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 15,104
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
85.255.88.0/22 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

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

IP Address ASN Details
37.221.244.26 AS204666 Jiri Tlapak 3.68ms from Prague, CZ
37.221.255.100 AS204666 Jiri Tlapak 0.39ms from Prague, CZ
185.243.172.33 AS204666 Jiri Tlapak 0.40ms from Prague, CZ
185.243.174.228 AS204666 Jiri Tlapak 2.98ms from Prague, CZ
185.188.100.1 AS204666 Jiri Tlapak 7.23ms from Prague, CZ
45.153.193.156 AS204666 Jiri Tlapak 0.31ms from Prague, CZ
185.243.175.195 AS204666 Jiri Tlapak 2.83ms from Prague, CZ
5.59.103.137 AS204666 Jiri Tlapak 0.42ms from Prague, CZ
37.221.252.10 AS204666 Jiri Tlapak 1.46ms from Prague, CZ
185.64.221.203 AS204666 Jiri Tlapak 0.42ms from Prague, CZ
45.153.192.222 AS204666 Jiri Tlapak 2.34ms from Prague, CZ
176.119.192.129 AS204666 Jiri Tlapak 0.36ms from Prague, CZ
37.221.240.49 AS204666 Jiri Tlapak 0.35ms from Prague, CZ
185.87.140.58 AS204666 Jiri Tlapak 4.55ms from Prague, CZ
37.221.242.221 AS204666 Jiri Tlapak 0.50ms from Prague, CZ
45.153.194.17 AS204666 Jiri Tlapak 0.22ms from Prague, CZ
85.255.91.129 AS204666 Jiri Tlapak 3.06ms from Prague, CZ
37.221.241.150 AS204666 Jiri Tlapak 1.46ms from Prague, CZ
185.188.103.129 AS204666 Jiri Tlapak 0.57ms from Prague, CZ
185.64.220.249 AS204666 Jiri Tlapak 1.42ms from Prague, CZ
5.59.102.24 AS204666 Jiri Tlapak 0.43ms from Prague, CZ
185.243.173.5 AS204666 Jiri Tlapak 0.34ms from Prague, CZ
185.19.3.5 AS204666 Jiri Tlapak 0.40ms from Prague, CZ
37.221.246.1 AS204666 Jiri Tlapak 0.39ms from Prague, CZ
2a03:d840:fff:f000:9209:d0ff:fe87:1d3 AS204666 Jiri Tlapak 9.64ms 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
20.221.183.42 AS8075 Microsoft Corporation 0.36ms from Boydton, US
50.83.95.58 AS30036 Mediacom Communications Corp 10.02ms from Chicago, US
77.33.181.10 AS44869 FIBIA P/S 1.31ms from Copenhagen, DK
41.175.39.26 AS30844 Liquid Telecommunications Ltd 1.39ms from Dar es Salaam, TZ
86.46.232.42 AS5466 Eircom Limited 3.21ms from Dublin, IE
124.51.107.154 AS17858 LG POWERCOMM 1.58ms from Incheon, KR
117.194.25.10 AS9829 National Internet Backbone 1.36ms from Kolkata, IN
13.43.50.10 AS16509 Amazon.com, Inc. 0.17ms from London, GB
68.229.63.106 AS22773 Cox Communications Inc. 9.30ms from Los Angeles, US
85.55.104.202 AS12479 Orange Espagne SA 7.86ms from Madrid, ES
151.30.113.42 AS1267 WIND TRE S.P.A. 6.06ms from Milan, IT
80.74.186.106 AS3302 Retelit Digital Services S.p.A. 4.54ms from Milan, IT
198.96.95.122 AS19318 Interserver, Inc 0.41ms from New York City, US
200.203.68.250 AS8167 V tal 11.44ms from Novo Hamburgo, BR
176.197.15.218 AS39927 E-Light-Telecom Ltd. 8.00ms from Novosibirsk, RU
91.151.125.74 AS15557 Societe Francaise Du Radiotelephone - SFR SA 1.51ms from Paris, FR
217.28.53.218 AS28886 RETN Limited 0.31ms from Riga, LV
89.223.69.250 AS9123 JSC TIMEWEB 0.72ms from Saint Petersburg, RU
58.236.154.218 AS9318 SK Broadband Co Ltd 1.60ms from Seoul, KR
126.13.13.154 AS17676 SoftBank Corp. 4.48ms from Tokyo, JP
54.175.102.90 AS14618 Amazon.com, Inc. 0.52ms from Ashburn, US
71.9.166.10 AS20115 Charter Communications LLC 15.47ms from Atlanta, US
108.82.200.186 AS7018 AT&T Enterprises, LLC 6.55ms from Atlanta, US
54.71.46.170 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
82.86.143.250 AS272809 THUNDERNET, C.A. 0.46ms from Caracas, VE

Traceroute

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

$
traceroute -a -n -q1 -f4 37.221.244.9
traceroute to 37.221.244.9 (37.221.244.9): 64 hops max, 52 byte packets
4 [] 91.210.16.143 0.901 ms
5 [AS47232] 185.151.171.8 14.676 ms
6 *
7 *
8 *
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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