPv4 IPv6 IPv6
AS559 SWITCH, CH Switzerland 2,184,704 176,093,790,208 IPv4 IPv4 IPv6 IPv6
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 12,800 111,669,739,520 IPv4 IPv4 IPv6 IPv6
AS12552 IPO-EU - GlobalConnect AB, SE Sweden 568,576 274,878,758,912 IPv4 IPv4 IPv6 IPv6
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 43,264 107,374,182,400 IPv4 IPv4 IPv6 IPv6
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 9,728 4,295,884,800 IPv4 IPv4
AS3786 LGDACOM - LG DACOM Corporation, KR Republic of Korea 8,744,192 12,784,369,664 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 520,704 282,631,699,169,280 IPv4 IPv4 IPv6 IPv6
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 45,824 42,949,804,032 IPv4 IPv4 IPv6 IPv6
AS16347 INHERENT - ADISTA SAS, FR France 233,472 386,547,056,640 IPv4 IPv4
AS34224 NETERRA-AS - Neterra Ltd., BG Bulgaria 40,704 4,294,967,296 IPv4 IPv4
AS38193 TWA-AS-AP - TRANSWORLD ASSOCIATES (PVT) LIMITED, PK Pakistan 25,344 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS47734 TELECOM-IT-SOLUTIONS-AS - Telecom IT Solutions SRL, RO Romania 256 65,536 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 0 0 IPv4 IPv4 IPv6 IPv6
AS5713 SAIX-NET - Telkom SA Ltd., ZA South Africa 1,989,888 17,596,481,077,248 IPv4 IPv4 IPv6 IPv6
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 66,816 107,407,736,832 IPv4 IPv4 IPv6 IPv6
AS30781 JAGUAR-AS - Free Pro SAS, FR France 97,024 133,144,051,712 IPv6 IPv6
AS58511 ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU Australia 23,552 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS49605 DTS-AS - Digital Telecommunication Services S.r.l., IT Italy 9,472 38,654,705,664 IPv4 IPv4
AS15547 NETPLUS - netplus.ch SA, CH Switzerland 134,144 42,949,672,960 IPv4 IPv4 IPv6 IPv6
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS200780 APPLIWAVE - Eurofiber France SAS, FR France 21,248 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS34927 iFog-GmbH - iFog GmbH, CH Switzerland 5,376 244,383,744 IPv6 IPv6
AS40994 Alwyzon - Hohl IT e.U., AT Austria 2,816 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 21,504 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS29208 QUANTCOM-AS - Quantcom, a.s., CZ Czech 254,976 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS35360 GARGUNET - Frederic Gargula, CH Switzerland 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 86,784 274,878,234,624 IPv4 IPv4 IPv6 IPv6
AS7195 EDGEUNO S.A.S, CO Colombia 31,232 4,276,158,464 IPv4 IPv4
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53,248 13,153,337,344 IPv4 IPv4 IPv6 IPv6
AS5610 O2-CZECH-REPUBLIC - O2 Czech Republic, a.s., CZ Czech 1,542,912 47,244,705,792 IPv4 IPv4 IPv6 IPv6
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15,872 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS35280 F5 - F5 Networks SARL, FR France 51,968 81,604,378,624 IPv4 IPv4 IPv6 IPv6
AS37468 ANGOLA-CABLES - Angola Cables, AO Angola 9,216 42,949,672,960 IPv4 IPv4 IPv6 IPv6
AS50877 AIRBEAM-AS - Airbeam S.r.l., IT Italy 6,144 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS58299 OPENFACTORY-AS - Openfactory GmbH, CH Switzerland 2,816 12,885,032,960 IPv4 IPv4
AS9002 RETN-AS - RETN Limited, GB United Kingdom 27,392 4,294,967,296 IPv6 IPv6
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,360 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS14840 BR.Digital Provider, BR Brazil 66,560 14,009,892,864 IPv4 IPv4 IPv6 IPv6
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S., CO Colombia 4,096 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS64289 MACARNE - Macarne LLC, US United States 7,168 1,078,460,416 IPv4 IPv4
AS132337 ANSPL-AS-AP - AXCLUSIVE PTE. LTD., SG Singapore 7,936 4,294,967,296 IPv6 IPv6
AS6695 DECIX-AS - DE-CIX Management GmbH, DE Germany 0 0 IPv4 IPv4 IPv6 IPv6
AS34019 HIVANE - Hivane Association, FR France 2,816 1,245,184 IPv4 IPv4 IPv6 IPv6
AS34177 CELESTE-AS - CELESTE SAS, FR France 192,768 42,949,672,960 IPv4 IPv4
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9,472 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS31510 IKB-AS - Innsbrucker Kommunalbetriebe AG, AT Austria 27,904 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS48362 TKSWF-AS - Stadtwerke Feldkirch, AT Austria 7,680 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS262589 SAMM TECNOLOGIA E TELECOMUNICACOES S.A, BR Brazil 228,608 34,363,342,848 IPv4 IPv4
AS13237 LAMBDANET-AS - euNetworks GmbH, DE Germany 572,416 111,669,149,696 IPv4 IPv4 IPv6 IPv6
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1,072,896 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS47692 NESSUS - Nessus GmbH, AT Austria 35,584 34,359,869,440 IPv4 IPv4 IPv6 IPv6
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0 IPv6 IPv6
AS398465 RACKDOG-LLC - Rackdog, LLC, US United States 28,416 103,347,650,560 IPv6 IPv6
AS28716 RETELIT-AS - Retelit Digital Services S.p.A., IT Italy 47,616 107,374,182,400 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS200600 SEZNAM-CZ-DC - Seznam.cz datova centra, s.r.o., CZ Czech 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 91.210.16.194 2001:7f8:14::36:1 100 Gbps 2017-03-23 09:21:32
Czech NIX.CZ - Neutral Internet Exchange in the Czech Republic 91.210.16.195 2001:7f8:14::36:2 100 Gbps 2017-03-23 09:21:32
Czech NIX.CZ FENIX 194.50.100.194 2001:7f8:14:5ec::36:1 100 Gbps 2020-02-19 04:07:54
Czech NIX.CZ FENIX 194.50.100.195 2001:7f8:14:5ec::36:2 100 Gbps 2020-02-19 04:07:54

Private Peering Facilities

Country/Region Name City Website Updated
IP Address Domain NUMs Domains
77.75.72.3 3 ask.seznam.cz
77.75.72.4 1 flirt.cz
77.75.72.5 1 email-reg.seznam.cz
77.75.72.9 1 kupi-agent.seznam.cz
77.75.72.12 4 sw-nuts.com
77.75.72.26 1 fulltextrobot-test-77-75-72-26.seznam.cz
77.75.72.48 2 pravoslavnacirkev.cz
77.75.72.60 1 fulltextdns-77-75-72-60.seznam.cz
77.75.72.61 1 fulltextdns-77-75-72-61.seznam.cz
77.75.72.62 1 fulltextdns-77-75-72-62.seznam.cz
as-block:       AS42961 - AS43073
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:        2023-12-11T15:09:58Z
last-modified:  2023-12-11T15:09:58Z
source:         RIPE



aut-num:        AS43037
as-name:        SEZNAM-CZ
org:            ORG-Sa508-RIPE
import:         from AS9148 accept ANY
import:         from AS5610 accept ANY
export:         to AS9148 announce AS43037
export:         to AS5610 announce AS43037
export:         to AS5610 announce AS200600
admin-c:        SZN5-RIPE
tech-c:         SZN5-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SEZNAM-MNT
created:        2007-05-29T08:00:03Z
last-modified:  2017-11-15T09:48:45Z
source:         RIPE

organisation:   ORG-SA508-RIPE
org-name:       Seznam.cz, a.s.
country:        CZ
org-type:       LIR
address:        Radlicka 3294/10
address:        15000
address:        Prague 5
address:        CZECH REPUBLIC
phone:          +420234694111
fax-no:         +420234694115
e-mail:         [email protected]
admin-c:        PZ172-RIPE
admin-c:        FEIX-RIPE
abuse-c:        AD10910-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        SEZNAM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         SEZNAM-MNT
created:        2007-05-01T10:11:05Z
last-modified:  2020-12-16T12:39:31Z
source:         RIPE

role:           Seznam.cz IT department
address:        Radlicka 3294/10 150 00 Prague 5 Czech Republic
e-mail:         [email protected]
phone:          +420 602 126 570
abuse-mailbox:  [email protected]
admin-c:        PZ172-RIPE
tech-c:         SZN11-RIPE
tech-c:         SZN10-RIPE
nic-hdl:        SZN5-RIPE
mnt-by:         SEZNAM-MNT
created:        2007-05-06T15:50:27Z
last-modified:  2015-07-03T13:19:00Z
source:         RIPE