AS number details

AS203208

Czech Telecommunication Office  ·  ctu.cz

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AS203208 – Czech Telecommunication Office

Field Value
Country Czechia
Website ctu.cz
Hosted domains 0
Number of IPv4 768
Number of IPv6 554,597,137,599,850,363,154,807,652,352
ASN type Business
Registry ripe
Allocated 9 years ago on Mar 08, 2016
Updated 2 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.
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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
2a05:1c40::1 AS203208 Czech Telecommunication Office 1.22ms from Prague, CZ
185.68.212.193 AS203208 Czech Telecommunication Office 0.96ms 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
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188.151.158.216 AS1257 Tele2 Sverige AB 2.35ms from Copenhagen, DK
195.78.251.24 AS3320 Deutsche Telekom AG 3.22ms from Frankfurt am Main, DE
14.168.164.152 AS45899 VNPT Corp 2.26ms from Ho Chi Minh City, VN
180.214.232.232 AS45727 Hutchison CP Telecommunications, PT 1.51ms from Jakarta, ID
102.66.202.88 AS328471 HERO TELECOMS (PTY) LTD 8.24ms from Johannesburg, ZA
190.102.146.120 AS27843 WIN EMPRESAS S.A.C. 0.33ms from Lima, PE
176.35.36.216 AS5413 Wavenet Limited 3.25ms from London, GB
90.197.168.168 AS5607 Sky UK Limited 10.12ms from London, GB
2.3.8.120 AS3215 Orange S.A. 15.91ms from Paris, FR
54.191.24.24 AS16509 Amazon.com, Inc. 4.56ms from Portland, US
52.206.146.184 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
1.196.3.168 AS4134 CHINANET-BACKBONE 11.70ms from Wuhan, CN
194.135.140.104 AS60098 Filippov Aleksei Vladilenovich 3.74ms from Yekaterinburg, RU
35.216.136.56 AS19527 Google LLC 0.15ms from Zuerich, CH
20.93.211.24 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
45.59.46.88 AS6181 Cincinnati Bell Telephone Company LLC 2.14ms from Cincinnati, US
24.10.252.152 AS7922 Comcast Cable Communications, LLC 3.39ms from Salt Lake City, US
167.8.15.8 AS63167 TEGNA Inc. 1.24ms from Seattle, US
32.213.90.88 AS46690 Southern New England Telephone Company and SNET America, Inc. 8.36ms from Secaucus, US
18.136.157.232 AS16509 Amazon.com, Inc. 0.11ms from Singapore, SG
162.120.155.216 AS15169 Google LLC 0.33ms from Tokyo, JP
123.116.13.136 AS4808 China Unicom Beijing Province Network 3.17ms from Beijing, CN
186.170.77.200 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 5.56ms from Bogota, CO

Traceroute

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

$
traceroute -a -n -q1 -m10 185.68.214.88
traceroute to 185.68.214.88 (185.68.214.88): 10 hops max, 52 byte packets
2 [AS15169] 192.178.98.38 32.315 ms
3 *
4 *
6 [AS203208] 185.68.212.2 35.073 ms
7 [AS203208] 185.68.212.1 35.997 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Hamina, FI
On

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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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