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 2,438
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 2,438 domain names hosted across 55 IP addresses on this ASN.

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IP Address Domain Domains on this IP
78.156.158.199 ██████████ 1,038
78.156.158.200 ██████████ 383
78.156.158.194 ██████████ 378
78.156.158.75 █████████ 230
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
AS51185 MainStreaming SpA
AS53062 ALT | GRUPO BRASIL TECPAR
AS5405 Inter.link GmbH
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
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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 3 downstreams for this ASN.

Downstreams Name
AS202979 NGA Services, spol. s r.o.
AS207945 CNI Group s.r.o.
AS44104 LCJ Invest, a.s.
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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
78.156.128.83 AS43542 OptoNet Communication, spol. s.r.o. 1.82ms from Prague, CZ
78.156.149.33 AS43542 OptoNet Communication, spol. s.r.o. 1.99ms from Prague, CZ
78.156.155.67 AS43542 OptoNet Communication, spol. s.r.o. 1.93ms from Prague, CZ
78.156.158.189 AS43542 OptoNet Communication, spol. s.r.o. 1.89ms from Prague, CZ
78.156.157.73 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.156.251 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
78.156.135.41 AS43542 OptoNet Communication, spol. s.r.o. 1.91ms from Prague, CZ
78.156.143.241 AS43542 OptoNet Communication, spol. s.r.o. 1.88ms from Prague, CZ
2a00:d940:3:2000::1 AS43542 OptoNet Communication, spol. s.r.o. 2.95ms from Prague, CZ
2a00:d940:0:c::2 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.144.1 AS43542 OptoNet Communication, spol. s.r.o. 2.65ms from Prague, CZ
78.156.131.249 AS43542 OptoNet Communication, spol. s.r.o. 2.01ms from Prague, CZ
78.156.152.17 AS43542 OptoNet Communication, spol. s.r.o. 2.33ms from Prague, CZ
78.156.133.81 AS43542 OptoNet Communication, spol. s.r.o. 1.78ms from Prague, CZ
78.156.150.60 AS43542 OptoNet Communication, spol. s.r.o. 2.72ms from Prague, CZ
78.156.147.236 AS43542 OptoNet Communication, spol. s.r.o. 2.03ms from Prague, CZ
78.156.154.1 AS43542 OptoNet Communication, spol. s.r.o. 4.51ms from Prague, CZ
78.156.137.5 AS43542 OptoNet Communication, spol. s.r.o. 1.84ms from Prague, CZ
78.156.159.246 AS43542 OptoNet Communication, spol. s.r.o. 1.86ms 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
178.117.161.166 AS6848 Telenet BV 9.60ms from Amsterdam, NL
118.174.190.150 AS23969 TOT Public Company Limited 2.28ms from Bangkok, TH
52.13.181.6 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
23.62.16.246 AS16625 Akamai Technologies, Inc. 0.29ms from Chennai, IN
74.129.177.102 AS10796 Charter Communications Inc 12.70ms from Chicago, US
99.147.138.38 AS7018 AT&T Enterprises, LLC 2.35ms from Dallas, US
84.146.35.182 AS3320 Deutsche Telekom AG 7.64ms from Frankfurt am Main, DE
220.160.1.6 AS4134 CHINANET-BACKBONE 3.32ms from Fuzhou, CN
117.2.188.70 AS7552 Viettel Group 10.38ms from Ho Chi Minh City, VN
23.99.115.70 AS8075 Microsoft Corporation 0.35ms from Hong Kong, HK
36.92.56.118 AS7713 PT Telekomunikasi Indonesia 0.67ms from Jakarta, ID
79.32.24.182 AS3269 Telecom Italia S.p.A. 6.93ms from Milan, IT
159.122.159.102 AS36351 IBM Cloud 0.52ms from Milan, IT
95.154.177.166 AS43714 Production co-operative Economic-legal laboratory 2.54ms from Moscow, RU
98.118.129.102 AS701 Verizon Business 9.45ms from New York City, US
61.205.72.54 AS10016 Minaminihon Information Processing Center Co Ltd 12.71ms from Osaka, JP
202.247.33.70 AS2518 BIGLOBE Inc. 2.87ms from Osaka, JP
83.159.56.54 AS12322 Free SAS 10.54ms from Paris, FR
82.125.194.166 AS3215 Orange S.A. 2.37ms from Paris, FR
210.108.157.102 AS3786 LG DACOM Corporation 7.04ms from Seoul, KR
36.36.134.166 AS17962 ShenZhen Topway Video Communication Co. Ltd 10.35ms from Shenzhen, CN
104.133.182.198 AS36384 Google LLC 13.47ms from Al Fujairah City, AE
101.22.11.118 AS4837 CHINA UNICOM China169 Backbone 8.65ms from Beijing, CN
38.122.54.118 AS174 Cogent Communications, LLC 0.72ms from Boca Raton, US
68.220.214.150 AS8075 Microsoft Corporation 0.21ms from Boydton, US

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 78.156.145.129
traceroute to 78.156.145.129 (78.156.145.129): 7 hops max, 52 byte packets
3 [AS21215] 185.81.60.30 12.226 ms
4 [AS21215] 185.18.12.1 20.608 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Novi Travnik, BA
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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