Autonomous System details

AS204666

Jiri Tlapak  ·  tlapnet.cz

Czechia

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AS204666 – Jiri Tlapak

Field Value
Country Czechia
Website tlapnet.cz
Hosted domains 661
IPv4 addresses 14,080
IPv6 addresses 4,516,006,472,238,886,857,461,179,875,328
ASN type ISP
Registry ripe
Allocated 8 years ago on Jan 29, 2018
Updated a year ago on Mar 25, 2025

IP Ranges

Netblock Company Num of IPs
37.221.240.0/20 ISP Alliance a.s. 4,096
45.153.192.0/22 ISP Alliance a.s. 1,024
185.19.0.0/22 ISP Alliance a.s. 1,024
185.64.220.0/22 ISP Alliance a.s. 1,024
185.87.140.0/22 Jiri Tlapak 1,024
185.97.24.0/22 ISP Alliance a.s. 1,024
185.230.172.0/22 Jiri Tlapak 1,024
185.243.172.0/22 Jiri Tlapak 1,024
5.59.102.0/23 IT Globe s.r.o. 512
91.224.90.0/23 Livady s.r.o. 512
185.87.142.0/23 Jiri Tlapak 512
213.108.162.0/23 ISP Alliance a.s. 512
37.221.241.0/24 Caslav - Tlapnet s.r.o. 256
37.221.242.0/24 Caslav - Tlapnet s.r.o. 256
37.221.243.0/24 Caslav - Tlapnet s.r.o. 256
37.221.245.0/24 Policka - Tlapnet s.r.o. 256
37.221.247.0/24 Policka and Rychnov nad Kneznou - Tlapnet s.r.o. 256
37.221.248.0/24 Prelouc - Tlapnet s.r.o. 256
37.221.249.0/24 Prelouc - Tlapnet s.r.o. 256
37.221.250.0/24 Svetla nad Sazavou - Tlapnet s.r.o. 256
37.221.251.0/24 Svetla nad Sazavou - Tlapnet s.r.o. 256
37.221.252.0/24 Golcuv Jenikov - Tlapnet s.r.o. 256
45.153.192.0/24 ISP Alliance a.s. 256
45.153.194.0/24 ISP Alliance a.s. 256
45.153.195.0/24 ISP Alliance a.s. 256
176.119.192.0/24 Jiri Tlapak 256
185.64.220.0/24 core routers and so on of GS-NET s.r.o. 256
185.74.60.0/24 Tlapnet s.r.o. 256
185.97.24.0/24 STEN.cz s.r.o. 256
185.97.25.0/24 STEN.cz s.r.o. 256
185.97.26.0/24 STEN.cz s.r.o. 256
185.188.100.0/24 TrojanoviceNET s.r.o. 256
185.188.101.0/24 Tlapnet s.r.o. 256
185.188.103.0/24 Tlapnet s.r.o. 256
213.108.162.0/24 ISP Alliance a.s. 256

Netblock Company
2a04:c740::/29 ISP Alliance a.s.
2a04:f940::/29 ISP Alliance a.s.
2a05:aa00::/29 Jiri Tlapak
2a0a:10c0::/29 ISP Alliance a.s.
2a0d:1880::/29 Jiri Tlapak
2a0f:9300::/29 ISP Alliance a.s.
2a0f:fec0::/29 Jiri Tlapak
2a03:d840::/32 ISP Alliance a.s.
2a03:d840:fe02::/48 ISP Alliance a.s.
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WHOIS Details

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                                                ASHandle:       AS204666
                                                OrgID:          AS204666
                                                ASName:         AS204666
                                                ASNumber:       AS204666
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 661 domain names hosted across 137 IP addresses on this ASN.

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IP Address Domain Domains on this IP
5.59.102.15 ██████████ 48
5.59.102.14 ██████████ 47
185.64.221.200 ██████████ 27
37.221.240.35 ██████████ 21
37.221.254.200 ██████████ 19
37.221.240.36 ██████████ 13
37.221.247.11 ██████████ 11
37.221.242.12 ██████████ 10
185.243.172.166 ██████████ 8
213.108.162.231 ██████████ 7

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Peers

There are 4 peers for this ASN.

Peers Name
AS16019 Vodafone Czech Republic a.s.
AS197412 Jiri Tlapak
AS210436 IT Globe s.r.o.
AS47232 ISP Alliance a.s.
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ASN API & Database

Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS16019 Vodafone Czech Republic a.s.
AS47232 ISP Alliance a.s.
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ASN API & Database

Downstreams

There are 2 downstreams for this ASN.

Downstreams Name
AS197412 Jiri Tlapak
AS210436 IT Globe s.r.o.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
185.243.174.228 AS204666 Jiri Tlapak 2.89ms from Prague, CZ
37.221.242.221 AS204666 Jiri Tlapak 0.48ms from Prague, CZ
45.153.195.251 AS204666 Jiri Tlapak 0.55ms from Prague, CZ
185.74.60.72 AS204666 Jiri Tlapak 1.36ms from Prague, CZ
185.87.140.41 AS204666 Jiri Tlapak 4.50ms from Prague, CZ
37.221.241.5 AS204666 Jiri Tlapak 1.49ms from Prague, CZ
37.221.240.49 AS204666 Jiri Tlapak 0.38ms from Prague, CZ
45.153.192.222 AS204666 Jiri Tlapak 2.33ms from Prague, CZ
2a04:c740:ffff:ffa3::1 AS204666 Jiri Tlapak 0.37ms from Prague, CZ
185.64.220.249 AS204666 Jiri Tlapak 1.49ms from Prague, CZ
37.221.253.185 AS204666 Jiri Tlapak 0.41ms from Prague, CZ
185.188.103.129 AS204666 Jiri Tlapak 0.65ms from Prague, CZ
185.87.142.66 AS204666 Jiri Tlapak 1.44ms from Prague, CZ
5.59.103.121 AS204666 Jiri Tlapak 0.41ms from Prague, CZ
185.97.24.5 AS204666 Jiri Tlapak 2.45ms from Prague, CZ
185.188.101.110 AS204666 Jiri Tlapak 8.03ms from Prague, CZ
37.221.251.222 AS204666 Jiri Tlapak 2.38ms from Prague, CZ
185.19.3.5 AS204666 Jiri Tlapak 0.42ms from Prague, CZ
185.97.25.28 AS204666 Jiri Tlapak 2.74ms from Prague, CZ
185.19.0.193 AS204666 Jiri Tlapak 1.84ms from Prague, CZ
37.221.245.15 AS204666 Jiri Tlapak 3.46ms from Prague, CZ
37.221.252.5 AS204666 Jiri Tlapak 1.46ms from Prague, CZ
185.19.2.6 AS204666 Jiri Tlapak 3.51ms from Prague, CZ
185.19.1.1 AS204666 Jiri Tlapak 2.91ms from Prague, CZ
185.243.175.151 AS204666 Jiri Tlapak 2.78ms 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
192.156.217.26 AS57043 HOSTKEY B.V. 0.44ms from Amsterdam, NL
119.50.152.250 AS4837 CHINA UNICOM China169 Backbone 6.56ms from Changchun, CN
95.173.161.202 AS51559 Netinternet Bilisim Teknolojileri AS 0.11ms from Denizli, TR
176.97.147.26 AS9009 M247 Europe SRL 0.29ms from Frankfurt am Main, DE
78.27.126.90 AS16086 DNA Oyj 0.90ms from Helsinki, FI
136.34.19.202 AS16591 Google Fiber Inc. 0.80ms from Kansas City, US
91.197.146.42 AS43576 LTD KuMIR TELECOM 0.28ms from Kyiv, UA
76.175.107.58 AS20001 Charter Communications Inc 4.28ms from Los Angeles, US
106.70.125.250 AS4804 Microplex PTY LTD 2.00ms from Melbourne, AU
116.82.248.170 AS2527 Sony Network Communications Inc. 3.65ms from Osaka, JP
200.223.183.90 AS7738 V tal 2.78ms from Rio de Janeiro, BR
200.195.7.154 AS7738 V tal 7.42ms from Rio de Janeiro, BR
201.123.169.58 AS8151 UNINET 9.44ms from Santiago de Queretaro, MX
126.100.241.154 AS17676 SoftBank Corp. 10.13ms from Tokyo, JP
126.2.251.122 AS17676 SoftBank Corp. 3.85ms from Tokyo, JP
97.146.181.122 AS6167 Verizon Business 17.44ms from Ashburn, US
71.25.54.106 AS7922 Comcast Cable Communications, LLC 7.05ms from Ashburn, US
195.8.12.186 AS8657 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 0.34ms from Braga, PT
132.231.13.10 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 11.29ms from Frankfurt am Main, DE
203.195.157.106 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.95ms from Guangzhou, CN
222.253.164.122 AS45899 VNPT Corp 4.91ms from Ho Chi Minh City, VN
171.79.91.90 AS24560 Bharti Airtel Ltd., Telemedia Services 2.00ms from Kolkata, IN
62.31.61.42 AS5089 Virgin Media Limited 9.42ms from London, GB
3.169.224.90 AS16509 Amazon.com, Inc. 1.32ms from Los Angeles, US
80.31.139.186 AS3352 TELEFONICA DE ESPANA S.A.U. 10.47ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f4 37.221.251.222
traceroute to 37.221.251.222 (37.221.251.222): 64 hops max, 52 byte packets
4 [AS16019] 213.192.1.6 0.391 ms
5 *
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 AS204666 at robtex.

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