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 11 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

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

IP Address ASN Details
185.115.180.77 AS204064 CEZNET s.r.o. 2.96ms from Brno, CZ
2a07:7a01:3401:0:1027:f5ff:feff:c03e AS204064 CEZNET s.r.o. 4.36ms from Prague, CZ
185.201.12.81 AS204064 CEZNET s.r.o. 3.43ms from Prague, CZ
185.201.13.31 AS204064 CEZNET s.r.o. 3.41ms from Prague, CZ
185.151.175.127 AS204064 CEZNET s.r.o. 3.27ms from Prague, CZ
2a07:7a00:4100:301:76e6:b8ff:fe5b:349f AS204064 CEZNET s.r.o. 6.72ms from Prague, CZ
185.151.172.160 AS204064 CEZNET s.r.o. 3.28ms from Prague, CZ
185.116.51.65 AS204064 CEZNET s.r.o. 0.15ms from Prague, CZ
2a07:7a01:f7ea:2:: AS204064 CEZNET s.r.o. 3.63ms from Prague, CZ
2a07:7a01:4101:0:31:92ff:fea3:d156 AS204064 CEZNET s.r.o. 4.04ms from Prague, CZ
2a07:7a01:3202:0:c006:c3ff:feb9:2325 AS204064 CEZNET s.r.o. 4.42ms from Prague, CZ
2a07:7a01:3800:0:e848:b8ff:fe62:67a1 AS204064 CEZNET s.r.o. 4.40ms from Prague, CZ
2a07:7a00:3402:10::1 AS204064 CEZNET s.r.o. 5.07ms from Prague, CZ
185.116.49.221 AS204064 CEZNET s.r.o. 4.41ms from Prague, CZ
185.115.183.13 AS204064 CEZNET s.r.o. 3.31ms from Prague, CZ
2a07:7a01:4100:0:60a4:b7ff:fe2d:570e AS204064 CEZNET s.r.o. 4.06ms from Prague, CZ
185.115.181.65 AS204064 CEZNET s.r.o. 3.69ms from Prague, CZ
185.201.14.30 AS204064 CEZNET s.r.o. 3.40ms from Prague, CZ
185.151.173.31 AS204064 CEZNET s.r.o. 3.32ms from Prague, CZ
185.201.15.109 AS204064 CEZNET s.r.o. 3.59ms from Prague, CZ
185.151.174.61 AS204064 CEZNET s.r.o. 3.27ms 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
186.145.231.32 AS10620 Telmex Colombia S.A. 8.63ms from Bogota, CO
181.48.47.208 AS14080 Telmex Colombia S.A. 1.33ms from Bogotá, CO
84.192.175.208 AS6848 Telenet BV 6.22ms from Brussels, BE
96.189.58.176 AS53297 Comcast Cable Communications, LLC 0.89ms from Chicago, US
108.200.224.192 AS7018 AT&T Enterprises, LLC 5.73ms from Columbus, US
191.250.124.64 AS18881 TELEFÔNICA BRASIL S.A 11.66ms from Curitiba, BR
20.33.144.192 AS8069 Microsoft Corporation 0.37ms from Des Moines, US
1.95.120.208 AS55990 Huawei Cloud Service data center 1.00ms from Guiyang, CN
179.4.40.16 AS6535 Telmex Servicios Empresariales S.A. 1.94ms from Santiago, CL
180.233.216.0 AS38680 CMB 1.85ms from Seoul, KR
126.51.205.32 AS17676 SoftBank Corp. 2.88ms from Tokyo, JP
222.224.242.96 AS9595 NTT-ME Corporation 2.65ms from Tokyo, JP
73.100.209.192 AS7922 Comcast Cable Communications, LLC 6.93ms from Boston, US
76.240.105.128 AS7018 AT&T Enterprises, LLC 2.03ms from Dallas, US
31.3.210.0 AS206470 Menzel IT GmbH 8.63ms from Frankfurt am Main, DE
81.71.25.112 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.16ms from Guangzhou, CN
14.249.96.0 AS45899 VNPT Corp 3.01ms from Hanoi, VN
211.209.173.176 AS9318 SK Broadband Co Ltd 1.28ms from Incheon, KR
109.155.193.32 AS2856 British Telecommunications PLC 5.54ms from London, GB
98.184.227.160 AS22773 Cox Communications Inc. 5.37ms from Los Angeles, US
101.186.177.240 AS1221 Telstra Limited 1.81ms from Melbourne, AU
203.51.26.224 AS1221 Telstra Limited 2.88ms from Melbourne, AU
163.123.27.16 AS11232 Midcontinent Communications 17.28ms from Minneapolis, US
5.227.44.48 AS8580 MTS PJSC 8.44ms from Moscow, RU
27.209.243.0 AS4837 CHINA UNICOM China169 Backbone 6.05ms from Qingdao, 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 185.201.12.65
traceroute to 185.201.12.65 (185.201.12.65): 64 hops max, 52 byte packets
2 [] 91.210.16.143 0.841 ms
3 [AS47232] 185.151.171.8 10.605 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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