Autonomous System details

AS204666

Jiri Tlapak · tlapnet.cz

Czechia

BitTorrent

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AS204666 – Jiri Tlapak

Field	Value
Country	Czechia
Website	tlapnet.cz
Hosted domains	661
IPv4 addresses	15,104
IPv6 addresses	4,516,006,472,238,886,852,629,200,000,000
ASN type	ISP
Registry	ripe
Allocated	8 years ago on Jan 29, 2018
Updated	a year ago on Mar 25, 2025

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
185.64.222.0/24	client usage	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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Downstreams

There are 2 downstreams for this ASN.

Downstreams	Name
AS197412	Jiri Tlapak
AS210436	IT Globe s.r.o.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
85.255.91.129	AS204666 Jiri Tlapak	`3.03ms` from Prague, CZ
185.97.26.2	AS204666 Jiri Tlapak	`2.48ms` from Prague, CZ
185.64.221.203	AS204666 Jiri Tlapak	`0.46ms` from Prague, CZ
37.221.240.38	AS204666 Jiri Tlapak	`0.36ms` from Prague, CZ
176.119.192.129	AS204666 Jiri Tlapak	`0.39ms` from Prague, CZ
185.87.141.97	AS204666 Jiri Tlapak	`3.43ms` from Prague, CZ
45.153.195.225	AS204666 Jiri Tlapak	`0.55ms` from Prague, CZ
45.153.193.156	AS204666 Jiri Tlapak	`0.34ms` from Prague, CZ
2a03:d840:fff:f000:9209:d0ff:fe87:1d3	AS204666 Jiri Tlapak	`9.19ms` from Prague, CZ
37.221.252.5	AS204666 Jiri Tlapak	`1.44ms` from Prague, CZ
185.243.172.1	AS204666 Jiri Tlapak	`0.38ms` from Prague, CZ
37.221.246.1	AS204666 Jiri Tlapak	`0.42ms` from Prague, CZ
37.221.248.5	AS204666 Jiri Tlapak	`4.10ms` from Prague, CZ
185.64.222.33	AS204666 Jiri Tlapak	`1.47ms` from Prague, CZ
37.221.242.221	AS204666 Jiri Tlapak	`0.49ms` from Prague, CZ
5.59.102.24	AS204666 Jiri Tlapak	`0.44ms` from Prague, CZ
185.87.142.66	AS204666 Jiri Tlapak	`1.46ms` from Prague, CZ
37.221.245.15	AS204666 Jiri Tlapak	`3.50ms` from Prague, CZ
185.97.24.5	AS204666 Jiri Tlapak	`2.46ms` from Prague, CZ
185.64.220.249	AS204666 Jiri Tlapak	`1.46ms` from Prague, CZ
2a04:c740:ffff:ffa3::1	AS204666 Jiri Tlapak	`0.37ms` from Prague, CZ
85.255.89.202	AS204666 Jiri Tlapak	`5.13ms` from Prague, CZ
185.87.140.58	AS204666 Jiri Tlapak	`4.56ms` from Prague, CZ
37.221.255.98	AS204666 Jiri Tlapak	`0.41ms` from Prague, CZ
185.243.174.228	AS204666 Jiri Tlapak	`3.05ms` 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
97.219.165.90	AS6167 Verizon Business	`9.79ms` from Atlanta, US
172.125.162.42	AS7018 AT&T Enterprises, LLC	`6.01ms` from Atlanta, US
186.124.23.138	AS7303 Telecom Argentina S.A.	`1.12ms` from Buenos Aires, AR
154.180.105.42	AS8452 TE-AS	`7.52ms` from Cairo, EG
3.135.22.26	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
86.23.221.186	AS5089 Virgin Media Limited	`10.02ms` from Dublin, IE
134.93.11.58	AS2857 Johannes Gutenberg-Universitaet Mainz	`1.52ms` from Frankfurt am Main, DE
218.108.248.202	AS24139 Huashu media&Network Limited	`4.12ms` from Hangzhou, CN
128.204.162.202	AS42514 Signal Service LLC	`12.91ms` from Moscow, RU
134.180.200.42	AS2519 ARTERIA Networks Corporation	`5.18ms` from Osaka, JP
163.171.85.42	AS54994 Meteverse Limited.	`0.39ms` from Osaka, JP
89.85.46.106	AS5410 Bouygues Telecom SA	`6.00ms` from Paris, FR
206.135.3.42	AS28458 IENTC S DE RL DE CV	`1.86ms` from Santiago de Queretaro, MX
161.117.137.106	AS45102 Alibaba (US) Technology Co., Ltd.	`0.26ms` from Singapore, SG
27.100.63.106	AS23805 Watarase Television Co.,Ltd	`3.50ms` from Tokyo, JP
109.177.149.106	AS5384 Emirates Internet	`2.45ms` from Al Fujairah City, AE
73.200.41.202	AS7922 Comcast Cable Communications, LLC	`5.64ms` from Ashburn, US
223.205.197.186	AS45758 Triple T Broadband Public Company Limited	`11.42ms` from Bangkok, TH
142.93.215.106	AS14061 DigitalOcean, LLC	`0.26ms` from Bengaluru, IN
90.129.121.106	AS1257 Tele2 Sverige AB	`1.45ms` from Copenhagen, DK
101.37.43.10	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.58ms` from Hangzhou, CN
148.71.92.90	AS12353 Vodafone Portugal	`2.27ms` from Lisbon, PT
80.5.233.58	AS5089 Virgin Media Limited	`5.86ms` from London, GB
203.177.234.42	AS132199 Globe Telecom Inc.	`4.44ms` from Manila, PH
194.169.192.26	AS211724 Systematica LLC	`0.97ms` from Moscow, RU

Traceroute

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

traceroute -a -n -q1 -f3 85.255.89.224

traceroute to 85.255.89.224 (85.255.89.224): 64 hops max, 52 byte packets

3 [AS13194] 185.0.20.23 1.3 ms

4 [AS47232] 185.151.171.66 2.651 ms

5 *

6 *

7 [AS204666] 45.153.194.42 0.687 ms

8 [AS204666] 176.119.192.130 0.667 ms

9 [AS204666] 85.255.89.224 7.131 ms

Measurement taken from

IPinfo ProbeNet in Prague, CZ

On March 28th 2026

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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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