AS number details

AS43542

OptoNet Communication, spol. s.r.o.  ·  optonet.cz

  • bittorrent

AS43542 – OptoNet Communication, spol. s.r.o.

Field Value
Country Czechia
Website optonet.cz
Hosted domains 2,566
Number of IPv4 9,216
Number of IPv6 79,228,162,514,264,337,593,543,950,336
ASN type ISP
Registry ripe
Allocated 16 years ago on Aug 20, 2007
Updated 2 years ago on Jun 27, 2022
Netblock Company Num of IPs
185.85.92.0/22 OptoNet Communication, spol. s.r.o. 1,024
78.156.128.0/19 OptoNet Communication, spol. s.r.o. 8,192
Netblock Company
2a00:d940::/32 OptoNet Communication, spol. s.r.o.
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WHOIS Details

aut-num:        AS43542
as-name:        OptoNet-AS
org:            ORG-OCLS3-RIPE
remarks:        ======== TRANSIT UPSTREAM ========
remarks:        -- VODAFONE-CZ --
import:         from AS16019 accept any
export:         to AS16019 announce AS-OPTONET-TRANSIT
remarks:        -- COGENT --
import:         from AS174 accept any
export:         to AS174 announce AS-OPTONET-TRANSIT
remarks:        ======== IXs peers ========
remarks:        -- NIX.CZ ROUTESERVERS --
import:         from AS47200 accept ANY
export:         to AS47200 announce AS-OPTONET-TRANSIT
remarks:        ======== TRANSIT CUSTOMERS ========
remarks:        -- Kraj Vysocina --
import:         from AS48091 accept AS48091
export:         to AS48091 announce any
remarks:        -- LCJ s.r.o. --
import:         from AS44104 accept AS44104
export:         to AS44104 announce any
remarks:        -- StaMPi, spol. s r.o. --
import:         from AS57288 accept AS57288
export:         to AS57288 announce any
remarks:        -- NGA Services, spol. s r.o. --
import:         from AS202979 accept AS202979 AS203365
export:         to AS202979 announce any
remarks:        -- CNI Group s.r.o. --
import:         from AS207945 accept AS207945
export:         to AS207945 announce any
admin-c:        TJ1042-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
tech-c:         TJ1042-RIPE
notify:         info@optonet.cz
mnt-by:         MNT-OPTONET
created:        2007-08-20T08:25:37Z
last-modified:  2022-06-27T06:18:32Z
source:         RIPE
abuse-email:    abuse@optonet.cz
abuse-c:        AOC17-RIPE
abuse-org:      ORG-OCLS3-RIPE

organisation:   ORG-OCLS3-RIPE
org-name:       OptoNet Communication, spol. s.r.o.
country:        CZ
org-type:       LIR
address:        Cerveny Kriz 318
address:        586 01
address:        Jihlava
address:        CZECH REPUBLIC
phone:          +420564040152
fax-no:         +420564040134
admin-c:        TJ1042-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-OPTONET
mnt-ref:        MNT-OPTONET_JT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-OPTONET
e-mail:         prosecky@optonet.cz
abuse-c:        AOC17-RIPE
created:        2006-09-25T15:28:01Z
last-modified:  2022-12-02T13:59:08Z
source:         RIPE

role:           ABUSE-C OptoNet Communication
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 01 Jihlava
address:        Czech republic
e-mail:         info@optonet.cz
abuse-mailbox:  abuse@optonet.cz
nic-hdl:        AOC17-RIPE
mnt-by:         MNT-OPTONET
created:        2013-05-27T10:58:37Z
last-modified:  2013-05-27T11:10:08Z
source:         RIPE

person:         Tichy Josef
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 02 Jihlava
address:        Czech republic
phone:          +420564040133
e-mail:         tichy@optonet.cz
nic-hdl:        TJ1042-RIPE
mnt-by:         MNT-OPTONET_JT
created:        2007-08-06T07:09:45Z
last-modified:  2017-10-30T21:56:13Z
source:         RIPE

role:           ABUSE-C OptoNet Communication
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 01 Jihlava
address:        Czech republic
e-mail:         info@optonet.cz
abuse-mailbox:  abuse@optonet.cz
nic-hdl:        AOC17-RIPE
mnt-by:         MNT-OPTONET
created:        2013-05-27T10:58:37Z
last-modified:  2013-05-27T11:10:08Z
source:         RIPE

person:         Tichy Josef
address:        OptoNet Communication, spol. s r.o.
address:        Cerveny Kriz 250
address:        568 02 Jihlava
address:        Czech republic
phone:          +420564040133
e-mail:         tichy@optonet.cz
nic-hdl:        TJ1042-RIPE
mnt-by:         MNT-OPTONET_JT
created:        2007-08-06T07:09:45Z
last-modified:  2017-10-30T21:56:13Z
source:         RIPE
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Hosted Domains

There are 2,566 domain names hosted across 54 IP addresses on this ASN.

IP Address Domain Domains on this IP
78.156.158.199 bohdanec.cz 1,161
78.156.158.194 neratovice.cz 516
78.156.158.75 martin.sk 223
78.156.158.200 svobodnehermanice.cz 111
78.156.156.10 pohreb-pegas.cz 93
78.156.158.152 zsbrezi.cz 83
78.156.158.74 lekonka.cz 82
78.156.158.91 mesto-most.cz 69
78.156.156.50 sousviderecepty.cz 55
78.156.143.203 eliskafialova.cz 32
78.156.158.72 kulturafrenstat.cz 29
78.156.158.93 kladenskevanoce.cz 21
78.156.158.71 frydlantno.cz 17
78.156.135.74 radiojournal.cz 17
78.156.158.170 elbooker.eu 13
78.156.158.83 dslamac.sk 13
78.156.157.57 potapecskesvitilny.cz 11
78.156.157.3 nakivo.cz 11
78.156.158.197 jihlava-city.cz 11
78.156.158.73 klinikatornero.cz 11
78.156.156.53 ebooky.cz 10
78.156.149.7 zoojihlava.cz 8
78.156.128.12 optomedia.cz 7
78.156.156.43 optonet-dcv.com 7
78.156.158.153 gssmikulov.cz 5
78.156.158.81 jednodenkausti.cz 4
78.156.140.148 pojistise.eu 3
78.156.156.66 poq.cz 3
78.156.140.84 erusoft.cz 3
78.156.140.195 bluepen.cz 3
78.156.158.171 hrajeme-si.cz 2
78.156.158.163 ap-amore.sk 2
78.156.158.82 rencin.cz 2
78.156.147.18 magistrat-jihlava.cz 2
78.156.140.65 lepart.cz 2
78.156.158.235 servismobilu.com 2
78.156.156.78 vsesimy.cz 2
78.156.156.13 nodee.cz 2
78.156.136.125 g4tech.cz 2
78.156.158.198 lanskroun.eu 2
78.156.156.4 obradni-sine.online 2
78.156.157.77 acdohled.cz 1
78.156.140.132 ceskydisk.cz 1
78.156.135.248 reklamni-dratene-stojany.cz 1
78.156.135.114 hojkov.eu 1
78.156.143.158 vw-modifi.eu 1
78.156.133.10 vyklicky.net 1
78.156.135.252 paradakromeriz.cz 1
78.156.140.54 pokys.eu 1
78.156.158.211 commutersubsequentlymade.com 1

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Useful for Cybersecurity

Peers

There are 27 peers for this ASN.

Peers Name
AS14840 BR.Digital Provider
AS16019 Vodafone Czech Republic a.s.
AS174 Cogent Communications
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS202979 NGA Services, spol. s r.o.
AS207945 CNI Group s.r.o.
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482 SG.GS
AS2852 CESNET z.s.p.o.
AS28972 M-SOFT, spol. s r.o.
AS29049 Delta Telecom Ltd
AS29504 Freenet Liberec, z.s.
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS41047 Bart Vrancken trading as MLaB
AS44104 LCJ Invest, a.s.
AS4455 IX Reach Ltd
AS48091 Kraj Vysocina
AS49544 i3D.net B.V
AS51185 Onecom Global Communications LTD
AS57288 StaMPi, spol. s r.o.
AS57463 NetIX Communications JSC
AS6881 NIX.CZ z.s.p.o.
AS6939 Hurricane Electric LLC
AS8218 Zayo Infrastructure France SA
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS16019 Vodafone Czech Republic a.s.
AS174 Cogent Communications
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Downstreams

There are 5 downstreams for this ASN.

Downstreams Name
AS202979 NGA Services, spol. s r.o.
AS207945 CNI Group s.r.o.
AS44104 LCJ Invest, a.s.
AS48091 Kraj Vysocina
AS57288 StaMPi, spol. s r.o.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS43542 at robtex.

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