Autonomous System details

AS203208

Czech Telecommunication Office  ·  ctu.cz

Czechia
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AS203208 – Czech Telecommunication Office

Field Value
Country Czechia
Website ctu.cz
Hosted domains 0
IPv4 addresses 768
IPv6 addresses 554,597,137,599,850,363,154,807,652,352
ASN type Business
Registry ripe
Allocated 10 years ago on Mar 08, 2016
Updated 6 months ago on Jul 04, 2025
Netblock Company Num of IPs
185.68.212.0/23 CTU SOKOLOVSKA 512
185.68.214.0/24 CTU SOKOLOVSKA 256
Netblock Company
2a05:1c40::/30 CTU SOKOLOVSKA
2a05:1c44::/31 CTU SOKOLOVSKA
2a05:1c46::/32 CTU SOKOLOVSKA
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WHOIS Details


                                                ASHandle:       AS203208
                                                OrgID:          AS203208
                                                ASName:         AS203208
                                                ASNumber:       AS203208
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

                                            
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Hosted Domains

There are no domains currently hosted on this ASN.

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Useful for Cybersecurity

Peers

There is 1 peer for this ASN.

Peers Name
AS6855 Slovak Telekom, a.s.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS6855 Slovak Telekom, a.s.
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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
185.68.212.34 AS203208 Czech Telecommunication Office 0.87ms from Prague, CZ
2a05:1c40::1 AS203208 Czech Telecommunication Office 0.99ms 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
76.111.79.72 AS7922 Comcast Cable Communications, LLC 8.76ms from Ashburn, US
23.253.221.56 AS19994 Rackspace Hosting 1.22ms from Chicago, US
89.1.21.72 AS8422 NetCologne Gesellschaft fur Telekommunikation mbH 1.65ms from Duesseldorf, DE
5.100.13.200 AS28876 suec // dacor GmbH 8.10ms from Frankfurt am Main, DE
195.78.251.24 AS3320 Deutsche Telekom AG 3.27ms from Frankfurt am Main, DE
37.84.160.232 AS3320 Deutsche Telekom AG 17.76ms from Frankfurt am Main, DE
112.177.176.88 AS4766 Korea Telecom 1.36ms from Incheon, KR
23.243.7.200 AS20001 Charter Communications Inc 5.59ms from Los Angeles, US
178.167.16.152 AS21453 Flex Ltd. 2.37ms from Moscow, RU
192.214.207.40 AS16347 ADISTA SAS 0.37ms from Paris, FR
50.16.249.88 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
49.28.57.24 AS4766 Korea Telecom 7.47ms from Seoul, KR
37.53.206.72 AS6849 JSC Ukrtelecom 9.18ms from Warsaw, PL
95.211.154.168 AS60781 LeaseWeb Netherlands B.V. 0.23ms from Amsterdam, NL
77.188.143.200 AS6805 Telefonica Germany GmbH & Co.OHG 3.11ms from Berlin, DE
173.189.228.168 AS7029 Windstream Communications LLC 8.22ms from Dallas, US
87.148.140.248 AS3320 Deutsche Telekom AG 5.61ms from Frankfurt am Main, DE
220.162.112.184 AS4134 CHINANET-BACKBONE 11.75ms from Fuzhou, CN
113.213.111.216 AS4837 CHINA UNICOM China169 Backbone 8.94ms from Harbin, CN
23.57.123.200 AS16625 Akamai Technologies, Inc. 0.36ms from Lima, PE
86.189.141.232 AS2856 British Telecommunications PLC 2.25ms from London, GB
37.113.41.152 AS41754 JSC "ER-Telecom Holding" 10.97ms from Moscow, RU
157.150.194.232 AS51964 ORANGE BUSINESS SERVICES U.S. Inc. 1.80ms from New York City, US
157.143.190.8 AS8399 SEWAN SAS 0.52ms from Paris, FR
20.97.124.152 AS8075 Microsoft Corporation 0.16ms from San Antonio, US

Traceroute

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

$
traceroute -a -n -q1 185.68.212.1
traceroute to 185.68.212.1 (185.68.212.1): 64 hops max, 52 byte packets
2 *
3 [AS1299] 62.115.32.255 0.956 ms
4 *
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 AS203208 at robtex.

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