ASN Lookup Tool

CETIN a.s. cetin.cz CZ CZ 11 Routes

AS Data

AS28725

AS28725CETIN a.s.

AS Number 28725
AS Name CETIN-AS
Organization CETIN a.s. (org-epss1-ripe)
Country CZ
Website cetin.cz
Number of IPv4 Routes 9
Number of IPv6 Routes 2
ASN type ISP
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2003-02-10

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Use ASN data for AS28725 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
136.238.226.0/24 256
194.147.12.0/22 1024
85.163.0.0/16 65536
85.162.0.0/16 65536
80.78.150.0/24 256
2a0b:bb40::/32 ~79×10²⁷
212.96.180.0/24 256
194.50.64.0/22 1024
185.218.92.0/23 512
85.162.0.0/15 131072
2a07:1f40::/29 ~634×10²⁷

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS28699 - AS28912'

as-block:       AS28699 - AS28912
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:        2018-11-22T15:27:31Z
last-modified:  2018-11-22T15:27:31Z
source:         RIPE

% Information related to 'AS28725'

% Abuse contact for 'AS28725' is 'abuse@cetin.cz'

aut-num:        AS28725
as-name:        CETIN-AS
org:            ORG-EPss1-RIPE
admin-c:        CTN100-RIPE
tech-c:         CTN100-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CETIN-MNT
created:        2003-02-10T09:01:35Z
last-modified:  2020-03-24T14:41:10Z
source:         RIPE
export-via:     AS6777 to AS-ANY announce AS-CETIN
import-via:     AS6777 from AS-ANY accept ANY

organisation:   ORG-EPss1-RIPE
org-name:       CETIN a.s.
country:        CZ
reg-nr:         04084063
org-type:       LIR
address:        Ceskomoravska 2510/19
address:        190 00
address:        Prague 9
address:        CZECH REPUBLIC
phone:          +420 238 461 111
admin-c:        VP999999-RIPE
admin-c:        MM999999-RIPE
abuse-c:        CTN100-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CETIN-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CETIN-MNT
created:        2004-04-17T11:04:20Z
last-modified:  2026-05-13T07:22:19Z
source:         RIPE # Filtered

role:           CETIN hostmaster
org:            ORG-EPss1-RIPE
address:        CETIN a.s.
address:        Ceskomoravska 2510/19
address:        190 00 Praha 9
address:        Czech Republic
nic-hdl:        CTN100-RIPE
mnt-by:         CETIN-MNT
abuse-mailbox:  abuse@cetin.cz
phone:          +420 238 461 111
created:        2015-07-21T07:05:48Z
last-modified:  2020-01-14T08:41:43Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.123 (DEXTER)

Parsed Whois Response

Peers

AS Number Description Country
AS213559 MyOffice, s.r.o. CZ
AS201265 ANAFRA a.s. CZ
AS206177 SitePark s.r.o. CZ
AS40994 Hohl IT e.U. AT
AS28792 Public Internet Ltd GB
AS51907 Kanton Zug CH
AS58057 Securebit AG CH
AS25220 equada network GmbH DE
AS39249 Netassist International EOOD BG
AS198346 NETFORMS s.r.o. CZ
AS13030 Init7 (Switzerland) Ltd. CH
AS38880 Micron21 Datacentre Pty Ltd AU
AS14537 Continent 8 LLC US
AS198150 SIACOM JSC GE
AS15943 wilhelm.tel GmbH DE
AS45352 IP ServerOne Solutions Sdn Bhd MY
AS56655 Gigahost AS NO
AS37468 Angola Cables AO
AS60144 3W Infra B.V. NL
AS199524 G-Core Labs S.A. LU
AS49127 Asimo Networks B.V. NL
AS29504 Freenet Liberec, z.s. CZ
AS50673 Serverius Holding B.V. NL
AS53062 GGNET TELECOMUNICACOES LTDA BR
AS12859 BIT BV NL
AS206735 Novelcomm LP GR
AS3216 PJSC "Vimpelcom" RU
AS13237 euNetworks GmbH DE
AS42093 InterRacks B.V. NL
AS51420 cyrilek.net z.s. CZ
AS21497 PrJSC "VF UKRAINE" UA
AS32590 Valve Corporation US
AS12735 TurkNet Iletisim Hizmetleri A.S. TR
AS559 SWITCH CH
AS51382 Ing. Leos Janouch CZ
AS51873 Arcade Solutions AG CH
AS8758 Iway AG CH
AS8801 Rocket Fibre Ltd GB
AS20647 IPB Internet Provider in Berlin GmbH DE
AS25091 IP Max SA ZZ
AS1836 green.ch AG CH
AS1031 PEER 1031 LLC US
AS1828 Unitas Global US
AS1299 Arelion Sweden AB SE
AS999 CORIX NETWORKS US
AS4849 S3 Company Ltd BG
AS37497 Network Platforms (PTY) LTD ZA
AS264479 Turbozone Internet BR
AS38158 PT. Cyberindo Aditama ID
AS209947 M-wifi internet s.r.o. CZ
AS142271 EWS DS Networks Inc PH
AS12741 Netia SA PL
AS215085 Maik Polman trading as PixelHosting NL
AS31027 GlobalConnect A/S DK
AS209823 Enki Multimedia EURL FR
AS8298 IPng Networks GmbH CH
AS14630 Invesco Group Services, Inc. US
AS553 BelWue Koordination DE
AS6777 Amsterdam Internet Exchange B.V. NL
AS204208 Peravix Group LTD GB

Upstreams

AS Number Description Country
AS7195 EDGEUNO S.A.S CO
AS39249 Netassist International EOOD BG
AS39351 31173 Services AB SE
AS6939 Hurricane Electric LLC US
AS6204 ZET.NET IP Transit RO
AS8359 MTS PJSC RU
AS31230 Slovak University of Technology in Bratislava SK
AS22356 Durand do Brasil Ltda BR
AS4230 CLARO S.A. BR
AS56655 Gigahost AS NO
AS37468 Angola Cables AO
AS20764 CJSC RASCOM RU
AS15802 Emirates Integrated Telecommunications Company PJSC AE
AS37497 Network Platforms PTY LTD ZA
AS47147 ANEXIA Internetdienstleistungs GmbH AT
AS50673 Serverius Holding B.V. NL
AS6461 Zayo Bandwidth US
AS24889 Monzoon Networks AG CH
AS3216 PJSC Vimpelcom RU
AS30781 Free Pro SAS FR
AS14840 BR.Digital Telecom BR
AS29632 Netassist International EOOD BG
AS24961 WIIT AG DE
AS15935 ha vel internet s.r.o. CZ
AS8758 Iway AG CH
AS12779 IT.Gate S.p.A. IT
AS4601 Antonios A. Chariton GR
AS35625 Eurofiber France SAS FR
AS25091 IP Max SA ZZ
AS212024 Marc Schmitt FR
AS1836 green.ch AG CH
AS35046 OMEGA plus Chrudim s.r.o. CZ
AS1031 PEER 1031 LLC US
AS1299 Arelion Sweden AB SE
AS20485 Joint Stock Company TransTeleCom RU
AS37282 Main one Cable Company Nigeria Limited NG
AS8283 Netwerkvereniging Coloclue NL
AS34549 meerfarbig GmbH & Co. KG DE
AS28716 Retelit Digital Services S.p.A. IT
AS39686 Eurofiber Nederland BV NL
AS34927 iFog GmbH CH
AS1764 Next Layer Telekommunikationsdienstleistungs und Beratungs GmbH AT
AS6695 DE CIX Management GmbH DE
AS8298 IPng Networks GmbH CH
AS48362 Stadtwerke Feldkirch AT
AS7713 Telekomunikasi Indonesia PT ID
AS6663 Euroweb Romania S.R.L. RO
AS33891 Core Backbone GmbH DE
AS205103 Telegraph42 Management GmbH DE
AS34019 Hivane Association FR
AS34177 Celeste SAS FR
AS6777 Amsterdam Internet Exchange B.V. NL
AS60171 AFR IX TELECOM S.A. ES
AS4455 IX Reach Ltd GB
AS8218 operated Upstreamnet gmbh FR
AS50629 LWLcom GmbH DE
AS1103 SURF B.V. NL
AS37100 SEACOM Limited MU
AS39120 Convergenze S.p.A. IT
AS9002 RETN Limited GB

Downstreams

AS Number Description Country
AS213559 MyOffice, s.r.o. CZ
AS201265 ANAFRA a.s. CZ
AS19637 Avago Technologies U.S. Inc. US
AS206177 SitePark s.r.o. CZ
AS198346 NETFORMS s.r.o. CZ
AS52029 Palanet s.r.o. CZ
AS197565 NHK Solutions s.r.o. CZ
AS204351 NAM system, a.s. CZ
AS211826 Istqrar for Servers Services Ltd JO
AS57288 StaMPi, spol. s r.o. CZ

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Frequently Asked Questions

ASN AS28725 is an Autonomous System Number used to identify a network for BGP internet routing.
AS28725 is listed under CETIN a.s..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.