AS number details

AS204064

CEZNET s.r.o.  ·  ceznet.cz

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AS204064 – CEZNET s.r.o.

Field Value
Country Czechia
Website ceznet.cz
Hosted domains 8
Number of IPv4 4,096
Number of IPv6 633,825,300,114,114,700,748,351,602,688
ASN type ISP
Registry ripe
Allocated 10 years ago on Sep 03, 2015
Updated a month ago on Sep 12, 2025
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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IP Ranges API

WHOIS Details


                                                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 8 domain names hosted across 5 IP addresses on this ASN.

IP Address Domain Domains on this IP
185.151.174.67 ██████████ 4
185.151.175.84 ████████ 1
185.201.15.66 ██████████ 1
185.151.172.79 ██████████ 1
185.151.175.71 ██████████ 1

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Useful for Cybersecurity

Peers

There are 2 peers for this ASN.

Peers Name
AS47232 ISP Alliance a.s.
AS51424 Jiri Sperl
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
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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Pingable IPs

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

IP Address ASN Details
185.151.174.42 AS204064 CEZNET s.r.o. 3.22ms from Prague, CZ
185.115.181.65 AS204064 CEZNET s.r.o. 3.66ms from Prague, CZ
185.151.172.22 AS204064 CEZNET s.r.o. 3.27ms from Prague, CZ
2a07:7a01:2100:0:31:92ff:fea3:ff46 AS204064 CEZNET s.r.o. 4.83ms from Prague, CZ
185.116.49.221 AS204064 CEZNET s.r.o. 4.37ms from Prague, CZ
2a07:7a01:3401:0:1027:f5ff:feff:c03e AS204064 CEZNET s.r.o. 4.29ms from Prague, CZ
185.115.180.77 AS204064 CEZNET s.r.o. 0.29ms from Prague, CZ
185.116.51.54 AS204064 CEZNET s.r.o. 0.15ms from Prague, CZ
2a07:7a01:4101:0:e848:b8ff:fe5f:750a AS204064 CEZNET s.r.o. 3.99ms from Prague, CZ
185.115.183.13 AS204064 CEZNET s.r.o. 3.21ms from Prague, CZ
185.151.173.227 AS204064 CEZNET s.r.o. 3.23ms from Prague, CZ
2a07:7a01:f7ea:2::16 AS204064 CEZNET s.r.o. 3.62ms from Prague, CZ
185.201.15.109 AS204064 CEZNET s.r.o. 3.52ms from Prague, CZ
185.201.13.28 AS204064 CEZNET s.r.o. 3.33ms from Prague, CZ
2a07:7a01:4100:0:60a4:b7ff:fec2:4097 AS204064 CEZNET s.r.o. 3.96ms from Prague, CZ
2a07:7a00:3402:10::1 AS204064 CEZNET s.r.o. 5.07ms from Prague, CZ
185.201.14.31 AS204064 CEZNET s.r.o. 3.36ms from Prague, CZ
185.151.175.95 AS204064 CEZNET s.r.o. 3.23ms from Prague, CZ
185.201.12.78 AS204064 CEZNET s.r.o. 3.38ms 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
35.234.23.192 AS396982 Google LLC 0.15ms from Chang-hua, TW
131.100.215.128 AS61662 G2 XAXIM TELECOMUNICACOES LTDA 1.36ms from Chapeco, BR
68.232.152.112 AS30238 Cisco Systems Ironport Division 0.65ms from Frankfurt am Main, DE
129.206.10.224 AS553 BelWue-Koordination 3.73ms from Frankfurt am Main, DE
20.195.79.0 AS8075 Microsoft Corporation 0.30ms from Hong Kong, HK
113.229.198.224 AS4837 CHINA UNICOM China169 Backbone 6.30ms from Liaoyang, CN
86.132.206.0 AS2856 British Telecommunications PLC 2.69ms from London, GB
84.126.79.160 AS6739 VODAFONE ONO, S.A. 11.11ms from Madrid, ES
72.105.207.240 AS6167 Verizon Business 12.86ms from Mount Prospect, US
13.127.145.64 AS16509 Amazon.com, Inc. 0.11ms from Mumbai, IN
115.207.32.80 AS4134 CHINANET-BACKBONE 6.08ms from Ningbo, CN
189.63.240.32 AS28573 Claro NXT Telecomunicacoes Ltda 10.63ms from Sao Paulo, BR
85.211.49.64 AS8075 Microsoft Corporation 1.40ms from Singapore, SG
95.192.100.32 AS3301 Telia Company AB 18.21ms from Stockholm, SE
60.88.54.112 AS17676 SoftBank Corp. 11.02ms from Tokyo, JP
106.73.58.192 AS2516 KDDI CORPORATION 4.84ms from Tokyo, JP
87.233.142.32 AS15703 TrueServer BV AS number 0.45ms from Amsterdam, NL
212.184.178.80 AS3320 Deutsche Telekom AG 8.75ms from Frankfurt am Main, DE
14.235.47.48 AS45899 VNPT Corp 5.85ms from Hanoi, VN
94.7.183.160 AS5607 Sky UK Limited 6.34ms from London, GB
189.222.43.240 AS8151 UNINET 3.77ms from Los Angeles, US
218.74.83.64 AS4134 CHINANET-BACKBONE 8.51ms from Nanchang, CN
217.94.147.176 AS3320 Deutsche Telekom AG 8.75ms from Nuernberg, DE
46.152.2.144 AS35819 Etihad Etisalat, a joint stock company 2.57ms from Riyadh, SA
222.106.98.208 AS4766 Korea Telecom 1.22ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 185.151.173.129
traceroute to 185.151.173.129 (185.151.173.129): 64 hops max, 52 byte packets
3 [] 91.210.16.109 6.269 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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