Autonomous System details

AS201594

Czech Telecommunication Office  ·  ctu.cz

Czechia

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AS201594 – Czech Telecommunication Office

Field Value
Country Czechia
Website ctu.cz
Hosted domains 1
IPv4 addresses 256
IPv6 addresses 79,228,162,514,264,337,593,543,950,336
ASN type ISP
Registry ripe
Allocated 11 years ago on Sep 12, 2014
Updated 8 months ago on Jul 04, 2025

IP Ranges

Netblock Company Num of IPs
185.68.215.0/24 CTU CZ.NIC 256
Netblock Company
2a05:1c47::/32 CTU CZ.NIC
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WHOIS Details

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                                                ASHandle:       AS201594
                                                OrgID:          AS201594
                                                ASName:         AS201594
                                                ASNumber:       AS201594
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There is 1 domain name hosted across 1 IP address on this ASN.

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IP Address Domain Domains on this IP
185.68.215.40 ██████████ 1

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Peers

There are 20 peers for this ASN.

Peers Name
AS1764 Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH
AS198150 SIACOM JSC
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482 SG.GS
AS25248 RADIOKOMUNIKACE a.s.
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.
AS44306 OMONIA d.o.o.
AS4455 IX Reach Ltd
AS49544 i3D.net B.V
AS51184 Fonira Telekom GmbH
AS6204 INTERKVM HOST SRL
AS6663 Euroweb Romania S.R.L.
AS6881 NIX.CZ z.s.p.o.
AS6939 Hurricane Electric LLC
AS8218 Zayo Infrastructure France SA
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS25248 RADIOKOMUNIKACE a.s.
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
185.68.215.134 AS201594 Czech Telecommunication Office 0.37ms from Prague, CZ
2a05:1c47:0:f::254 AS201594 Czech Telecommunication Office 0.39ms 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
125.87.31.26 AS4134 CHINANET-BACKBONE 2.26ms from Chongqing, CN
177.94.249.234 AS27699 TELEFÔNICA BRASIL S.A 4.33ms from Osasco, BR
20.25.190.234 AS8075 Microsoft Corporation 0.18ms from Phoenix, US
66.85.18.170 AS13415 FirstDigital Communications, LLC 0.47ms from Salt Lake City, US
24.50.201.154 AS14638 Liberty Communications of Puerto Rico LLC 13.11ms from San Juan, PR
47.102.108.122 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.18ms from Shanghai, CN
158.174.71.26 AS8473 Bahnhof AB 0.74ms from Stockholm, SE
218.166.154.106 AS3462 Data Communication Business Group 6.75ms from Taichung, TW
125.228.224.42 AS3462 Data Communication Business Group 3.62ms from Taichung, TW
125.30.130.234 AS2497 Internet Initiative Japan Inc. 1.81ms from Tokyo, JP
66.153.227.218 AS21565 Horry Telephone Cooperative, Inc. 10.00ms from Atlanta, US
60.234.51.154 AS140220 Sky Network Television Ltd 1.36ms from Auckland, NZ
54.71.229.250 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
54.185.147.138 AS16509 Amazon.com, Inc. 0.11ms from Boardman, US
212.82.108.202 AS34010 Yahoo-UK Limited 0.29ms from Dublin, IE
205.196.184.154 AS22442 Phonoscope, Inc. 1.59ms from Houston, US
85.99.117.218 AS9121 Turk Telekomunikasyon Anonim Sirketi 8.38ms from Istanbul, TR
194.72.51.42 AS2856 British Telecommunications PLC 1.51ms from London, GB
120.156.203.90 AS1221 Telstra Limited 1.93ms from Melbourne, AU
213.234.192.10 AS8402 PJSC Vimpelcom 0.89ms from Moscow, RU
218.71.21.74 AS4134 CHINANET-BACKBONE 11.06ms from Ningbo, CN
126.25.171.202 AS17676 SoftBank Corp. 9.81ms from Osaka, JP
109.183.202.250 AS13036 T-Mobile Czech Republic a.s. 3.41ms from Prague, CZ
27.237.57.138 AS4766 Korea Telecom 7.61ms from Seoul, KR
1.161.51.26 AS3462 Data Communication Business Group 1.44ms from Taipei, TW

Traceroute

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

$
traceroute -a -n -q1 -f2 185.68.215.146
traceroute to 185.68.215.146 (185.68.215.146): 64 hops max, 52 byte packets
2 [] 91.210.16.219 0.41 ms
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 AS201594 at robtex.

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