Autonomous System details

AS204064

CEZNET s.r.o.  ·  ceznet.cz

Czechia

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AS204064 – CEZNET s.r.o.

Field Value
Country Czechia
Website ceznet.cz
Hosted domains 10
IPv4 addresses 4,096
IPv6 addresses 633,825,300,114,114,700,748,351,602,688
ASN type ISP
Registry ripe
Allocated 10 years ago on Sep 03, 2015
Updated 6 months ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
185.115.180.0/22 CEZNET s.r.o. 1,024
185.116.48.0/22 CEZNET s.r.o. 1,024
185.151.172.0/22 TAN 1,024
185.201.12.0/22 CEZNET s.r.o. 1,024
185.116.51.0/24 ISP Alliance 256
Netblock Company
2a07:7a00::/29 CEZNET s.r.o.
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WHOIS Details

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                                                ASHandle:       AS204064
                                                OrgID:          AS204064
                                                ASName:         AS204064
                                                ASNumber:       AS204064
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 10 domain names hosted across 5 IP addresses on this ASN.

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IP Address Domain Domains on this IP
185.151.174.67 █████████ 5
185.151.172.79 ██████████ 2
185.151.175.84 ████████ 1
185.151.175.71 ██████████ 1
185.201.15.66 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS47232 ISP Alliance a.s.
AS51424 Jiri Sperl
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Upstreams

There is 1 peer for this ASN.

upstreams Name
AS47232 ISP Alliance a.s.
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Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS51424 Jiri Sperl
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
185.151.172.28 AS204064 CEZNET s.r.o. 3.26ms from Prague, CZ
185.116.51.198 AS204064 CEZNET s.r.o. 0.15ms from Prague, CZ
185.115.181.65 AS204064 CEZNET s.r.o. 3.64ms from Prague, CZ
2a07:7a01:3800:0:e848:b8ff:fe62:67a1 AS204064 CEZNET s.r.o. 4.32ms from Prague, CZ
185.151.173.31 AS204064 CEZNET s.r.o. 3.24ms from Prague, CZ
185.201.13.20 AS204064 CEZNET s.r.o. 3.36ms from Prague, CZ
185.116.49.221 AS204064 CEZNET s.r.o. 4.33ms from Prague, CZ
2a07:7a01:f7ea:2::16 AS204064 CEZNET s.r.o. 3.40ms from Prague, CZ
185.201.14.30 AS204064 CEZNET s.r.o. 3.38ms from Prague, CZ
185.151.174.63 AS204064 CEZNET s.r.o. 3.19ms from Prague, CZ
2a07:7a01:3202:0:31:92ff:fea3:fdcc AS204064 CEZNET s.r.o. 4.21ms from Prague, CZ
2a07:7a00:3402:99::1 AS204064 CEZNET s.r.o. 5.04ms from Prague, CZ
185.151.175.119 AS204064 CEZNET s.r.o. 3.19ms from Prague, CZ
185.115.180.77 AS204064 CEZNET s.r.o. 2.95ms from Brno, CZ
185.115.183.13 AS204064 CEZNET s.r.o. 3.26ms from Prague, CZ
2a07:7a01:3401:0:1027:f5ff:feff:c03e AS204064 CEZNET s.r.o. 4.34ms from Prague, CZ
2a07:7a01:4100:0:e848:b8ff:fe5f:6ad5 AS204064 CEZNET s.r.o. 4.00ms from Prague, CZ
2a07:7a01:4101:0:31:92ff:fea3:df99 AS204064 CEZNET s.r.o. 4.29ms from Prague, CZ
185.201.15.113 AS204064 CEZNET s.r.o. 3.57ms from Prague, CZ
185.201.12.74 AS204064 CEZNET s.r.o. 3.40ms 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
35.155.52.112 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
56.112.38.208 AS16509 Amazon.com, Inc. 1.67ms from Calgary, CA
76.240.105.128 AS7018 AT&T Enterprises, LLC 2.05ms from Dallas, US
212.147.119.16 AS12350 VTX Services SA 0.75ms from Geneve, CH
183.167.230.144 AS4134 CHINANET-BACKBONE 9.76ms from Huai'an, CN
39.37.186.192 AS17557 Pakistan Telecommunication Company Limited 1.88ms from Lahore, PK
93.102.149.160 AS2860 NOS COMUNICACOES, S.A. 11.45ms from Lisbon, PT
51.24.51.128 AS16509 Amazon.com, Inc. 0.20ms from London, GB
158.223.193.0 AS786 Jisc Services Limited 1.69ms from London, GB
15.206.216.112 AS16509 Amazon.com, Inc. 0.13ms from Mumbai, IN
83.250.238.208 AS1257 Tele2 Sverige AB 1.09ms from Stockholm, SE
73.147.91.208 AS7922 Comcast Cable Communications, LLC 9.88ms from Ashburn, US
44.236.0.64 AS16509 Amazon.com, Inc. 0.19ms from Boardman, US
159.71.209.160 AS5972 United States Department of Defense (DoD) 10.76ms from Dallas, US
92.40.34.48 AS206067 Hutchison 3G UK Limited 15.91ms from London, GB
64.209.20.96 AS3549 Level 3 Parent, LLC 8.98ms from Los Angeles, US
88.12.88.96 AS3352 TELEFONICA DE ESPANA S.A.U. 1.20ms from Madrid, ES
115.192.200.112 AS4134 CHINANET-BACKBONE 5.83ms from Ningbo, CN
39.90.17.48 AS4837 CHINA UNICOM China169 Backbone 8.55ms from Qingdao, CN
135.233.234.112 AS8075 Microsoft Corporation 0.21ms from San Antonio, US
66.183.213.192 AS852 TELUS Communications Inc. 4.55ms from Seattle, US
143.20.240.16 AS20326 TeraSwitch Networks Inc. 0.16ms from Amsterdam, NL
63.248.25.128 AS25782 JAB Wireless, INC. 0.06ms from Ashburn, US
147.96.85.96 AS766 RedIRIS Autonomous System 11.29ms from Barcelona, ES
103.216.254.16 AS17623 China Unicom Shenzen network 5.36ms from Guangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 185.151.173.30
traceroute to 185.151.173.30 (185.151.173.30): 64 hops max, 52 byte packets
2 [] 91.210.16.109 1.753 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 AS204064 at robtex.

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