AS204666

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Summary

IP address summary information
Name	Jiri Tlapak
Country	Czechia
Website	host.io/tlapnet.cz·tlapnet.cz
Hosted domains	593
IPv4 addresses	15,104
IPv6 addresses	5.78 × 10³⁰
ASN type	ISP
Registry	RIPE
Allocated	8 years ago on Jan 29, 2018
Updated	29 days ago on Aug 17, 2026

Ranking

#8,413

Overall rank

among 74,641 networks

Traffic

#8,243

Infrastructure

#6,685

#54inCzechia

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

Czechia
100%

Held location over 90 days: 79%
Held location over 1 year: 72%
Median days between moves: 85 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
37.221.240.0/20	Jiri Tlapak	4,096
45.153.192.0/22	Jiri Tlapak	1,024
85.255.88.0/22	Jiri Tlapak	1,024
185.19.0.0/22	Jiri Tlapak	1,024
185.64.220.0/22	Jiri Tlapak	1,024
185.87.140.0/22	Jiri Tlapak	1,024
185.97.24.0/22	Jiri Tlapak	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	Jiri Tlapak	512

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 593 domain names hosted across 136 IP addresses on this ASN.

IP Address	Domain	Count
91.224.90.13		86
5.59.102.15		41
5.59.102.14		40
91.224.90.10		35
91.224.90.152		24

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs49
Hotel12
Restaurant9
Business Services5

Category	In AS204666	Example IP

Places

Peers

There are 4 peers for this ASN.

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

Upstreams

There are 2 upstreams for this ASN.

ASN	Name	Rank
AS16019	Vodafone Czech Republic a.s.
AS47232	ISP Alliance a.s.

Downstreams

There are 2 downstreams for this ASN.

ASN	Name	Rank
AS197412	Jiri Tlapak
AS210436	IT Globe s.r.o.

Pingable IPs

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

IP Address	ASN	Details
37.221.248.122 Ping	AS204666Jiri Tlapak	4.16ms from Prague, CZ
185.19.0.193 Ping	AS204666Jiri Tlapak	1.92ms from Prague, CZ
185.74.60.72 Ping	AS204666Jiri Tlapak	1.45ms from Prague, CZ
185.64.222.33 Ping	AS204666Jiri Tlapak	1.79ms from Prague, CZ
37.221.253.185 Ping	AS204666Jiri Tlapak	0.42ms from Prague, CZ
185.64.221.203 Ping	AS204666Jiri Tlapak	0.47ms from Prague, CZ
45.153.194.17 Ping	AS204666Jiri Tlapak	0.24ms from Prague, CZ
185.188.103.129 Ping	AS204666Jiri Tlapak	0.58ms from Prague, CZ
185.230.175.254 Ping	AS204666Jiri Tlapak	9.63ms from Prague, CZ
37.221.250.222 Ping	AS204666Jiri Tlapak	2.41ms from Prague, CZ

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS204666


5.59.103.100	Prague, Czechia
45.153.194.242	Prague, Czechia
45.153.194.241	Prague, Czechia
45.153.194.42	Prague, Czechia
45.153.194.41	Prague, Czechia
45.153.194.37	Prague, Czechia
45.153.194.38	Prague, Czechia
45.153.194.34	Prague, Czechia
45.153.194.178	Prague, Czechia
45.153.194.33	Prague, Czechia

Important routers in AS204666

Traceroute

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

$ traceroute -a -n -q1 -m24 85.255.88.0

traceroute to 85.255.88.0 (85.255.88.0): 24 hops max, 52 byte packets

1 [AS174] 38.96.254.1 0.335 ms

2 *

3 [AS174] 154.24.0.141 0.696 ms

4 [AS174] 154.54.5.194 28.08 ms

5 [AS174] 154.54.165.101 50.88 ms

6 [AS174] 154.54.41.206 58.279 ms

7 [AS174] 154.54.44.161 127.732 ms

8 [AS174] 154.54.77.245 137.986 ms

9 [AS174] 154.54.38.206 145.494 ms

10 [AS174] 154.54.77.130 153.598 ms

11 [AS174] 149.6.24.50 148.228 ms

12 [AS39392] 88.86.98.38 150.331 ms

13 [AS204064] 185.116.51.146 155.945 ms

14 *

15 *

16 [AS204666] 45.153.194.34 148.374 ms

17 *

18 [AS204666] 185.243.173.6 149.996 ms

19 *

20 *

21 [AS204666] 185.243.173.6 151.517 ms

22 *

23 *

24 *

Measurement taken from

IPinfo ProbeNet in Vancouver, CA

On September 10, 2026

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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AS204666

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS204666

Important routers in AS204666

Traceroute

Related Networks

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What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

Important routers in AS204666

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

IP Ranges

Places

AS199657

AS201559

AS203645

AS214757

AS215260

AS25238