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 2,424
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 2,424 domain names hosted across 58 IP addresses on this ASN.

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IP Address Domain Domains on this IP
78.156.158.199 ██████████ 1,014
78.156.158.200 ██████████ 402
78.156.158.194 ██████████ 371
78.156.158.75 █████████ 228
78.156.156.10 ██████████ 125
78.156.158.91 ██████████ 85
78.156.158.74 ██████████ 71
78.156.143.203 ██████████ 37
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
78.156.155.66 AS43542 OptoNet Communication, spol. s.r.o. 1.90ms from Prague, CZ
78.156.133.109 AS43542 OptoNet Communication, spol. s.r.o. 1.79ms from Prague, CZ
78.156.157.73 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.30ms from Prague, CZ
78.156.135.17 AS43542 OptoNet Communication, spol. s.r.o. 1.92ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 1.98ms from Prague, CZ
2a00:d940:3:2000::1 AS43542 OptoNet Communication, spol. s.r.o. 2.98ms from Prague, CZ
78.156.156.251 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.150.121 AS43542 OptoNet Communication, spol. s.r.o. 2.71ms from Prague, CZ
78.156.128.83 AS43542 OptoNet Communication, spol. s.r.o. 1.81ms from Prague, CZ
78.156.144.20 AS43542 OptoNet Communication, spol. s.r.o. 2.66ms from Prague, CZ
78.156.143.94 AS43542 OptoNet Communication, spol. s.r.o. 1.90ms from Prague, CZ
78.156.147.236 AS43542 OptoNet Communication, spol. s.r.o. 2.02ms from Prague, CZ
78.156.158.164 AS43542 OptoNet Communication, spol. s.r.o. 1.81ms from Prague, CZ
2a00:d940:0:c::2 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms from Prague, CZ
78.156.137.125 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 2.69ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.83ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.01ms 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
20.115.10.22 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
103.155.243.6 AS4768 One New Zealand Group Limited 0.60ms from Auckland, NZ
200.0.40.102 AS61889 BR.Digital Telecom 3.27ms from Brasilia, BR
98.32.36.6 AS7922 Comcast Cable Communications, LLC 11.37ms from Denver, US
123.156.126.102 AS4837 CHINA UNICOM China169 Backbone 8.14ms from Hangzhou, CN
182.222.4.214 AS17858 LG POWERCOMM 1.47ms from Incheon, KR
58.230.84.230 AS9318 SK Broadband Co Ltd 5.21ms from Incheon, KR
162.239.83.198 AS7018 AT&T Enterprises, LLC 2.91ms from Los Angeles, US
37.41.154.150 AS28885 OmanTel NAP 3.11ms from Muscat, OM
14.132.6.230 AS18126 Chubu Telecommunications Company, Inc. 4.76ms from Osaka, JP
3.236.255.118 AS14618 Amazon.com, Inc. 0.37ms from Reston, US
199.203.209.246 AS1680 Cellcom Fixed Line Communication L.P 1.37ms from Rosh Ha‘Ayin, IL
54.215.131.102 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
76.149.118.54 AS7922 Comcast Cable Communications, LLC 10.68ms from San Jose, US
121.144.12.150 AS4766 Korea Telecom 8.17ms from Seoul, KR
60.116.71.230 AS17676 SoftBank Corp. 3.05ms from Tokyo, JP
60.98.31.118 AS17676 SoftBank Corp. 2.98ms from Tokyo, JP
66.49.218.214 AS11814 Distributel Communications Limited 1.27ms from Toronto, CA
120.46.167.214 AS55990 Huawei Cloud Service data center 3.58ms from Beijing, CN
54.69.124.150 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
186.115.213.198 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 4.56ms from Bogota, CO
50.57.28.22 AS19994 Rackspace Hosting 1.27ms from Chicago, US
93.197.46.86 AS3320 Deutsche Telekom AG 1.96ms from Duesseldorf, DE
18.158.74.22 AS16509 Amazon.com, Inc. 0.17ms from Frankfurt am Main, DE
172.161.160.134 AS8075 Microsoft Corporation 0.21ms from Kloten, CH

Traceroute

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

$
traceroute -a -n -q1 -m5 78.156.130.88
traceroute to 78.156.130.88 (78.156.130.88): 5 hops max, 52 byte packets
2 [AS15169] 192.178.99.18 19.348 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in London, GB
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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