Autonomous System details

AS43542

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

Czechia

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

Field Value
Country Czechia
Website optonet.cz
Hosted domains 2,432
IPv4 addresses 8,192
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type ISP
Registry ripe
Allocated 18 years ago on Aug 20, 2007
Updated 2 years ago on Jun 07, 2024

IP Ranges

Netblock Company Num of IPs
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

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                                                ASHandle:       AS43542
                                                OrgID:          AS43542
                                                ASName:         AS43542
                                                ASNumber:       AS43542
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 2,432 domain names hosted across 56 IP addresses on this ASN.

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IP Address Domain Domains on this IP
78.156.158.199 ██████████ 1,031
78.156.158.200 ██████████ 391
78.156.158.194 ██████████ 375
78.156.158.75 █████████ 229
78.156.156.10 ██████████ 124
78.156.158.91 ██████████ 85
78.156.158.74 ██████████ 71
78.156.143.203 ██████████ 38
78.156.158.152 ██████████ 18
78.156.158.72 █████████ 17

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Peers

There are 33 peers for this ASN.

Peers Name
AS14840 BR.Digital Telecom
AS16019 Vodafone Czech Republic a.s.
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150 SIACOM JSC
AS202979 NGA Services, spol. s r.o.
AS207945 CNI Group s.r.o.
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS22356 Durand do Brasil Ltda
AS24482 SG.GS
AS263444 Open X Tecnologia Ltda
AS29504 Freenet Liberec, z.s.
AS32590 Valve Corporation
AS36236 NetActuate, Inc
AS39120 Convergenze S.p.A.
AS40994 Hohl IT e.U.
AS43733 Viva Armenia CJSC
AS44104 LCJ Invest, a.s.
AS44306 OMONIA d.o.o.
AS4455 IX Reach Ltd
AS47200 NIX.CZ z.s.p.o.
AS48091 Kraj Vysocina
AS49544 i3D.net B.V
AS51184 Fonira Telekom GmbH
AS53062 ALT | GRUPO BRASIL TECPAR
AS57463 NetIX Communications JSC
AS6204 INTERKVM HOST SRL
AS6663 Euroweb Romania S.R.L.
AS6855 Slovak Telekom, a.s.
AS6881 NIX.CZ z.s.p.o.
AS6939 Hurricane Electric LLC
AS8218 Zayo Infrastructure France SA
AS9498 BHARTI Airtel Ltd.
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Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS16019 Vodafone Czech Republic a.s.
AS6855 Slovak Telekom, a.s.
AS6939 Hurricane Electric LLC
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Downstreams

There are 4 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
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Pingable IPs

19 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
78.156.158.164 AS43542 OptoNet Communication, spol. s.r.o. 1.81ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.85ms from Prague, CZ
78.156.155.13 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
2a00:d940:3:2000::1 AS43542 OptoNet Communication, spol. s.r.o. 2.95ms from Prague, CZ
78.156.150.121 AS43542 OptoNet Communication, spol. s.r.o. 2.69ms from Prague, CZ
78.156.133.218 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.157.73 AS43542 OptoNet Communication, spol. s.r.o. 1.82ms from Prague, CZ
78.156.143.229 AS43542 OptoNet Communication, spol. s.r.o. 1.90ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 2.03ms from Prague, CZ
2a00:d940:0:c::2 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 2.44ms from Prague, CZ
78.156.156.251 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.128.17 AS43542 OptoNet Communication, spol. s.r.o. 1.82ms from Prague, CZ
78.156.137.109 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.147.236 AS43542 OptoNet Communication, spol. s.r.o. 2.00ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.32ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 1.97ms from Prague, CZ
78.156.135.93 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
78.156.144.1 AS43542 OptoNet Communication, spol. s.r.o. 2.67ms from Prague, CZ

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
3.212.110.102 AS14618 Amazon.com, Inc. 0.54ms from Ashburn, US
168.29.159.6 AS3479 Board of Regents of the University System of Georgia 1.48ms from Atlanta, US
117.193.237.150 AS9829 National Internet Backbone 8.63ms from Chennai, IN
101.185.197.134 AS1221 Telstra Limited 3.14ms from Perth, AU
76.132.56.38 AS7922 Comcast Cable Communications, LLC 2.47ms from San Jose, US
210.91.134.102 AS4766 Korea Telecom 4.36ms from Seoul, KR
118.34.54.6 AS4766 Korea Telecom 4.92ms from Seoul, KR
49.235.230.118 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.29ms from Shanghai, CN
32.117.136.102 AS2687 AT&T Enterprises, LLC 1.22ms from Taipei, TW
4.216.73.214 AS8075 Microsoft Corporation 0.18ms from Tokyo, JP
177.223.46.6 AS266539 LINQ TELECOMUNICACOES 7.15ms from Uberlandia, BR
100.49.197.246 AS14618 Amazon.com, Inc. 0.70ms from Ashburn, US
138.121.187.6 AS263043 WIFF Telecom Eireli 4.89ms from Brasilia, BR
50.195.207.230 AS7922 Comcast Cable Communications, LLC 11.05ms from Chicago, US
12.247.76.102 AS7018 AT&T Enterprises, LLC 7.66ms from Dallas, US
212.30.225.70 AS44515 Advania Island ehf 0.32ms from Hafnarfjoerdur, IS
115.29.207.166 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.88ms from Hangzhou, CN
112.197.135.198 AS45543 SaiGon Tourist cable Televition Company 12.63ms from Ho Chi Minh City, VN
2.3.126.246 AS3215 Orange S.A. 18.47ms from Lyon, FR
85.32.207.38 AS3269 Telecom Italia S.p.A. 7.78ms from Milan, IT
14.132.6.230 AS18126 Chubu Telecommunications Company, Inc. 5.13ms from Osaka, JP
153.212.179.38 AS4713 NTT DOCOMO BUSINESS,Inc. 11.27ms from Osaka, JP
67.23.206.6 AS36687 WiLine Networks Inc. 0.54ms from Portland, US
87.10.157.198 AS3269 Telecom Italia S.p.A. 2.13ms from Rome, IT
96.44.223.134 AS21724 GOCO TECHNOLOGY LIMITED PARTNERSHIP 0.40ms from Toronto, CA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f3 78.156.144.165
traceroute to 78.156.144.165 (78.156.144.165): 64 hops max, 52 byte packets
3 [] 91.210.17.48 2.312 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Prague, CZ
On

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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